djvu | 0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
09/02/2023, 10:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe
Size

706KB
MD5

b397b236becdf4baba1279d0586fe5d6
SHA1

24bd8f9c538f850d397bbd9ebdb7201590aa6392
SHA256

0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c
SHA512

920f0039e1a040646d6bdf6e32af38e77d2b506e8ca0b27c49722c06a644c91e1c0ff0107ee88389483851f4afe236cda56990543fd07955b93bef893fb9b920
SSDEEP

12288:chCDaLTC51/RaM+3EFYeBX8jM8hzSSzip7c5W6tqi2L+PcQA2s6uiKt8CkBF:csDN//RaMGEDZoxhz75NqvLOA2vU+

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.vvmm
offline_id
9c20OtJsXdFeF07b1IeFK5ERGv1zIb659YG380t1
payload_url
http://uaery.top/dl/build2.exe

http://bihsy.com/files/1/build3.exe
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-IiDRZpWuwI 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: 0643JOsie

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 5 IoCs

resource	yara_rule
behavioral1/memory/3668-133-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3668-134-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1116-136-0x00000000024E0000-0x00000000025FB000-memory.dmp	family_djvu
behavioral1/memory/3668-137-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3668-138-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.2ip.ua
6	api.2ip.ua
68	api.2ip.ua

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1116 set thread context of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79
PID 1116 wrote to memory of 3668	1116	0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe	79

C:\Users\Admin\AppData\Local\Temp\0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe
"C:\Users\Admin\AppData\Local\Temp\0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Users\Admin\AppData\Local\Temp\0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe
  "C:\Users\Admin\AppData\Local\Temp\0383120b65e52e38c26e0e39ab666b40f34328f4f7c4c509f86cf6d1e809c52c.exe"
  2⤵
  PID:3668

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1116-135-0x0000000002440000-0x00000000024D1000-memory.dmp

Filesize
580KB

Download
memory/1116-136-0x00000000024E0000-0x00000000025FB000-memory.dmp

Filesize
1.1MB

Download
memory/3668-133-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3668-134-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3668-137-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3668-138-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download