djvu | 5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372

General

Target
5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe
Size 826KB
Sample220406-pbfk1scch3
SHA256 5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372
MD5 6e82c31c496989497b1d6451b2c0a77a
SHA1 26fed09e3d6f82a5ab29c2ffc27791d543991261
SHA512 20225be28dda66619c591d661a224919b4dcb72a84f5b8b59c2ccc0fccda75932d0999d4ce7a2927507e9684d06a4935192d6a030de4ae0b2a13522caf662ec5
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.uyjh
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: 0443tOjkfd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral2/memory/1892-125-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1892-126-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4916-129-0x00000000021E0000-0x00000000022FB000-memory.dmp	family_djvu
behavioral2/memory/1892-128-0x0000000000400000-0x0000000000537000-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 4916 set thread context of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1108	1892	WerFault.exe	80

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80
PID 4916 wrote to memory of 1892	4916	5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe	80

C:\Users\Admin\AppData\Local\Temp\5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe
"C:\Users\Admin\AppData\Local\Temp\5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4916
- C:\Users\Admin\AppData\Local\Temp\5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe
  "C:\Users\Admin\AppData\Local\Temp\5bfb7408eced7cf5790acefb708fc0be56d126e81364992347fd005f12542372.exe"
  2⤵
  PID:1892
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 536
    3⤵
    - Program crash
    PID:1108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1892 -ip 1892
1⤵
PID:4592

Network

MITRE ATT&CK Matrix

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Downloads

memory/1892-125-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/1892-126-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/1892-128-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4916-127-0x0000000002148000-0x00000000021D9000-memory.dmp

Download

memory/4916-129-0x00000000021E0000-0x00000000022FB000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads