djvu | 1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089

Analysis

max time kernel
148s
max time network
134s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/08/2026, 11:42

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General

Target
1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe
Size 739KB
Sample260809-nt39csek6s
SHA256 1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089
MD5 9c386f0553f080254ae892482aaa46f6
SHA1 670c07b629d4c4b4afaa0e45a3d5676c3f68aaff
SHA512 e6ff14a3c37093c4fdd8db5af88481caba338372f0ba7ba641777cc75c5203f11c5093a9e11b405a1d3705acaeededdcb8b17e79972facea0beca9d6a091742c
SSDEEP 12288:NGGrgI+Ss+6DeBTd4NT5/6MesF786s9O/BWfCnBngASkQh7srb3gVyJ3:NGD5KTcT5/SsFLeyFHLkQrb3gVyJ3
TLSH
T1E6F4121273D8803AF36752744A61DA6089777C668F3359CFABD6536F1E632E2CE88305
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery djvu ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.qual
offline_id
KLbRmn6on3AXGFgDLGtd0IkHmV7uHw9VxlcxO5t1
payload_url
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. 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: 0876qual

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/5448-2-0x0000000003FB0000-0x00000000040CB000-memory.dmp	family_djvu
behavioral2/memory/4568-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5448 set thread context of 4568	5448	1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.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	1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 5448 wrote to memory of 4568	5448	1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe	89
PID 5448 wrote to memory of 4568	5448	1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe	89
PID 5448 wrote to memory of 4568	5448	1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe	89
PID 5448 wrote to memory of 4568	5448	1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe	89
PID 5448 wrote to memory of 4568	5448	1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe	89
PID 5448 wrote to memory of 4568	5448	1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe	89
PID 5448 wrote to memory of 4568	5448	1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe	89

C:\Users\Admin\AppData\Local\Temp\1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe
"C:\Users\Admin\AppData\Local\Temp\1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5448
- C:\Users\Admin\AppData\Local\Temp\1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe
  "C:\Users\Admin\AppData\Local\Temp\1b7f7b031d5c653dbedd8e6b6d42ffa38b578487e5665825372ae817ef912089.exe"
  2⤵
  PID:4568

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/4568-4-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/5448-1-0x0000000003EB0000-0x0000000003F50000-memory.dmp

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memory/5448-2-0x0000000003FB0000-0x00000000040CB000-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