djvu | 392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01

Analysis

max time kernel
136s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
31/05/2024, 04:35

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General

Target
392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe
Size 999KB
Sample240531-e72s1sgc55
SHA256 392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01
MD5 1e9cf3eb2c0ce99704de015db310864a
SHA1 da56e5fc60bd6d5291efb889fc7688c55b59240b
SHA512 bb762108a2c08d0d9efb43768f49428392a27494b711f523e0a578ad20286dbec4b1ec56248370310a3975c1e9eadf8467e3fb29adf6cf85b9b291db64250390
SSDEEP 24576:1z7grG22hFJZ6Zytm/V4oSpU5SbBRFdR8DlRmHrQ6:JcGjZ6ZR/V9/SbBRbysHc6
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.bowd
offline_id
oHp5e4SJxdFtxfvKYmeX06F4C5cn0EcsF5Ak9Wt1
payload_url
http://uaery.top/dl/build2.exe

http://fresherlights.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-dyi5UcwIT9 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: 0594Jhyjd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 3 IoCs

resource	yara_rule
behavioral2/memory/2152-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2152-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2152-20-0x0000000000400000-0x0000000000537000-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 2 IoCs

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

flow	ioc
3	api.2ip.ua
4	api.2ip.ua

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5044 set thread context of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2152	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe
2152	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85
PID 5044 wrote to memory of 2152	5044	392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe	85

C:\Users\Admin\AppData\Local\Temp\392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe
"C:\Users\Admin\AppData\Local\Temp\392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Users\Admin\AppData\Local\Temp\392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe
  "C:\Users\Admin\AppData\Local\Temp\392883b6115f0d0d245f76598f44769ebe54a06844f3a16431b1c2b5971fbe01.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2152

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2152-8-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2152-9-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2152-20-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/5044-2-0x0000000002D20000-0x0000000002D21000-memory.dmp

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memory/5044-0-0x0000000000400000-0x0000000002CDC000-memory.dmp

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memory/5044-1-0x0000000000400000-0x0000000002CDC000-memory.dmp

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memory/5044-3-0x0000000000400000-0x0000000002CDC000-memory.dmp

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memory/5044-5-0x0000000000400000-0x0000000002CDC000-memory.dmp

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memory/5044-6-0x0000000000401000-0x0000000000414000-memory.dmp

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memory/5044-7-0x0000000000400000-0x0000000002CDC000-memory.dmp

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memory/5044-10-0x0000000000400000-0x0000000002CDC000-memory.dmp

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