djvu | 8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b

Analysis

max time kernel
150s
max time network
126s
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, 12:00

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General

Target
8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe
Size 691KB
Sample260809-n6askszzc1
SHA256 8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b
MD5 88112987854f5a3bd04516f6a3334880
SHA1 a8c7e14800cf6d7a5140c22e6d34bb76275e38ae
SHA512 a37baad956e5bf8f57f02ea69083271aa866df10acccdedf374c66b0d072a368f1e0e9cb5c1ec0e87f8263fdc7369f033d3be814d221274ecf2986d7dfb14bdd
SSDEEP 12288:Ryxs0QrMKlM/zKo0Bjfym1Eewp7W57D56GSLM9LFZ0BMR1Dt44Sf/C7+GmZec8L7:0EyzKo0Bjpey5X5CMWMxthS/C7fcW7
TLSH
T1ACE412607AF68132F7F79A341BB4A7F00A7FB9633A74D18D22C0129E4E256C19E59317
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery djvu ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.watz
offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
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://wetransfer.com/downloads/abe121434ad837dd5bdd03878a14485820240531135509/34284d 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: 0874PsawqS

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/2528-2-0x00000000046B0000-0x00000000047CB000-memory.dmp	family_djvu
behavioral2/memory/5664-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2528 set thread context of 5664	2528	8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.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	8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 5664	2528	8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe	89
PID 2528 wrote to memory of 5664	2528	8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe	89
PID 2528 wrote to memory of 5664	2528	8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe	89
PID 2528 wrote to memory of 5664	2528	8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe	89
PID 2528 wrote to memory of 5664	2528	8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe	89
PID 2528 wrote to memory of 5664	2528	8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe	89
PID 2528 wrote to memory of 5664	2528	8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe	89

C:\Users\Admin\AppData\Local\Temp\8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe
"C:\Users\Admin\AppData\Local\Temp\8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe
  "C:\Users\Admin\AppData\Local\Temp\8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe"
  2⤵
  PID:5664

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/2528-2-0x00000000046B0000-0x00000000047CB000-memory.dmp

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memory/2528-1-0x0000000004500000-0x00000000045A1000-memory.dmp

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memory/5664-3-0x0000000000400000-0x0000000000537000-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