djvu | 0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd

General

Target
0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe
Size 847KB
Sample220405-gw2d8aadb3
SHA256 0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd
MD5 a1c859cfd007efe187b13cc8d31a6e6c
SHA1 e7f70d2c4b989efb506cb2d52f899d0f0d2a1300
SHA512 3e7df4fab352ce7d7897396eae764e90517a69b3ca18ebee4547ea054a9dd8b5852f60795d8b05819b585a78aa6afc31358f4ddea3f3a59f809fc682e9503522
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.udla
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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-fnn5kv33Vv 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: 0435JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral1/memory/700-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/700-56-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1032-60-0x0000000001D70000-0x0000000001E8B000-memory.dmp	family_djvu
behavioral1/memory/700-61-0x0000000000400000-0x0000000000537000-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 1032 set thread context of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1936	700	WerFault.exe	28

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 1032 wrote to memory of 700	1032	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	28
PID 700 wrote to memory of 1936	700	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	29
PID 700 wrote to memory of 1936	700	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	29
PID 700 wrote to memory of 1936	700	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	29
PID 700 wrote to memory of 1936	700	0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe	29

C:\Users\Admin\AppData\Local\Temp\0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe
"C:\Users\Admin\AppData\Local\Temp\0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Users\Admin\AppData\Local\Temp\0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe
  "C:\Users\Admin\AppData\Local\Temp\0b6c3923a7d34f3062dab70853887a2a3c8bdb009e9a110d4a554bef892b26fd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:700
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 700 -s 192
    3⤵
    - Program crash
    PID:1936

Network

MITRE ATT&CK Matrix

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Downloads

memory/700-55-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/700-59-0x0000000075181000-0x0000000075183000-memory.dmp

Download

memory/700-61-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/1032-54-0x0000000000520000-0x00000000005B2000-memory.dmp

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memory/1032-58-0x0000000000520000-0x00000000005B2000-memory.dmp

Download

memory/1032-60-0x0000000001D70000-0x0000000001E8B000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads