djvu | f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70

General

Target
f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe
Size 776KB
Sample220325-ktx6kaabcn
SHA256 f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70
MD5 be946ca054cc196d3d42ee30698b6ddd
SHA1 48815b3873e9bbb5b68be74bd5231431b5002b3a
SHA512 55465417fb3bc00a3bc870b7c8ff831ee4734ab574444d3773abd9e3516a795b8dcfebfe26f9b3d93bf432b16ee50d69d5ae92d815c5e1a0c427ad1fe2ee3621
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.mmuz
offline_id
dYUDKE4rrBmSPsf8srHMsyP40jle9uyxDDCfdxt1
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-NdDG3HIUZp 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: 0428Jsfkjn

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral2/memory/792-131-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-132-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1708-135-0x00000000022E0000-0x00000000023FB000-memory.dmp	family_djvu
behavioral2/memory/792-134-0x0000000000400000-0x0000000000537000-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 1708 set thread context of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2488	792	WerFault.exe	80

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80
PID 1708 wrote to memory of 792	1708	f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe	80

C:\Users\Admin\AppData\Local\Temp\f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe
"C:\Users\Admin\AppData\Local\Temp\f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe
  "C:\Users\Admin\AppData\Local\Temp\f2e3fa89c1a2c72ea78c4d32446221c08b30c7c3363f8248f04aa9eee2e15c70.exe"
  2⤵
  PID:792
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 792 -s 536
    3⤵
    - Program crash
    PID:2488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 792 -ip 792
1⤵
PID:2380

Network

MITRE ATT&CK Matrix

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Downloads

memory/792-131-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/792-132-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/792-134-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/1708-133-0x0000000002240000-0x00000000022D2000-memory.dmp

Download

memory/1708-135-0x00000000022E0000-0x00000000023FB000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads