djvu | 6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239

Analysis

max time kernel
150s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
19/07/2026, 16:18

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General

Target
6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe
Size 787KB
Sample260719-tr73esgy7x
SHA256 6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239
MD5 4d0ceda3137040b9c750544b48bd17a7
SHA1 74b2a78c2490c573431beb57bbe88f3cccf796b3
SHA512 545ad96759b50f8811b14598822cc869ff953e7d1cb3a29811a00fbfe6c299e8e4a3df9ff82911e701ae479b4aa35e043e894d267392bf1c0a674836406f94cf
SSDEEP 24576:YtrwtBqtRBE7rHSHci247xkUhybFUckRO:Cr3Bsy8fbUHRO
TLSH
T1BF0501006AA0A893DF9507774A1ECDA8D56FBC11FB71144E3290379F68B31A1462EB7F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery djvu ransomware

Malware Config

Extracted

Family

djvu

http://cajgtus.com/test1/get.php

Attributes

extension
.bgjs
offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://cajgtus.com/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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0863PsawqS

rsa_pubkey.plain

Signatures

Family: Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Detected Djvu ransomware 2 IoCs

resource	yara_rule
behavioral2/memory/4476-2-0x0000000004A80000-0x0000000004B9B000-memory.dmp	family_djvu
behavioral2/memory/3388-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4476 set thread context of 3388	4476	6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe	89

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 3388	4476	6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe	89
PID 4476 wrote to memory of 3388	4476	6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe	89
PID 4476 wrote to memory of 3388	4476	6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe	89
PID 4476 wrote to memory of 3388	4476	6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe	89
PID 4476 wrote to memory of 3388	4476	6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe	89
PID 4476 wrote to memory of 3388	4476	6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe	89
PID 4476 wrote to memory of 3388	4476	6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe	89

C:\Users\Admin\AppData\Local\Temp\6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe
"C:\Users\Admin\AppData\Local\Temp\6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4476
- C:\Users\Admin\AppData\Local\Temp\6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe
  "C:\Users\Admin\AppData\Local\Temp\6b20888a57749e9e7bdd567daa7347e525018e32aa98d61f684f3ed9372a4239.exe"
  2⤵
  PID:3388

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3388-3-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4476-1-0x00000000031F0000-0x0000000003288000-memory.dmp

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memory/4476-2-0x0000000004A80000-0x0000000004B9B000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads