djvu | db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2

General

Target
db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe
Size 847KB
Sample220405-gyrb2aeacl
SHA256 db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2
MD5 d7c0d4993d4239fb48df1c3a026c3881
SHA1 915a5fc458766865f9d0be823236c4c212c1d921
SHA512 e924b951e4076cb8c1e4b73fdcf8c7f4099eaabf833a70adc4f792e084e809fa2684b2db8ba3e975cf15e121b3c444ff8665875c5da16d0737ad113a13cb71c2
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
behavioral2/memory/4004-125-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4004-126-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3492-128-0x0000000002430000-0x000000000254B000-memory.dmp	family_djvu
behavioral2/memory/4004-129-0x0000000000400000-0x0000000000537000-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 3492 set thread context of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5020	4004	WerFault.exe	79

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79
PID 3492 wrote to memory of 4004	3492	db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe	79

C:\Users\Admin\AppData\Local\Temp\db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe
"C:\Users\Admin\AppData\Local\Temp\db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3492
- C:\Users\Admin\AppData\Local\Temp\db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe
  "C:\Users\Admin\AppData\Local\Temp\db31b33ef9ba03ebc8ad2ff4fe5ab3fb5934d92a26c2b512e784bfc34c3effc2.exe"
  2⤵
  PID:4004
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 536
    3⤵
    - Program crash
    PID:5020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4004 -ip 4004
1⤵
PID:4704

Network

MITRE ATT&CK Matrix

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Downloads

memory/3492-128-0x0000000002430000-0x000000000254B000-memory.dmp

Download

memory/3492-127-0x000000000239C000-0x000000000242E000-memory.dmp

Download

memory/4004-125-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4004-126-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4004-129-0x0000000000400000-0x0000000000537000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads