djvu | 33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01

General

Target

33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
Size

797KB
MD5

ee7a294a9688bbe8a98117b296af3171
SHA1

3298b9e14d9cec8a7155605315df20594ee152f1
SHA256

33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01
SHA512

e7a2bdb98ea79d856bf9e1d92960891de51530a86f9f5a1312063b911a91f69e894285183f5b7b1334c15650363d48a6976b20846fde19350c08dcc35405697e
SSDEEP

12288:Ud2rnaFF0ZORZwZ+dGMiSdrft8MVad9M8CLVdPHg9E8Eo7c1M:UdosD37MMiSNF8MV49sdI9qog1

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vehu
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://cajgtus.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. 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/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 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: 0872PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 16 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1412-2-0x0000000003D50000-0x0000000003E6B000-memory.dmp	family_djvu
behavioral1/memory/1664-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1664-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1664-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1664-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1664-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5076-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5076-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5076-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5076-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5076-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5076-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5076-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3112-37-0x0000000000400000-0x0000000002013000-memory.dmp	family_djvu
behavioral1/memory/5076-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5076-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2884 icacls.exe

pid	process
2884	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\03a44f09-0ead-4f70-82ed-ce75c9a522ad\\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe\" --AutoStart"	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 api.2ip.ua
4 api.2ip.ua
12 api.2ip.ua

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

description	pid	process	target process
PID 1412 set thread context of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 set thread context of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

pid	process
1664	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
1664	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
5076	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
5076	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

C:\Users\Admin\AppData\Local\Temp\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
"C:\Users\Admin\AppData\Local\Temp\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1412

C:\Users\Admin\AppData\Local\Temp\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
"C:\Users\Admin\AppData\Local\Temp\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1664

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\03a44f09-0ead-4f70-82ed-ce75c9a522ad" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2884

C:\Users\Admin\AppData\Local\Temp\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
"C:\Users\Admin\AppData\Local\Temp\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3112

C:\Users\Admin\AppData\Local\Temp\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
"C:\Users\Admin\AppData\Local\Temp\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:5076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
1KB

MD5
9e130b50184e39e32205c9dd3befee15

SHA1
150b8bfb3208d3a854996e02c1470d81530335b5

SHA256
7b5bd8bc8ac2cd655c212c4790e5d9a259046730a9f0bb51616b036da55d2c50

SHA512
3cf76690e692c874792fa99d6358ebdd3596bab33bede653067375fc7de617eb7f150f52e640d34b2d51dcbe39c5bb88381bdc0279054ab65d5f1492d89f648f

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
410B

MD5
9d8ed62e68786248dd89a296d85ad629

SHA1
403214fe6c026e8de35433afaa67d1de11de3278

SHA256
46a8375c9bae2f2875a0db77d5430dd5adf8c006a47c188ec17865c1dd260f3c

SHA512
74cd50f3fc49203a497f2a921caf978637aca79ee38ee69b057cb30f7e617657e2136a10123a6e8e5ba23d5e43f9fb10a9eec4ee4797b231974b6e80ba08d193

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
392B

MD5
23ed0470bfcc9114ec76f73c5a7c98bf

SHA1
72b3f34c64c01f1075bb64cc6b4c0e7d600afac6

SHA256
4c6df22264b97503ae2cfcb17cba8fe9c8181b3ca73a884122c92960a19a26e1

SHA512
367ad4a27a2235ab43d6a99cb08e9201031255611442264fb05ef0fddb44adfa5a0683d73845d3ec67ef476a38af9cde73fa105d03227dbb57dd5f9d305f5a10

Download Submit
C:\Users\Admin\AppData\Local\03a44f09-0ead-4f70-82ed-ce75c9a522ad\33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
Filesize
797KB

MD5
ee7a294a9688bbe8a98117b296af3171

SHA1
3298b9e14d9cec8a7155605315df20594ee152f1

SHA256
33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01

SHA512
e7a2bdb98ea79d856bf9e1d92960891de51530a86f9f5a1312063b911a91f69e894285183f5b7b1334c15650363d48a6976b20846fde19350c08dcc35405697e

Download Submit
memory/1412-2-0x0000000003D50000-0x0000000003E6B000-memory.dmp

Filesize
1.1MB

Download
memory/1412-1-0x0000000002310000-0x00000000023A3000-memory.dmp

Filesize
588KB

Download
memory/1664-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1664-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1664-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1664-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1664-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3112-37-0x0000000000400000-0x0000000002013000-memory.dmp

Filesize
28.1MB

Download
memory/3112-23-0x0000000000400000-0x0000000002013000-memory.dmp

Filesize
28.1MB

Download
memory/5076-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5076-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5076-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5076-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5076-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5076-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5076-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5076-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5076-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1412 wrote to memory of 1664	1412	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1664 wrote to memory of 2884	1664	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	icacls.exe
PID 1664 wrote to memory of 2884	1664	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	icacls.exe
PID 1664 wrote to memory of 2884	1664	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	icacls.exe
PID 1664 wrote to memory of 3112	1664	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1664 wrote to memory of 3112	1664	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 1664 wrote to memory of 3112	1664	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe
PID 3112 wrote to memory of 5076	3112	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe	33b66eecf301a4bd47d2506a85f4662c9c1ee8d146b4a48766fe9ae978812b01.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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