djvu | 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f

Analysis

max time kernel
291s
max time network
164s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-06-2024 05:05

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General

Target

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
Size

824KB
MD5

9b3e38e023020228484dcc008d6f6e52
SHA1

16a218483c71a8edeb7c43a9ff3696e53c586ef2
SHA256

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f
SHA512

0f46c3509890560a4c753efb5d6b940b545a2619b277c536fae8cb2dab280def9afd61b7d7d7e0ab08a879dcf2288705e92a3066b37da1a1c2b0e0ca64e98399
SSDEEP

24576:ATJYdNu+4/LN1WKVQ7A6WNETiczoc9myk:AGV4/LK+pPwRNmy

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://cajgtus.com/test1/get.php

Attributes

extension
.watz
offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
payload_url
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/abe121434ad837dd5bdd03878a14485820240531135509/34284d Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0874PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2180-5-0x0000000001E20000-0x0000000001F3B000-memory.dmp	family_djvu
behavioral1/memory/2508-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2508-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2508-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2508-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-58-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2720-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2456 icacls.exe

pid	process
2456	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a266caa3-17b9-4a81-bbf3-65584bf00212\\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe\" --AutoStart"	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 api.2ip.ua
4 api.2ip.ua
9 api.2ip.ua

flow	ioc
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

description	pid	process	target process
PID 2180 set thread context of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 set thread context of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

pid	process
2508	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
2720	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
2720	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2180

C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2508

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\a266caa3-17b9-4a81-bbf3-65584bf00212" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2456

C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2404

C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2720

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize
1KB

MD5
2365869258df7a66a2121b802ca4afd9

SHA1
73acc30a2edeb9d6830de559bb8a74f35168135d

SHA256
d6b1932822bbd72a8e78c771717d992142348f67d625a42393719fefbe59b0ed

SHA512
795004bab536e128dbd81c188976d37c7b650efbfa5a80374df4c65a1049c27658f4620b7605583928eb167fcb69b4c99e4c8730c507b824a7bde9c7fb0e21f4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
Filesize
436B

MD5
1bfe0a81db078ea084ff82fe545176fe

SHA1
50b116f578bd272922fa8eae94f7b02fd3b88384

SHA256
5ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f

SHA512
37c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize
174B

MD5
eea839ddcfbcca1209f1a4fa9b0798bf

SHA1
561ba5f97c0576a46204bf68c5279e3f29d229b9

SHA256
1f8452b800d1f49fe865a5d82981cf83419b0c5f135d88334d79e53c0afcdbba

SHA512
69a9a9fe42b0ee388ab01f8ccfe991c2d7d8659a6d63771cb9d1b15945166c196743c7525f06d016235ff435b61051ffe8c2b4a0772568c6b0fda69d9e0aed27

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
18f4ba889a627eaed713adacb3f81e7b

SHA1
20feed2c134006e0a7830d3ad9e25f960bc936e7

SHA256
8b0c6b3e0b1488db66bba9d305466e9df0283c56c525ec1316e4ba1b82e398d4

SHA512
eafb0f650088a2eade5af3069edabbed5f98f3e910f45cecb2bec152b49896767d0edce640d7776584cb2ab1732dc4512de5d407c91f7fbdbc31e9d14ffce1b3

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize
170B

MD5
b343a3525b0e69537916d149879fcd27

SHA1
aa1ce3feed6e3258b5c25e7e74a59e82d8b00b31

SHA256
d78a229b538c01c15fa294ab85072426a076f3f683132191dcc9c29c21a08728

SHA512
3301200114465e19f28700fd2051df90c68ec29e8fa12cb1f616adbb9f9bafb524e400d44324d732fced4f5db1bfe8c325ce841fd4953d07bb7e02c05c8c3841

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab7DC7.tmp
Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\a266caa3-17b9-4a81-bbf3-65584bf00212\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
Filesize
824KB

MD5
9b3e38e023020228484dcc008d6f6e52

SHA1
16a218483c71a8edeb7c43a9ff3696e53c586ef2

SHA256
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f

SHA512
0f46c3509890560a4c753efb5d6b940b545a2619b277c536fae8cb2dab280def9afd61b7d7d7e0ab08a879dcf2288705e92a3066b37da1a1c2b0e0ca64e98399

Download Submit
memory/2180-6-0x00000000002C0000-0x0000000000352000-memory.dmp

Filesize
584KB

Download
memory/2180-0-0x00000000002C0000-0x0000000000352000-memory.dmp

Filesize
584KB

Download
memory/2180-5-0x0000000001E20000-0x0000000001F3B000-memory.dmp

Filesize
1.1MB

Download
memory/2404-30-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2404-31-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/2404-35-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/2508-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2508-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2508-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2508-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2508-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-58-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2720-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2180 wrote to memory of 2508	2180	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2508 wrote to memory of 2456	2508	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	icacls.exe
PID 2508 wrote to memory of 2456	2508	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	icacls.exe
PID 2508 wrote to memory of 2456	2508	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	icacls.exe
PID 2508 wrote to memory of 2456	2508	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	icacls.exe
PID 2508 wrote to memory of 2404	2508	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2508 wrote to memory of 2404	2508	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2508 wrote to memory of 2404	2508	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2508 wrote to memory of 2404	2508	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 2404 wrote to memory of 2720	2404	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe