djvu | cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d

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, 15:12

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General

Target
cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe
Size 809KB
Sample260809-slbatsttbz
SHA256 cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d
MD5 bd7beb7562fbbb5d6a7773f879389d32
SHA1 993ad0a915e475bafb3833b61a36818481dd55aa
SHA512 d762255b0cb9095b72f8b4d5821559f2134c6de28e4e7072e78a42870647d9ff1375afc33d7c6b46ba7fff509ab6f4724e4842abf47eb1c1a41e72783dbf38ba
SSDEEP 12288:x1lw2NU9n4c7lB5P5ZQwshmMs5OR2aX+975V3BOh6Z5EGyjShHT0q78nDHrJ:x1lwxD7TzZQHmR5OR2aXgrRqj6HTh2
TLSH
T10105022152E0F470D1278A329E2AC7EC6A3DF8E09F557A9F27981A3F1E761E1C171319
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery djvu ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.lomx
offline_id
NrqpaQRhQqq5l2tBPp1QS34I3ME2IKsAlZ0A9pt1
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. You can get and look video overview decrypt tool: https://we.tl/t-MhbiRFXgXD 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: 0839ASdw

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/4360-2-0x0000000002910000-0x0000000002A2B000-memory.dmp	family_djvu
behavioral2/memory/5044-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4360 set thread context of 5044	4360	cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.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	cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 5044	4360	cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe	89
PID 4360 wrote to memory of 5044	4360	cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe	89
PID 4360 wrote to memory of 5044	4360	cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe	89
PID 4360 wrote to memory of 5044	4360	cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe	89
PID 4360 wrote to memory of 5044	4360	cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe	89
PID 4360 wrote to memory of 5044	4360	cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe	89
PID 4360 wrote to memory of 5044	4360	cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe	89

C:\Users\Admin\AppData\Local\Temp\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe
"C:\Users\Admin\AppData\Local\Temp\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Users\Admin\AppData\Local\Temp\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe
  "C:\Users\Admin\AppData\Local\Temp\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe"
  2⤵
  PID:5044

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/4360-1-0x0000000002640000-0x00000000026E1000-memory.dmp

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memory/4360-2-0x0000000002910000-0x0000000002A2B000-memory.dmp

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memory/5044-3-0x0000000000400000-0x0000000000537000-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