djvu | 22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299

General

Target

22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
Size

716KB
MD5

2b6b52df150d245e425f056626740029
SHA1

9770b7035564b9e740f7e947e970d5a7beb0717c
SHA256

22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299
SHA512

1a5035fccdcee9f795794648012840b71519fce5fec83c9303d5b08fd128a444bb646c509a652085ad7b24c343a24b8db68d5868e0f70103b0e55bd2acb5999e
SSDEEP

12288:KHkMkHn1sDdDRu5cTgmWYNFhk+SLJnKsRKkNIO0Ydg:KHkHn1sDdNk6gnYXuJnq9

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 15 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1872-2-0x00000000049E0000-0x0000000004AFB000-memory.dmp	family_djvu
behavioral1/memory/5036-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5036-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5036-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5036-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/5036-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4216-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4216-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4216-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4216-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4216-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4216-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4216-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4216-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4216-35-0x0000000000400000-0x0000000000537000-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:

22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

5728 icacls.exe

pid	process
5728	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a623e03e-17b8-466e-b32a-c9bbd2e38069\\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe\" --AutoStart"	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.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

6 api.2ip.ua
7 api.2ip.ua
21 api.2ip.ua

flow	ioc
6	api.2ip.ua
7	api.2ip.ua
21	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe

description	pid	process	target process
PID 1872 set thread context of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 set thread context of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.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:

22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe

pid	process
5036	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
5036	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
4216	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
4216	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe

C:\Users\Admin\AppData\Local\Temp\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
"C:\Users\Admin\AppData\Local\Temp\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1872

C:\Users\Admin\AppData\Local\Temp\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
"C:\Users\Admin\AppData\Local\Temp\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5036

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\a623e03e-17b8-466e-b32a-c9bbd2e38069" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:5728

C:\Users\Admin\AppData\Local\Temp\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
"C:\Users\Admin\AppData\Local\Temp\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2044

C:\Users\Admin\AppData\Local\Temp\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
"C:\Users\Admin\AppData\Local\Temp\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4216

Network

MITRE ATT&CK Matrix ATT&CK v13

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

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
7bb5a14437331aad24915a3d8546fbc1

SHA1
9a5570c07af0c0cde02858f61e1c7094f5a70f38

SHA256
42397d9f3c8164d4cef19fc169d7bcea77a3ea7e9bcb8cfa7db2ff0bbd3a7e00

SHA512
a2333a078be981eafe3f666ff3944cd3b28279a9da99f354014d81d80e98a0effabff2a8f5ab5fba61f7de9e49e2af3112dda6b28678192a1d80d2ca22004f13

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
49e56a9c8261fac13c4ddadcf77e3481

SHA1
b1ef93b4343f5fd6f7104c850e1b5b06d54ecb8a

SHA256
da84cff21628f0569392b59bd02ab69a4d98c615739d27496c88890dd23d2ebb

SHA512
6f9407b29e18a4cc511fd7ddcde2a159dd581d4796d0ffe387d574a881faa6da3e2b9f32b8472651ee37bc50f6a0f1a03bee8287fb2f47ce9c5a88e17ad63b6a

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

MD5
3ace8ee47190258dca9f0c2a007088bd

SHA1
7c477b0122617e2a49723e354ad0ff48543a2ce5

SHA256
63ef04dfc6dee18fb8f9eea463b11c46203277c061b0bdee8cbf30ed55e82072

SHA512
568dde43a129b071f6dbd45575331068498521eec508e0e83a9ec70c3b7a0f343b733e2a3659037cd94acaab28ac5bd616de527ad66ce5fdd0f5fb6eb609fabf

Download Submit
C:\Users\Admin\AppData\Local\a623e03e-17b8-466e-b32a-c9bbd2e38069\22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
Filesize
716KB

MD5
2b6b52df150d245e425f056626740029

SHA1
9770b7035564b9e740f7e947e970d5a7beb0717c

SHA256
22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299

SHA512
1a5035fccdcee9f795794648012840b71519fce5fec83c9303d5b08fd128a444bb646c509a652085ad7b24c343a24b8db68d5868e0f70103b0e55bd2acb5999e

Download Submit
memory/1872-2-0x00000000049E0000-0x0000000004AFB000-memory.dmp

Filesize
1.1MB

Download
memory/1872-1-0x0000000004940000-0x00000000049D3000-memory.dmp

Filesize
588KB

Download
memory/4216-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4216-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4216-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4216-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4216-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4216-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4216-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4216-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4216-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5036-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5036-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5036-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5036-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5036-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 1872 wrote to memory of 5036	1872	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 5036 wrote to memory of 5728	5036	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	icacls.exe
PID 5036 wrote to memory of 5728	5036	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	icacls.exe
PID 5036 wrote to memory of 5728	5036	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	icacls.exe
PID 5036 wrote to memory of 2044	5036	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 5036 wrote to memory of 2044	5036	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 5036 wrote to memory of 2044	5036	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe
PID 2044 wrote to memory of 4216	2044	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe	22c09223dc16c6c60dd17b582d4b9372a122b1a2b3eeaf778caa3c5dc7b00299.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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