djvu | 3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c

General

Target

3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
Size

710KB
MD5

25175281f6e6037cc3bc9f8afaaa77e9
SHA1

886350f89c88cd41df8605a1e1c75193f93b8965
SHA256

3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c
SHA512

29993e63d4029d0185f6bd03e17a4b1e4ee1df024f58a7e6e7b7d49edb81882f6ce6b0d796d40028174f2f5d700a66d6dcbb1c13cf5d62ecffb1fda6b7e6eb4e
SSDEEP

12288:1OZuzQX0lxciFv3CgvfmdZTTHdMSdppymPE5zZcBqkaC0ziaWWoOsX:1OAzPQ6vCgvfeZThMSQCszgqDC0zI/OU

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vehu
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
payload_url
http://sdfjhuz.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/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 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: 0872PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2384-2-0x0000000004AB0000-0x0000000004BCB000-memory.dmp	family_djvu
behavioral2/memory/3120-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3120-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3120-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3120-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3120-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3908-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3908-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3908-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3908-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3908-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3908-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3908-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3908-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3908-37-0x0000000000400000-0x0000000000537000-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

5060 icacls.exe

pid	process
5060	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\20447cfb-d3d8-4c45-8e9b-5f37e201db77\\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe\" --AutoStart"	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.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

1 api.2ip.ua
2 api.2ip.ua
8 api.2ip.ua

flow	ioc
1	api.2ip.ua
2	api.2ip.ua
8	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe

description	pid	process	target process
PID 2384 set thread context of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 set thread context of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.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:

3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe

pid	process
3120	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
3120	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
3908	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
3908	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe

C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2384

C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3120

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\20447cfb-d3d8-4c45-8e9b-5f37e201db77" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:5060

C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1008

C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
"C:\Users\Admin\AppData\Local\Temp\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:3908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
1KB

MD5
6728aea2631b86a76c237508d8ba9b55

SHA1
7a670f95cac088313f7558869162fe01c6dc0ec9

SHA256
e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b

SHA512
533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
410B

MD5
8f5ea58ff70895087b94db706c2f247d

SHA1
0d7feaa1a3199c0f4a6ceec61e5d57eac3c0762f

SHA256
02aeb414c96c3f3e549cd2823db950d77b50511de0922bd5c08d1772a82a98ce

SHA512
2ad20ec44f3207d6580cdb4c6b232aaed45dfc4ad149d27ec0777efd87b02fd4f5ede091fde1cc6411564c7b699bdbd2bc6d97e52db0fbcbcbf501c12562375b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
392B

MD5
3432c9352ba90e0255862249af62a73e

SHA1
f56f4b207fe0a6ba4bda1ca158c53cd7a7f58bfc

SHA256
efca290863b920febeb29341ced8d026eb2286928330d5907fe044c60cf20808

SHA512
1688038c486a46760ad66341d19c39344fb44e4bb86b48277d6ae3e2d098d319fdd25ee105d34c5cde521ea22dc723ebb07c5d288f8ca31ebe0ae6754240eafe

Download Submit
C:\Users\Admin\AppData\Local\20447cfb-d3d8-4c45-8e9b-5f37e201db77\3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
Filesize
710KB

MD5
25175281f6e6037cc3bc9f8afaaa77e9

SHA1
886350f89c88cd41df8605a1e1c75193f93b8965

SHA256
3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c

SHA512
29993e63d4029d0185f6bd03e17a4b1e4ee1df024f58a7e6e7b7d49edb81882f6ce6b0d796d40028174f2f5d700a66d6dcbb1c13cf5d62ecffb1fda6b7e6eb4e

Download Submit
memory/2384-2-0x0000000004AB0000-0x0000000004BCB000-memory.dmp

Filesize
1.1MB

Download
memory/2384-1-0x0000000004A10000-0x0000000004AAF000-memory.dmp

Filesize
636KB

Download
memory/3120-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3120-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3120-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3120-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3120-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3908-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3908-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3908-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3908-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3908-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3908-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3908-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3908-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3908-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 2384 wrote to memory of 3120	2384	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 3120 wrote to memory of 5060	3120	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	icacls.exe
PID 3120 wrote to memory of 5060	3120	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	icacls.exe
PID 3120 wrote to memory of 5060	3120	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	icacls.exe
PID 3120 wrote to memory of 1008	3120	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 3120 wrote to memory of 1008	3120	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 3120 wrote to memory of 1008	3120	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe
PID 1008 wrote to memory of 3908	1008	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe	3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads