djvu | ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35

General

Target

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
Size

710KB
MD5

3b8a963e6b19ad273243a1a31c8daca5
SHA1

a1e84e3b6d68892d95427fb0d2602982b0ed3763
SHA256

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35
SHA512

c7560121fa534a6945eca35a395e57683157ce2942e9bfebc69bad16013c2c864e3bf2b8f7b39a6dbdfa4a00d6d63cefbec785b6cdaa844123c97b44999f6561
SSDEEP

12288:uZFvwaeEjEzNrkoB7l2sBag8RObTEJtV8iHBB3d6cGdAQ9GWmJK4nVDq8Xw7K5qg:uZFYnEjGNwoB7fdzEJt2iHBBMRdLEJKU

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/4896-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2688-4-0x0000000004A80000-0x0000000004B9B000-memory.dmp	family_djvu
behavioral2/memory/4896-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4896-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4896-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4896-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4620-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4620-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4620-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4620-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4620-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4620-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4620-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4620-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4620-35-0x0000000000400000-0x0000000000537000-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:

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

1188 icacls.exe

pid	process
1188	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\62ac14a8-fc23-4081-83ac-6d24dfe8d366\\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe\" --AutoStart"	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.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
17 api.2ip.ua

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exeed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

description	pid	process	target process
PID 2688 set thread context of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 set thread context of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.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:

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exeed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

pid	process
4896	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
4896	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
4620	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
4620	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exeed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exeed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
  "C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4896
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\62ac14a8-fc23-4081-83ac-6d24dfe8d366" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1188
- - C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
    "C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1940
  - - C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
      "C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:4620

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

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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
4dc5ef10f84496fdbd166fb76286de73

SHA1
4eaef02980b691b3271363f4d3612d9c3d5e957d

SHA256
f7eb18579b848ae508cc3a8673a3d5734757c61dc71105ccdb7c9c35fd0d1bd4

SHA512
80096c9b84f2fedd8013d44d7cacc05c20aa8dc8badc748d7e0d634b374447b35cb8bb4a60558360bfa1549f70e36d61b4a9013c23eb356fd9df943d1b54a1e5

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

Filesize
392B

MD5
770d21ce6f0c6328b979e96c4c2a7b3e

SHA1
306d4a351f774868c69053a286eef7e279cb4afe

SHA256
2131bfc573c82a81262a92bfb173ff8357c8ab4e64b13e1e1ed19ed258cb6254

SHA512
9d87fcfb182f4e262bbabeb1cd0fd10ffd76a33808f18808a182fa16c1e39d575e6cfc053d9fb8e2f391b84441fa93127fa113413000930d9b7ff9184367da81

Download Submit
C:\Users\Admin\AppData\Local\62ac14a8-fc23-4081-83ac-6d24dfe8d366\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

Filesize
710KB

MD5
3b8a963e6b19ad273243a1a31c8daca5

SHA1
a1e84e3b6d68892d95427fb0d2602982b0ed3763

SHA256
ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35

SHA512
c7560121fa534a6945eca35a395e57683157ce2942e9bfebc69bad16013c2c864e3bf2b8f7b39a6dbdfa4a00d6d63cefbec785b6cdaa844123c97b44999f6561

Download Submit
memory/2688-1-0x0000000004920000-0x00000000049B4000-memory.dmp

Filesize
592KB

Download
memory/2688-4-0x0000000004A80000-0x0000000004B9B000-memory.dmp

Filesize
1.1MB

Download
memory/4620-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4620-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4620-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4620-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4620-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4620-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4620-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4620-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4620-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4896-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4896-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4896-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4896-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4896-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2688 wrote to memory of 4896	2688	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 4896 wrote to memory of 1188	4896	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	icacls.exe
PID 4896 wrote to memory of 1188	4896	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	icacls.exe
PID 4896 wrote to memory of 1188	4896	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	icacls.exe
PID 4896 wrote to memory of 1940	4896	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 4896 wrote to memory of 1940	4896	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 4896 wrote to memory of 1940	4896	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1940 wrote to memory of 4620	1940	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads