djvu | 55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437

General

Target
55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe
Size 820KB
Sample220328-gyrb2agef2
SHA256 55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437
MD5 6d2753ee91779da9987ff57fecc766d3
SHA1 2ee830c4f01f58431fc14106e060557df347422f
SHA512 1b34ec63bd7fc59cb48bb421de401c1d063cf86b297a365c2abaeef93b48f1ad1f2ab0d352a8b14bc1978f5808cfdac39f1bfe1c941b33b30c788df122511e34
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.wdlo
offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
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-0S984cQ4B3 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: 0430JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral2/memory/1176-131-0x0000000002410000-0x000000000252B000-memory.dmp	family_djvu
behavioral2/memory/4780-133-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4780-134-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4780-135-0x0000000000400000-0x0000000000537000-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 1176 set thread context of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2708	4780	WerFault.exe	84

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84
PID 1176 wrote to memory of 4780	1176	55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe	84

C:\Users\Admin\AppData\Local\Temp\55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe
"C:\Users\Admin\AppData\Local\Temp\55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Users\Admin\AppData\Local\Temp\55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe
  "C:\Users\Admin\AppData\Local\Temp\55d8c8e92a1efdffdb85ec2276d9c4e215c1a43b077360c20f108e425a5fa437.exe"
  2⤵
  PID:4780
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4780 -s 536
    3⤵
    - Program crash
    PID:2708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4780 -ip 4780
1⤵
PID:1900

Network

MITRE ATT&CK Matrix

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Downloads

memory/1176-130-0x000000000237B000-0x000000000240C000-memory.dmp

Download

memory/1176-131-0x0000000002410000-0x000000000252B000-memory.dmp

Download

memory/4780-133-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4780-134-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4780-135-0x0000000000400000-0x0000000000537000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads