djvu | 13f1b8bc39a585aaefdaf25c8335455d10c04660b0c4cfc2709dc22f1b2b34a2

Analysis

max time kernel
143s
max time network
125s
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, 18:58

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General

Target
cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe
Size 791KB
Sample240531-xmnprshf2w
SHA256 13f1b8bc39a585aaefdaf25c8335455d10c04660b0c4cfc2709dc22f1b2b34a2
MD5 cbf59617b60a36670e6245f5bdb183d0
SHA1 1b8d0e01a955fdc1cb36a957e71477891320016a
SHA512 e56aaedebdbfcfc231b3609c5bbf4e0c1f946398c24353c2c5e6a8958e469b977f3f2721be496f5e1658022824a8cc08a84f51cd82e3ff21c806c60a93622d14
SSDEEP 12288:i0arICcwWWkWlLr3AMU1WBSv73cfYhpoDp63q3JeN4VNvqfkqHz:i0ar/FkOH2HgIa3nNMkC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

resource	yara_rule
behavioral2/memory/3508-2-0x0000000003D40000-0x0000000003E5B000-memory.dmp	family_djvu
behavioral2/memory/1836-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1836-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1836-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1836-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1836-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1536-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1536-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1536-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1536-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1536-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1536-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1536-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4540-37-0x0000000000400000-0x0000000002012000-memory.dmp	family_djvu
behavioral2/memory/1536-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1536-39-0x0000000000400000-0x0000000000537000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4836	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-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\73d9d68b-8403-4e6d-89f0-3ebc8b21d3d0\\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe\" --AutoStart"	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.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
3	api.2ip.ua
4	api.2ip.ua
12	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3508 set thread context of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 4540 set thread context of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86

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
1836	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe
1836	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe
1536	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe
1536	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 3508 wrote to memory of 1836	3508	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	82
PID 1836 wrote to memory of 4836	1836	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	83
PID 1836 wrote to memory of 4836	1836	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	83
PID 1836 wrote to memory of 4836	1836	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	83
PID 1836 wrote to memory of 4540	1836	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	84
PID 1836 wrote to memory of 4540	1836	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	84
PID 1836 wrote to memory of 4540	1836	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	84
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86
PID 4540 wrote to memory of 1536	4540	cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe	86

C:\Users\Admin\AppData\Local\Temp\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3508
- C:\Users\Admin\AppData\Local\Temp\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1836
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\73d9d68b-8403-4e6d-89f0-3ebc8b21d3d0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4836
- - C:\Users\Admin\AppData\Local\Temp\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4540
  - - C:\Users\Admin\AppData\Local\Temp\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe
      "C:\Users\Admin\AppData\Local\Temp\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1536

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

Query Registry

T1012

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 c9efb2656ea070820e0a3c464ea14abb078ad357ec57b8694f49d2149b132473
MD5 e761947edb1c261e10d09a19e311430a
SHA1 9c3b4ac61aaab7ef2def86e8e156c00580f5852d
SHA512 cfb80e152f87e470ff50dbca6099ac11c0785c1f602bd6d40ff947e29d021bffeac754df266133554e6d604be040537d3499ff24886ecded2c387cfa2d5c02f6
MD5 SHA1 SHA512

Submit Download

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

Submit Download

24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Size 410B
SHA256 caa18445da821d536687937cc171f48dad67c2be5cc5da6024bf0d3d903f21ca
MD5 c2f8a3e7c84e07a11e6df3dbab5ada1d
SHA1 326a8cd455c8d66f9b96d41532cd141acf23caff
SHA512 3a69a3dc7c26397975a0c1caed12e75b9862c96b53f34d7a69298c5ed4cc2047fbe0005df7ef0ac902e504b8d2e5164d9d2c4936ce7c41f5fdaf5e88afee4142
MD5 SHA1 SHA512

Submit Download

CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Size 392B
SHA256 70e3c35c9350c3fd402144336804592dabfb0c222d2192bb3327660a73ea31df
MD5 ad4f479b66a95de208705575b0c72a7d
SHA1 c73f3cd15908aeef0824c8dbae2172a57ed62489
SHA512 01d2e028d22e1e1e234df5b04355b63bc69a2e94d21c77701d9389bad67ba39b43ea83f2f6edfe3feee93d99c5069846f711f5d56a13d9b92a381c9bebd57b6f
MD5 SHA1 SHA512

Submit Download

cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe

Path C:\Users\Admin\AppData\Local\73d9d68b-8403-4e6d-89f0-3ebc8b21d3d0\cbf59617b60a36670e6245f5bdb183d0_NeikiAnalytics.exe
Size 791KB
SHA256 13f1b8bc39a585aaefdaf25c8335455d10c04660b0c4cfc2709dc22f1b2b34a2
MD5 cbf59617b60a36670e6245f5bdb183d0
SHA1 1b8d0e01a955fdc1cb36a957e71477891320016a
SHA512 e56aaedebdbfcfc231b3609c5bbf4e0c1f946398c24353c2c5e6a8958e469b977f3f2721be496f5e1658022824a8cc08a84f51cd82e3ff21c806c60a93622d14
SSDEEP 12288:i0arICcwWWkWlLr3AMU1WBSv73cfYhpoDp63q3JeN4VNvqfkqHz:i0ar/FkOH2HgIa3nNMkC
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1536-29-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1536-35-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1536-39-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1536-22-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1536-38-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1536-36-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1536-33-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1536-30-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1536-28-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1836-3-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1836-4-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1836-6-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1836-5-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1836-19-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3508-2-0x0000000003D40000-0x0000000003E5B000-memory.dmp

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memory/3508-1-0x00000000020F0000-0x0000000002188000-memory.dmp

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memory/4540-37-0x0000000000400000-0x0000000002012000-memory.dmp

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memory/4540-23-0x0000000000400000-0x0000000002012000-memory.dmp

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