djvu | c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe

General

Target
c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe
Size 768KB
Sample220406-pb17qacda9
SHA256 c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe
MD5 51f6a54d7da35e3fa4ad315a0ae61bcf
SHA1 2e59265870931a22147b315c44c6e4b46b205763
SHA512 4e4a8d6ed3ef4d05e48536c2284578e56f922332eb7fc1e6ab4f49c516ef10e7c14ef3e36f5a7e3b287818d35c648c2c8eebe9d40f08ae0e5f056bd95131bb2c
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
behavioral2/memory/4904-125-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4904-126-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4904-129-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4952-128-0x0000000002220000-0x000000000233B000-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 4952 set thread context of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2384	4904	WerFault.exe	80

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80
PID 4952 wrote to memory of 4904	4952	c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe	80

C:\Users\Admin\AppData\Local\Temp\c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe
"C:\Users\Admin\AppData\Local\Temp\c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Users\Admin\AppData\Local\Temp\c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe
  "C:\Users\Admin\AppData\Local\Temp\c20421a2e632d8bd82991594c5c8fcff34b071746266ec42093deba17ff7c8fe.exe"
  2⤵
  PID:4904
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 536
    3⤵
    - Program crash
    PID:2384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4904 -ip 4904
1⤵
PID:3404

Network

MITRE ATT&CK Matrix

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Downloads

memory/4904-125-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4904-126-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4904-129-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4952-127-0x00000000004F5000-0x0000000000586000-memory.dmp

Download

memory/4952-128-0x0000000002220000-0x000000000233B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads