djvu | 98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f

General

Target
98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe
Size 769KB
Sample220406-pbfwsacch7
SHA256 98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f
MD5 b3066f0d8b352cd9e5c18e19118834aa
SHA1 7cfcb6b5848aac682605cc596f52121327a11c57
SHA512 f1967c20b250b234e15682ae6c92645cc24460a01a8db0268e94b092405df54ed56ccac1bc7f97ef71fe549f7698e1e3d6a0d9c6b5cb7071f5f4692dedcd990b
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes

extension
.tuid
offline_id
LgcOIftV0dQfFBQStVNfb8BhHy8tHRPvXwSiFwt1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/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. You can get and look video overview decrypt tool: https://we.tl/t-FglTTmgzZT Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0440tOjkfd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral1/memory/1732-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1732-56-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1940-59-0x0000000001EF0000-0x000000000200B000-memory.dmp	family_djvu
behavioral1/memory/1732-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1940 set thread context of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1120	1732	WerFault.exe	28

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1940 wrote to memory of 1732	1940	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	28
PID 1732 wrote to memory of 1120	1732	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	29
PID 1732 wrote to memory of 1120	1732	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	29
PID 1732 wrote to memory of 1120	1732	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	29
PID 1732 wrote to memory of 1120	1732	98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe	29

C:\Users\Admin\AppData\Local\Temp\98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe
"C:\Users\Admin\AppData\Local\Temp\98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Users\Admin\AppData\Local\Temp\98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe
  "C:\Users\Admin\AppData\Local\Temp\98ad8fb18714111b504cec9ca6a95f77520ad92a8ee331dc562a86b53f53aa2f.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1732
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 192
    3⤵
    - Program crash
    PID:1120

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1732-55-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/1732-60-0x0000000075AA1000-0x0000000075AA3000-memory.dmp

Download

memory/1732-61-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/1940-54-0x0000000000220000-0x00000000002B2000-memory.dmp

Download

memory/1940-58-0x0000000000220000-0x00000000002B2000-memory.dmp

Download

memory/1940-59-0x0000000001EF0000-0x000000000200B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads