djvu | 22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4

Analysis

max time kernel
149s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
22/04/2024, 04:41

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General

Target
22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe
Size 769KB
Sample240422-fa8qqsff48
SHA256 22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4
MD5 75dbea3079c030bdac11872715504ca2
SHA1 87f40bb85eb8812b963da3454b4de90fd13f14d2
SHA512 26216a0037d4ca21e095a6dd77e8976fff8ca0f24168fc7f598fe20beb30d407e58af53c3cf17b9202933aecee4f65164bb24d3952460d2e479f55cacb9ad1f7
SSDEEP 12288:W0vMDovRhsmymlCKPCPg1XebGQ0iUV129RQd9D1oAMwog18bI28vDOEpHVT:W0jWm9RQ07V129R+DSAMng18b3MX1
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.bgzq
offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://sajdfue.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/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 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: 0864PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

resource	yara_rule
behavioral2/memory/1072-2-0x0000000004BE0000-0x0000000004CFB000-memory.dmp	family_djvu
behavioral2/memory/828-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/828-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/828-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/828-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/828-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2856-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

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

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4976	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3794a7f5-601f-4a26-b464-3fb74721855a\\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe\" --AutoStart"	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.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.

flow	ioc
17	api.2ip.ua
19	api.2ip.ua
16	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1072 set thread context of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1588 set thread context of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
828	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe
828	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe
2856	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe
2856	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 1072 wrote to memory of 828	1072	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	80
PID 828 wrote to memory of 4976	828	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	81
PID 828 wrote to memory of 4976	828	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	81
PID 828 wrote to memory of 4976	828	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	81
PID 828 wrote to memory of 1588	828	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	82
PID 828 wrote to memory of 1588	828	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	82
PID 828 wrote to memory of 1588	828	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	82
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85
PID 1588 wrote to memory of 2856	1588	22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe	85

C:\Users\Admin\AppData\Local\Temp\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe
"C:\Users\Admin\AppData\Local\Temp\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Users\Admin\AppData\Local\Temp\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe
  "C:\Users\Admin\AppData\Local\Temp\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:828
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\3794a7f5-601f-4a26-b464-3fb74721855a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4976
- - C:\Users\Admin\AppData\Local\Temp\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe
    "C:\Users\Admin\AppData\Local\Temp\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1588
  - - C:\Users\Admin\AppData\Local\Temp\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe
      "C:\Users\Admin\AppData\Local\Temp\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Size 1KB
SHA256 26931f7fea693117d081b190db0a9430d99b09475924258663d85cf43bed5ce7
MD5 fdfddca278b6963f292a46d9a61d7103
SHA1 a6466529832207b33f8f2ba85ebf39994159c046
SHA512 b6ec1eee12bea3d248eed0c1f1bbf676f1884b5043af7f699ee76b03ecf875d311a9ff9e217064ba830bd8b1a0badf456a09c4693eaabcdad8ae62e8fc8141de
MD5 SHA1 SHA512

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CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Size 724B
SHA256 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
MD5 8202a1cd02e7d69597995cabbe881a12
SHA1 8858d9d934b7aa9330ee73de6c476acf19929ff6
SHA512 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
MD5 SHA1 SHA512

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24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Size 410B
SHA256 2b82a173974d66b53b946476187baf6c8371105b2ae8e64d422e0c6fea48cac7
MD5 e04784879488b969482421266ce22c10
SHA1 bcafd41462c28fc31f9387da2cd0fdeb99b60400
SHA512 672bfb4ae409b481c1023ee127eaa772125a8986360337da30f6fbf0f7130626f951b83411298c1244374d2d956a4682d7866aefafd8d7465ba8ceecb65359aa
MD5 SHA1 SHA512

Submit Download

CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Size 392B
SHA256 a668590ec865d9686278e88eef6df32e8a62990a39aa144ea452a3773439ab09
MD5 6aee32f8b7f10cb82e10acc30089f586
SHA1 ff4d70378b4ebd00252790897a988fb67ed2d616
SHA512 3d5b2a17afb375a8653f131f3d3fbbf7b292c45e2b57a6bfbdf73081b9f80f9039a0c6f2a95604debb4e1519bf8912a6bec95eb275d7b060f50f1949ca9c51fc
MD5 SHA1 SHA512

Submit Download

22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe

Path C:\Users\Admin\AppData\Local\3794a7f5-601f-4a26-b464-3fb74721855a\22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4.exe
Size 769KB
SHA256 22284bccd045e24838f9436bac44e569941bb984ebd062f1bf4f0c67e337e3d4
MD5 75dbea3079c030bdac11872715504ca2
SHA1 87f40bb85eb8812b963da3454b4de90fd13f14d2
SHA512 26216a0037d4ca21e095a6dd77e8976fff8ca0f24168fc7f598fe20beb30d407e58af53c3cf17b9202933aecee4f65164bb24d3952460d2e479f55cacb9ad1f7
SSDEEP 12288:W0vMDovRhsmymlCKPCPg1XebGQ0iUV129RQd9D1oAMwog18bI28vDOEpHVT:W0jWm9RQ07V129R+DSAMng18b3MX1
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/828-4-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/828-15-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/828-6-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/828-3-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/828-5-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1072-1-0x0000000002EA0000-0x0000000002F37000-memory.dmp

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memory/1072-2-0x0000000004BE0000-0x0000000004CFB000-memory.dmp

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memory/1588-19-0x0000000002FE0000-0x0000000003079000-memory.dmp

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memory/2856-20-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-22-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-21-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-27-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-28-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-29-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-32-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-34-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-35-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-36-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2856-37-0x0000000000400000-0x0000000000537000-memory.dmp

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