djvu | 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f

Analysis

max time kernel
149s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
16-06-2024 01:10

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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 18 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1388-2-0x00000000021D0000-0x00000000022EB000-memory.dmp	family_djvu
behavioral2/memory/4168-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4168-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4168-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4168-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4168-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-43-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/648-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

1640 icacls.exe

pid	process
1640	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-1-5-21-2080292272-204036150-2159171770-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\eb64e0ad-8f75-4edf-86ab-a7bb64c82677\\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

18 api.2ip.ua
19 api.2ip.ua
25 api.2ip.ua

flow	ioc
18	api.2ip.ua
19	api.2ip.ua
25	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

description	pid	process	target process
PID 1388 set thread context of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 set thread context of 648	1016	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 4 IoCs

Processes:

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

pid	process
4168	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
4168	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
648	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
648	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe

Suspicious use of WriteProcessMemory 26 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:1388

C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4168

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\eb64e0ad-8f75-4edf-86ab-a7bb64c82677" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:1640

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:1016

C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
"C:\Users\Admin\AppData\Local\Temp\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:648

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
eb814d3016bfd0e457315019fca20828

SHA1
20d1933eb4cab89e6fe64e9f26d786a3cbd5df4e

SHA256
746d682e50db1930680e93ecc9d0b57ecc5c1c0027e418de67e288f78adb5c0f

SHA512
5e1ee8d5d9913d2746f33e21d06d8cc858be6dfe553905539bee325921c2825598739dc0036e4c82c4d902fc9295d1b3b8335240c5d2b6eca67ed064692ab104

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

MD5
ce2163ac428c7404fb73d112e9ee1ac8

SHA1
bc04ed4c12ef13d5b6e462c425fbc5c082387bbe

SHA256
5518d4060c0abdd3ae4629f5fdcd195c12052fb46c01564da5f51098cb8707fe

SHA512
83bb932f96cbcd3b11971607d1d59678115d89b723ac7bedacfa744caafe4a5a11203c73a05c726e3164e818a45b6430669a6625c26df473e13108c55050e0b9

Download Submit
C:\Users\Admin\AppData\Local\eb64e0ad-8f75-4edf-86ab-a7bb64c82677\567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
Filesize
824KB

MD5
9b3e38e023020228484dcc008d6f6e52

SHA1
16a218483c71a8edeb7c43a9ff3696e53c586ef2

SHA256
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f

SHA512
0f46c3509890560a4c753efb5d6b940b545a2619b277c536fae8cb2dab280def9afd61b7d7d7e0ab08a879dcf2288705e92a3066b37da1a1c2b0e0ca64e98399

Download Submit
memory/648-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-43-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/648-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1016-27-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/1016-23-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/1388-2-0x00000000021D0000-0x00000000022EB000-memory.dmp

Filesize
1.1MB

Download
memory/1388-1-0x0000000000790000-0x000000000082D000-memory.dmp

Filesize
628KB

Download
memory/4168-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4168-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4168-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4168-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4168-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1388 wrote to memory of 4168	1388	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 4168 wrote to memory of 1640	4168	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	icacls.exe
PID 4168 wrote to memory of 1640	4168	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	icacls.exe
PID 4168 wrote to memory of 1640	4168	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	icacls.exe
PID 4168 wrote to memory of 1016	4168	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 4168 wrote to memory of 1016	4168	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 4168 wrote to memory of 1016	4168	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe
PID 1016 wrote to memory of 648	1016	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe	567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f.exe