djvu | 0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20

Analysis

max time kernel
291s
max time network
244s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
09/05/2024, 22:36

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General

Target
0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe
Size 810KB
Sample240509-2jbcgsae4v
SHA256 0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20
MD5 0039354cdfba2b2cacf57bdbbf603bcc
SHA1 2db54779ad9e778d4cb06690379ba27f88a87cf5
SHA512 50bafb8742d6d00f24efaa64e201b931b1a5f8bb572c6149b9c7b34fd022c929a9dd81b94e2573e1d81643ed68b46c337be27811137504adbc8d0ad025702da0
SSDEEP 12288:HVw1ah5UvD+XbKwrlVCXi5eacFxGAN3ETh01WLtOHtcsliduUmvRo6vZXwz:kah2ibKAVCS54FxR3EeFJaxmvvX
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.bgzq
offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
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/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 12 IoCs

resource	yara_rule
behavioral2/memory/3028-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3028-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3028-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3028-18-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4564-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4564-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4564-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4564-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4564-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4564-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4564-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4564-38-0x0000000000400000-0x0000000000537000-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
3020	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-1-5-21-160447019-1232603106-4168707212-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\66aeb903-5fb1-4130-98ec-15936c7001ba\\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe\" --AutoStart"	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.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
1	api.2ip.ua
2	api.2ip.ua
7	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2692 set thread context of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2520 set thread context of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77

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
3028	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe
3028	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe
4564	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe
4564	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 2692 wrote to memory of 3028	2692	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	73
PID 3028 wrote to memory of 3020	3028	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	74
PID 3028 wrote to memory of 3020	3028	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	74
PID 3028 wrote to memory of 3020	3028	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	74
PID 3028 wrote to memory of 2520	3028	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	75
PID 3028 wrote to memory of 2520	3028	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	75
PID 3028 wrote to memory of 2520	3028	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	75
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77
PID 2520 wrote to memory of 4564	2520	0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe	77

C:\Users\Admin\AppData\Local\Temp\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe
"C:\Users\Admin\AppData\Local\Temp\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Users\Admin\AppData\Local\Temp\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe
  "C:\Users\Admin\AppData\Local\Temp\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3028
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\66aeb903-5fb1-4130-98ec-15936c7001ba" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3020
- - C:\Users\Admin\AppData\Local\Temp\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe
    "C:\Users\Admin\AppData\Local\Temp\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2520
  - - C:\Users\Admin\AppData\Local\Temp\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe
      "C:\Users\Admin\AppData\Local\Temp\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:4564

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 b50c616b5c29bd9611ed360a238b6b6c421d0fe3b85df331e4951aefab526b2e
MD5 5857aff0ea0365561d0f06769a04101c
SHA1 0ac570f0ec93618c5849baf94c0a167e4a706a95
SHA512 1863b40407893a4a26beaa7ae4add199676c15b633d59afb4dfd2906328b29497fdddcb0ff01b9ba77ac59c5c55511fa669b0ffd6e02bcfa2d2cc53df62390be
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 f444f5c313345484bf0a8c6e3488edd65f61a0de024b6dfe42797652f337f05c
MD5 04c5a7facdbff28daefa998330f4bd30
SHA1 74cf2affc32d01836f4c78e2760d1421ce6d6b58
SHA512 4b073c947386c8d7c0db6cd7b991a24978800d54decf3d15bd02d3625c9b1dce86dc8604a8d3ff4aa0654284eefdbe9725892852f8654409ad5fa0e2ef64b896
MD5 SHA1 SHA512

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CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Size 392B
SHA256 f4583fe30a5734a2a64ee50ce799aebb75582720f7adc04cb7a3bc9d7437151c
MD5 7b7196f34f82689529aad3ccc7cdc628
SHA1 432c90f0efca423d3373518f3ea3215359bccc1a
SHA512 4bcf78816c12ddaf23cfa33dfed5ae28de14ee8ab17784ddbeec3995ae7764c27f6084dc9042409ec4ae847d41a6317c25a819cf49525a7e7528313eeb023af8
MD5 SHA1 SHA512

Submit Download

0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe

Path C:\Users\Admin\AppData\Local\66aeb903-5fb1-4130-98ec-15936c7001ba\0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20.exe
Size 810KB
SHA256 0d06661bd388fcd557cb09069102e77c089ff5ec271ca344f3101faa4856ca20
MD5 0039354cdfba2b2cacf57bdbbf603bcc
SHA1 2db54779ad9e778d4cb06690379ba27f88a87cf5
SHA512 50bafb8742d6d00f24efaa64e201b931b1a5f8bb572c6149b9c7b34fd022c929a9dd81b94e2573e1d81643ed68b46c337be27811137504adbc8d0ad025702da0
SSDEEP 12288:HVw1ah5UvD+XbKwrlVCXi5eacFxGAN3ETh01WLtOHtcsliduUmvRo6vZXwz:kah2ibKAVCS54FxR3EeFJaxmvvX
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2692-1-0x00007FF8DF3C0000-0x00007FF8DF59B000-memory.dmp

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memory/3028-5-0x00007FF8DF3C0000-0x00007FF8DF59B000-memory.dmp

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memory/3028-18-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3028-4-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3028-2-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3028-3-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4564-22-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4564-29-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4564-30-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4564-31-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4564-34-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4564-36-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4564-37-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4564-38-0x0000000000400000-0x0000000000537000-memory.dmp

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