djvu | 8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1

Analysis

max time kernel
150s
max time network
146s
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, 14:17

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General

Target
8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe
Size 754KB
Sample260809-rl43gagk91
SHA256 8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1
MD5 006b0167c5b8b3c99f959b97bf4ad74e
SHA1 e37bfba0c44db7d2ee2adebb5c8702dbdc7232f6
SHA512 167ff12de8e66780839c39ebf7096b7ff94a92904ba2722c9e6953e04edcb0fa9e7548208381f33f16588c0e7ef461d7391b645177601d2334ff2be1e2923ff1
SSDEEP 12288:Yt8BBMlXWdZGJWzD0MfL5ub0OpykAsjggHgrIXleJnp40TATz:TkX0ZGJWzD3L5ub0WbcgHgr/p4QATz
TLSH
T1C9F412A162F6A508E3F33C715679A6E0DA3BB8932970710C1E45EFBA2D751C2D963703
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery djvu ransomware upx

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.cdtt
offline_id
Bn3q97hwLouKbhkQRNO4SeV07gjdEQVm8NKhg0t1
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-FCWSCsjEWS Price of private key and decrypt software is $1999. Discount 50% available if you contact us first 72 hours, that's price for you is $999. 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: 0845OSkw

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/4620-3-0x00000000023A0000-0x00000000024BB000-memory.dmp	family_djvu
behavioral2/memory/1692-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4620 set thread context of 1692	4620	8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe	89

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4620-0-0x0000000000400000-0x00000000004D9000-memory.dmp	upx
behavioral2/memory/4620-8-0x0000000000400000-0x00000000004D9000-memory.dmp	upx

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	8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 1692	4620	8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe	89
PID 4620 wrote to memory of 1692	4620	8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe	89
PID 4620 wrote to memory of 1692	4620	8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe	89
PID 4620 wrote to memory of 1692	4620	8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe	89
PID 4620 wrote to memory of 1692	4620	8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe	89
PID 4620 wrote to memory of 1692	4620	8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe	89
PID 4620 wrote to memory of 1692	4620	8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe	89

C:\Users\Admin\AppData\Local\Temp\8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe
"C:\Users\Admin\AppData\Local\Temp\8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Users\Admin\AppData\Local\Temp\8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe
  "C:\Users\Admin\AppData\Local\Temp\8cdf7b60f7c75040d704536f73f64771094a4507cc5584a21bff1ef0bc97a9d1.exe"
  2⤵
  PID:1692

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/1692-4-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4620-0-0x0000000000400000-0x00000000004D9000-memory.dmp

Download

memory/4620-3-0x00000000023A0000-0x00000000024BB000-memory.dmp

Download

memory/4620-2-0x0000000000870000-0x000000000090A000-memory.dmp

Download

memory/4620-8-0x0000000000400000-0x00000000004D9000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads