djvu | 5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc

General

Target
5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe
Size 776KB
Sample220404-g4bhrscbf7
SHA256 5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc
MD5 b9a6d80fe3cd3f1385675250d97df6d1
SHA1 b611e73cd360840f01fb2e489db0debe0998fa59
SHA512 56b1afea9d9dfe59760780343b713a6b217871fccc84c391234fad1e855319a7ab589ee530a994975e9a823724b8eaed6dac192a6dadb5ab77d1e24bd1ad77f0
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.udla
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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-fnn5kv33Vv 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: 0435JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral2/memory/4312-131-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4312-132-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4568-134-0x00000000021C0000-0x00000000022DB000-memory.dmp	family_djvu
behavioral2/memory/4312-135-0x0000000000400000-0x0000000000537000-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 4568 set thread context of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1480	4312	WerFault.exe	79

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79
PID 4568 wrote to memory of 4312	4568	5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe	79

C:\Users\Admin\AppData\Local\Temp\5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe
"C:\Users\Admin\AppData\Local\Temp\5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Users\Admin\AppData\Local\Temp\5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe
  "C:\Users\Admin\AppData\Local\Temp\5efb1ae4bb8bb433c72d9a5ffa3e567e9ac235eb666ce25a56035e30fb623abc.exe"
  2⤵
  PID:4312
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 536
    3⤵
    - Program crash
    PID:1480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4312 -ip 4312
1⤵
PID:1956

Network

MITRE ATT&CK Matrix

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Downloads

memory/4312-131-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4312-132-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4312-135-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4568-133-0x00000000005C7000-0x0000000000659000-memory.dmp

Download

memory/4568-134-0x00000000021C0000-0x00000000022DB000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads