djvu | cd753d7309e7a93ac13450f15f7a051a5ee815a2ae22cd9da3cd14e37e59d3a1

Analysis

max time kernel
143s
max time network
119s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 05:34

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General

Target

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
Size

806KB
MD5

88932ab33c38072946abc06b426d33b8
SHA1

accc6e0ba8e1e7250e2634a1f0e7f06be7f4beb2
SHA256

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee
SHA512

266beae33826041ee77d36f57b41ec4ffe9849faa6b40c4446e531685e30c317c3b282e4079b674a7f37ee79dafe92c41e5b0104e210703f4ca69f7013c9e4d7
SSDEEP

12288:qIowhzaoWcGawk7yVe+H1JU7VuzpzS3oxAiXZcmQGLu5t15KBM0JiY3u3SZtr9XW:vhzL5MkmQ+H/2KFXVotzeM03aSpyr

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://cajgtus.com/test2/get.php

Attributes

extension
.waqa
offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
payload_url
http://defgyma.com/dl/build2.exe
http://cajgtus.com/files/1/build3.exe
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: 0875PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 12 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1776-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1776-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1776-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1776-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2500-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2500-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2500-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2500-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2500-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2500-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2500-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2500-58-0x0000000000400000-0x0000000000537000-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

2568 icacls.exe

pid	process
2568	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\03f77319-b7e9-4802-aa57-af3f3260013c\\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe\" --AutoStart"	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.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:

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exed47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

description	pid	process	target process
PID 2548 set thread context of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 set thread context of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exed47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

pid process

1776 d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
2500 d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

pid	process
1776	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
2500	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exed47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exed47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
"C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2548

C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
"C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1776

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\03f77319-b7e9-4802-aa57-af3f3260013c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2568

C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
"C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2840

C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
"C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2500

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
ec5b5ab3d93b3a6468c24b5280859075

SHA1
a017ca198ebd1196bf79a5401dc258ad1ef08473

SHA256
65df2cdaace1fc6f830961f8a52bd10eee453f9b5e8bff6bae6d3285202c6e68

SHA512
15daa47072bcfc8e8d2544ecebee974b6a9171dc301cac2d2534e75c09307631a4f418eff138cf37cdf2b922a40f81d21ed205134211743179da416ea0d9ab0f

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

MD5
9d7b1a2714ee415d8c86d562b60997c9

SHA1
2a83337189718033005507548338b22aaa0692d9

SHA256
6813ad81e03fa15c7e0a19b6656b02967021a281e2f39ee1a039631d9c7ee0af

SHA512
d8ab32908d5bec3ddede383e83a7caed5cd89cd1d39110dfbb333c15b256e549586800aa33c5fafb038909fa00fbf90d26ce30b13dcb681edd7cf5af47b8394d

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

MD5
b704c9ce920f6ed21068df81f7ea9c33

SHA1
f5647149415a2f90ac3f804d502e39ca4780a266

SHA256
2e9ff82c3edd8b1448ae21850d45ce1462919dc20baf1eb21dfdf7f2a09824ac

SHA512
47170e0a320235f7002d3a1f0080c2a3dc7e4018a2cdb62940d1c00ff3f2ff4efea490c1fc8cac7a6a52e0344ac0df5c563855439148f80be325304efa744936

Download Submit
C:\Users\Admin\AppData\Local\03f77319-b7e9-4802-aa57-af3f3260013c\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
Filesize
806KB

MD5
88932ab33c38072946abc06b426d33b8

SHA1
accc6e0ba8e1e7250e2634a1f0e7f06be7f4beb2

SHA256
d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee

SHA512
266beae33826041ee77d36f57b41ec4ffe9849faa6b40c4446e531685e30c317c3b282e4079b674a7f37ee79dafe92c41e5b0104e210703f4ca69f7013c9e4d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab17B5.tmp
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
memory/1776-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1776-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1776-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1776-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1776-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2500-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2500-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2500-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2500-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2500-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2500-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2500-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2500-58-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2548-6-0x0000000003CE0000-0x0000000003DFB000-memory.dmp

Filesize
1.1MB

Download
memory/2548-1-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download
memory/2548-0-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download
memory/2840-31-0x0000000000360000-0x00000000003F1000-memory.dmp

Filesize
580KB

Download

description	pid	process	target process
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2548 wrote to memory of 1776	2548	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 1776 wrote to memory of 2568	1776	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	icacls.exe
PID 1776 wrote to memory of 2568	1776	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	icacls.exe
PID 1776 wrote to memory of 2568	1776	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	icacls.exe
PID 1776 wrote to memory of 2568	1776	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	icacls.exe
PID 1776 wrote to memory of 2840	1776	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 1776 wrote to memory of 2840	1776	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 1776 wrote to memory of 2840	1776	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 1776 wrote to memory of 2840	1776	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2840 wrote to memory of 2500	2840	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe