djvu | efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047

General

Target
efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe
Size 774KB
Sample220328-g4xe8sgfb2
SHA256 efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047
MD5 8994b6b42a7aac42c8552b52679b7e6e
SHA1 e9272a55947c32a49ffee059b6ac74e6a6ce5af7
SHA512 24fde45e6a5e5c82f946d08ec02e3c1d2ba87d34086f10e1f8cc5b4e84e936f1d6a51afa9cadd1b62f096376cb7edec289fc01d4601aadeef6fb4deb9ccbc4f0
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.kxde
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: 0433JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral2/memory/2028-134-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2028-135-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2028-137-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/224-138-0x0000000002400000-0x000000000251B000-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 224 set thread context of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3656	2028	WerFault.exe	79

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79
PID 224 wrote to memory of 2028	224	efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe	79

C:\Users\Admin\AppData\Local\Temp\efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe
"C:\Users\Admin\AppData\Local\Temp\efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:224
- C:\Users\Admin\AppData\Local\Temp\efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe
  "C:\Users\Admin\AppData\Local\Temp\efffa644226568072ebabf09f621d71fb64e5a8f17d23c0586c544e1c71f7047.exe"
  2⤵
  PID:2028
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 536
    3⤵
    - Program crash
    PID:3656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2028 -ip 2028
1⤵
PID:3112

Network

MITRE ATT&CK Matrix

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Downloads

memory/224-136-0x0000000002270000-0x0000000002301000-memory.dmp

Download

memory/224-138-0x0000000002400000-0x000000000251B000-memory.dmp

Download

memory/2028-134-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/2028-135-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/2028-137-0x0000000000400000-0x0000000000537000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads