djvu | dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1

General

Target
dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe
Size 838KB
Sample220408-kjp27sagh8
SHA256 dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1
MD5 a15b93eb63fb0bc4153674be7d560d87
SHA1 4924695d126a88eea7fd6d5d57bbacf001641b47
SHA512 a113ed5f1900750c53fd0a61f974598b34e0726639c1d1f17aade66d66ba4ede2db566502c25972de9d8eaae5f8fbd6bcd5b8eab86e4a5201b051f8b932a166d
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/4048-125-0x0000000002220000-0x000000000233B000-memory.dmp	family_djvu
behavioral2/memory/4880-127-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4880-128-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4880-129-0x0000000000400000-0x0000000000537000-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 4048 set thread context of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3076	4880	WerFault.exe	82

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82
PID 4048 wrote to memory of 4880	4048	dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe	82

C:\Users\Admin\AppData\Local\Temp\dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe
"C:\Users\Admin\AppData\Local\Temp\dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4048
- C:\Users\Admin\AppData\Local\Temp\dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe
  "C:\Users\Admin\AppData\Local\Temp\dfddd16d58fceab9b15647b38b96d0e548f7b28270f4751f1edf4e1e5a6a4cb1.exe"
  2⤵
  PID:4880
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 536
    3⤵
    - Program crash
    PID:3076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 4880 -ip 4880
1⤵
PID:4832

Network

MITRE ATT&CK Matrix

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Downloads

memory/4048-124-0x0000000002186000-0x0000000002218000-memory.dmp

Download

memory/4048-125-0x0000000002220000-0x000000000233B000-memory.dmp

Download

memory/4880-127-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4880-128-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4880-129-0x0000000000400000-0x0000000000537000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads