djvu | 2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566

General

Target

2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
Size

715KB
MD5

c66f6526cf8048ed4321ef0b592c4f37
SHA1

6a5d983c1b271eac5e83c39a35e9e2ee52e2d70e
SHA256

2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566
SHA512

efed699b17aba71139948773490a56a8ed2e44544450e43c76d79b6d497198ccce1c88106fff8fa19dfa117dad791ea203a691915aef643230f7b0aae1a5d2d2
SSDEEP

12288:Fftt4wBz9WMNEz2ZupC0UYVvOULtvr6zblQgI55oFCNvEEDUA+nJugk:FfTGz2mfTlr61LSUEEDJug

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vepi
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: 0871PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2996-2-0x0000000004A30000-0x0000000004B4B000-memory.dmp	family_djvu
behavioral1/memory/324-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/324-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/324-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/324-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/324-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5060-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5060-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5060-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5060-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5060-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5060-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5060-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5060-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5060-35-0x0000000000400000-0x0000000000537000-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:

2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2708 icacls.exe

pid	process
2708	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\61f4b411-a382-40ae-945b-90e2a80ca95a\\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe\" --AutoStart"	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.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

5 api.2ip.ua
6 api.2ip.ua
20 api.2ip.ua

flow	ioc
5	api.2ip.ua
6	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe

description	pid	process	target process
PID 2996 set thread context of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 set thread context of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.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:

2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe

pid	process
324	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
324	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
5060	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
5060	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe

C:\Users\Admin\AppData\Local\Temp\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
"C:\Users\Admin\AppData\Local\Temp\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2996

C:\Users\Admin\AppData\Local\Temp\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
"C:\Users\Admin\AppData\Local\Temp\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:324

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\61f4b411-a382-40ae-945b-90e2a80ca95a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2708

C:\Users\Admin\AppData\Local\Temp\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
"C:\Users\Admin\AppData\Local\Temp\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4180

C:\Users\Admin\AppData\Local\Temp\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
"C:\Users\Admin\AppData\Local\Temp\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:5060

Network

MITRE ATT&CK Matrix ATT&CK v13

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

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
3bfb237d95f9c34465d50360f39b3ceb

SHA1
2cdee845ea6ebbd3cd0466b0eae4752842de86cc

SHA256
2ceaddb29268e6112e7aa95722894fb061238ad4e2b247ce23595609daa5eb8d

SHA512
da55bf0fd898acda5dfd2366a96d439807e502c763dca35c3a119c3ab45f6e3d821a1e3fd29858e333606ef0e822f3373b9cb8c41d95736131bb001ad5b6a16f

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
bc2a14e0f372b00132f7fca290c23209

SHA1
2babd5144adbeab62e79ecea205e58b09669dd85

SHA256
5f2f1241c991a7452ac9e6d8f0bf988743e941d0e1930f419739e7cec4f722a0

SHA512
a798709eca40a7ee380c079d48ca3a06a1cd136ce43ff71a36365e8806e6c1ee566034d207219390051fbb577b9c38a1a9a7235767200d185c4df4fe4548f36a

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

MD5
ab24db76bf13c6259c9c5106f2aa9bd2

SHA1
04960bc332c28f19e307c055f7be67172c4f8962

SHA256
233eb73cde644df830caf8dc30dfa256a25344edc8b7c64c80626fd660bd822d

SHA512
efab744b95dc46521a3b9a6254fb986b83fbc033ef3d7168e3de598e8d0a61e5fa3c6f0565aea76b91b2404f0082182d9ad6a2a5f6e52ccfa2d04b0cad0d604d

Download Submit
C:\Users\Admin\AppData\Local\61f4b411-a382-40ae-945b-90e2a80ca95a\2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
Filesize
715KB

MD5
c66f6526cf8048ed4321ef0b592c4f37

SHA1
6a5d983c1b271eac5e83c39a35e9e2ee52e2d70e

SHA256
2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566

SHA512
efed699b17aba71139948773490a56a8ed2e44544450e43c76d79b6d497198ccce1c88106fff8fa19dfa117dad791ea203a691915aef643230f7b0aae1a5d2d2

Download Submit
memory/324-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/324-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/324-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/324-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/324-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2996-2-0x0000000004A30000-0x0000000004B4B000-memory.dmp

Filesize
1.1MB

Download
memory/2996-1-0x0000000004990000-0x0000000004A2F000-memory.dmp

Filesize
636KB

Download
memory/5060-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 2996 wrote to memory of 324	2996	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 324 wrote to memory of 2708	324	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	icacls.exe
PID 324 wrote to memory of 2708	324	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	icacls.exe
PID 324 wrote to memory of 2708	324	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	icacls.exe
PID 324 wrote to memory of 4180	324	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 324 wrote to memory of 4180	324	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 324 wrote to memory of 4180	324	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe
PID 4180 wrote to memory of 5060	4180	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe	2e94fa848a8f61a10effb95a0ab9072b99da3f0596d37136a963b235d1a83566.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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