djvu | 3b8d4ba0e0a7d9b823d29e03c865e38de1213b2673b2c59b7114551b97c0bba6

Analysis

max time kernel
143s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
03-06-2024 03:19

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
Size

733KB
MD5

9998879b207a0fe12c5d5b607e67b270
SHA1

c8e535203f2f8661b526317a3b77ae36a23b2760
SHA256

3b8d4ba0e0a7d9b823d29e03c865e38de1213b2673b2c59b7114551b97c0bba6
SHA512

00586e0e69824eb328e4b3cf57a866b4d03ac2aed6b8bd4421c50864182ead7341d8a104bcfe2fe68b94ade421886346a1f4ed1c90be63b5dbca9580e6509849
SSDEEP

12288:eiDoXN0QJAHpQnXu/wlOX0Jsln6cWCNKJWddrr/zv5ODPeb4gsk8NIUIra:eO42KZOEJsln6H8r3v5ODeb1Wea

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

Processes:

resource	yara_rule
behavioral2/memory/1440-2-0x00000000049C0000-0x0000000004ADB000-memory.dmp	family_djvu
behavioral2/memory/3380-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3380-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3380-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3380-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3380-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-36-0x0000000000400000-0x0000000000537000-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:

9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation 9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4280 icacls.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

pid	process
4280	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\27655f9f-58d0-46e4-963a-96b7c62d4ec8\\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe\" --AutoStart"	9998879b207a0fe12c5d5b607e67b270_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.

Processes:

flow ioc

20 api.2ip.ua
4 api.2ip.ua
6 api.2ip.ua

flow	ioc
20	api.2ip.ua
4	api.2ip.ua
6	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

description	pid	process	target process
PID 1440 set thread context of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 set thread context of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.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:

9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

pid	process
3380	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
3380	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
1196	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
1196	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1440

C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3380

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\27655f9f-58d0-46e4-963a-96b7c62d4ec8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:4280

C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2936

C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:1196

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
0fe896c1fe25eb524a8b49a572503f14

SHA1
244f5ac2e4e56bd4a924814ce4ac3ae4f900f94c

SHA256
057d3ab57e61cf3b84e64d0ed324b5ab2a29b4ad2e81a107a17bb24222474e1f

SHA512
718286f53e834eaf6ba5f844980aa1695f8477262d49dee7279241c466dc118328f1e5979ffc09e76fb52a81a0d5cf1f8a96020f6ecf861c057ef0d487f366f0

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
fd3bb48f5721059184f6392a65645f8d

SHA1
3fa80f6ce97b05fa7314d0fc2c6772cbde188360

SHA256
57d2a06e839393406b53af3a595e314f678204f77a4348a2ee07e44c129de599

SHA512
cdf0d51e08dadc49eeb043d163aff9e78c6ccabd10204501e49bccb9bac01a1e222db1b354a004e362fc5824bf2b3a1a9ac92a1e48973ea10fea02efc1fc6bed

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

MD5
2cbf132c566e7a621c663e7253918cbb

SHA1
0363177e50f02ae74e1c59047270d2e72d062857

SHA256
8162b24f8c08fd3015d28fc7863123c639c03c9f2e10fcc598b9bb5ff2fcb6b7

SHA512
5919a9ff36d967bbab6713dbf3325f57af7c8fa481b08c390689ac8a72bee8924b74515515799817395b0d29baa018ecd742e9464fd00afc8f9bf9dec4cb16d8

Download Submit
C:\Users\Admin\AppData\Local\27655f9f-58d0-46e4-963a-96b7c62d4ec8\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
Filesize
733KB

MD5
9998879b207a0fe12c5d5b607e67b270

SHA1
c8e535203f2f8661b526317a3b77ae36a23b2760

SHA256
3b8d4ba0e0a7d9b823d29e03c865e38de1213b2673b2c59b7114551b97c0bba6

SHA512
00586e0e69824eb328e4b3cf57a866b4d03ac2aed6b8bd4421c50864182ead7341d8a104bcfe2fe68b94ade421886346a1f4ed1c90be63b5dbca9580e6509849

Download Submit
memory/1196-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1440-1-0x0000000004920000-0x00000000049B7000-memory.dmp

Filesize
604KB

Download
memory/1440-2-0x00000000049C0000-0x0000000004ADB000-memory.dmp

Filesize
1.1MB

Download
memory/3380-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3380-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3380-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3380-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3380-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 1440 wrote to memory of 3380	1440	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 3380 wrote to memory of 4280	3380	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	icacls.exe
PID 3380 wrote to memory of 4280	3380	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	icacls.exe
PID 3380 wrote to memory of 4280	3380	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	icacls.exe
PID 3380 wrote to memory of 2936	3380	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 3380 wrote to memory of 2936	3380	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 3380 wrote to memory of 2936	3380	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2936 wrote to memory of 1196	2936	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe