djvu | d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc

Analysis

max time kernel
150s
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, 13:51

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General

Target
d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe
Size 793KB
Sample260809-q5vgpsyfjf
SHA256 d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc
MD5 84e5ccdfbdfd9d92456c890e6d8641d4
SHA1 bc1f99c3a86a6a3258e6baa57c26be3a4403146e
SHA512 5f57e132b811e83f167f4b624397262b83982c9781dd05cba20bd2de798fcf1fd010c268060fcdf5601d5c2af1d4a61c2ff8a3ed659a25ceb6a3ef1034b8cf4c
SSDEEP 12288:wtoRocpobWxvcSJj1LT0K85JMR8LNp/tOtMqMXwe/47FXtqtAlkdyiV/M3f:wtlca6F7JHkNp/tOteXvA76Slkdyzf
TLSH
T14C05DF0392E1BD57EA2547329F2EC5FC775DB9108E0A7B9632186E3F14B0172E263B61
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery djvu ransomware

Malware Config

Extracted

Family

djvu

http://habrafa.com/test2/get.php

Attributes

extension
.lkfr
offline_id
OxV6DGl22io8sqMOW1zCCOlzPiv4f1Vqzw7Y8zt1
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: https://we.tl/t-uNdL2KHHdy 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: 0852ASdw

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/2912-2-0x00000000023E0000-0x00000000024FB000-memory.dmp	family_djvu
behavioral2/memory/4556-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 4556	2912	d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.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	d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 4556	2912	d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe	89
PID 2912 wrote to memory of 4556	2912	d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe	89
PID 2912 wrote to memory of 4556	2912	d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe	89
PID 2912 wrote to memory of 4556	2912	d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe	89
PID 2912 wrote to memory of 4556	2912	d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe	89
PID 2912 wrote to memory of 4556	2912	d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe	89
PID 2912 wrote to memory of 4556	2912	d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe	89

C:\Users\Admin\AppData\Local\Temp\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe
"C:\Users\Admin\AppData\Local\Temp\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\AppData\Local\Temp\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe
  "C:\Users\Admin\AppData\Local\Temp\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe"
  2⤵
  PID:4556

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/2912-1-0x0000000002100000-0x00000000021A0000-memory.dmp

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memory/2912-2-0x00000000023E0000-0x00000000024FB000-memory.dmp

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memory/4556-3-0x0000000000400000-0x0000000000537000-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