djvu | 0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb

General

Target

0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
Size

711KB
MD5

2fe74589699ad8b98b23c473414a5c6a
SHA1

84b1ab6c53ce76ca7c8710a3fc943f12c260adaa
SHA256

0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb
SHA512

2a473345343ee3869687cdde79921f9c6c9300d65e14056ad63788dd2459883c65ada384d15f6cc66ff09763ac52703314efba8175acba90ba0f8623be5350b5
SSDEEP

12288:Q972r9a2oBGCKmQltAg2toQoB4YfxKogqv5MuY:Q9KrDmQDAghxKov5Z

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/2672-2-0x0000000004A20000-0x0000000004B3B000-memory.dmp	family_djvu
behavioral1/memory/4836-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4836-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4836-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4836-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4836-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4512-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4512-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4512-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4512-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4512-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4512-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4512-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4512-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4512-37-0x0000000000400000-0x0000000000537000-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:

0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4120 icacls.exe

pid	process
4120	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\92a43025-1d04-48e3-b4ee-01edda4437b5\\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe\" --AutoStart"	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.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
13 api.2ip.ua

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe

description	pid	process	target process
PID 2672 set thread context of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 set thread context of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.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:

0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe

pid	process
4836	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
4836	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
4512	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
4512	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe

C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2672

C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4836

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\92a43025-1d04-48e3-b4ee-01edda4437b5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:4120

C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3116

C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
"C:\Users\Admin\AppData\Local\Temp\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4512

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
1KB

MD5
7575c39a544943a68ce6e709c586005a

SHA1
4874b30bd1d455b28a95c4e21c5aecd1ea043d7a

SHA256
4737de49245ace1ca1fdeaacd5feee9bbda88bc6f42c84a1ea7d316383792cf8

SHA512
abf3d85393725113e720cbe8980b369236511e3984e8cbfa795f19bb5d6e39822e80a835caeb498581797a74b349765ba1a27f26586a17a66ae1c88bd066a3d1

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
cf346c75fc8adc976260ed91ffc4790e

SHA1
2f254e0086fa7c6cc8c2e7668f043ee98b37cfb6

SHA256
8f0803441160e3e1e05d1bcea12b793d3687ff6b807f8ec02f0da1aaef46ff26

SHA512
de6b353710f9a162331e968a87403da25059bdc78df543ddd191de1934eb3f5e0e026214b67ea7e00514f2c22f1c26a551f7e35d0d9f360acdf8e9093e945a8a

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

Filesize
392B

MD5
31ab6432a43361d81da1de1aa0a18330

SHA1
5f8743afc92567fc6d291dbc06004ae2f536a2b0

SHA256
bba1d72e95bf9b87d5f3ce1a72d1f9db833cd80273f068eae6b2544338e2af9f

SHA512
ed4166d5b0e10cfa991008775058d61d84147fcfadf4d91712c106a88df2de1c85d3ce059d0b662cece2716ed7277a70de91d068e2b1af780d7caab601fd1024

Download Submit
C:\Users\Admin\AppData\Local\92a43025-1d04-48e3-b4ee-01edda4437b5\0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe

Filesize
711KB

MD5
2fe74589699ad8b98b23c473414a5c6a

SHA1
84b1ab6c53ce76ca7c8710a3fc943f12c260adaa

SHA256
0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb

SHA512
2a473345343ee3869687cdde79921f9c6c9300d65e14056ad63788dd2459883c65ada384d15f6cc66ff09763ac52703314efba8175acba90ba0f8623be5350b5

Download Submit
memory/2672-2-0x0000000004A20000-0x0000000004B3B000-memory.dmp

Filesize
1.1MB

Download
memory/2672-1-0x0000000004970000-0x0000000004A11000-memory.dmp

Filesize
644KB

Download
memory/4512-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4512-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4512-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4512-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4512-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4512-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4512-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4512-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4512-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4836-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4836-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4836-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4836-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4836-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 2672 wrote to memory of 4836	2672	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 4836 wrote to memory of 4120	4836	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	icacls.exe
PID 4836 wrote to memory of 4120	4836	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	icacls.exe
PID 4836 wrote to memory of 4120	4836	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	icacls.exe
PID 4836 wrote to memory of 3116	4836	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 4836 wrote to memory of 3116	4836	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 4836 wrote to memory of 3116	4836	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe
PID 3116 wrote to memory of 4512	3116	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe	0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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