djvu | 3b8d4ba0e0a7d9b823d29e03c865e38de1213b2673b2c59b7114551b97c0bba6

Analysis

max time kernel
143s
max time network
120s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
03-06-2024 03:19

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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 14 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2360-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2416-6-0x0000000004600000-0x000000000471B000-memory.dmp	family_djvu
behavioral1/memory/2360-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2360-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2360-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2600-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2600-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2600-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2600-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2600-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2600-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2600-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2600-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2600-56-0x0000000000400000-0x0000000000537000-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

Processes:

icacls.exe

pid process

2736 icacls.exe

pid	process
2736	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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fc614006-d93f-4b88-bd4f-dd726604e4ae\\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

3 api.2ip.ua
4 api.2ip.ua
9 api.2ip.ua

flow	ioc
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

description	pid	process	target process
PID 2416 set thread context of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 set thread context of 2600	2624	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 2 IoCs

Processes:

9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

pid process

2360 9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
2600 9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

pid	process
2360	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
2600	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe

Suspicious use of WriteProcessMemory 30 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:2416

C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2360

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\fc614006-d93f-4b88-bd4f-dd726604e4ae" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2736

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:2624

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:2600

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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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
69a46c62ae84564f0a655d335c7e7c02

SHA1
62b4e7a64dc8505e9b54ce3779f88378faba5d66

SHA256
adcb64ea5bad7a4dcb69b4fe010fe59843e9da8e2e95815cb54717b7cf24a404

SHA512
e7b8a238a07d1438addd01533eb40cb9f974ed00e317a9a947cc644b4b6f4accc73388cef63f44cbec162823df2e1d83ae304f550d44e70cff4145da7308199d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
bb667c14102ca52176d04cf6e9b3aefb

SHA1
86757e9dc0a3bb19405224bc028a6d5adaaa2097

SHA256
8abf31f9ddeb155474229fa701aee2d64ad73105883a12694d2a2f7254b8be21

SHA512
50617ae0926d9048429ff6b6f60f840f7c8023ca86e76275b8bcaaae27459a58cac617bb41c7f68fb27753898ad6af9c14619401f99188bcc4942dea8527e039

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

MD5
91767de471f8df1ae3859fe701cb76ec

SHA1
9341b3ec0aa3791aa4753be9ef8ea3a0101f6e4d

SHA256
4be036347de00c5851220cd39047cf1657948585593ab15bf1e93d238c45bb99

SHA512
80b366031f00522f8d220fa42311d0979e7eb8b5937573b6e7904c971962df212533632e9db7d4465160594f182a61f6632f0f9364136b4257336ab0fe1ecf8b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab13EE.tmp
Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\fc614006-d93f-4b88-bd4f-dd726604e4ae\9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
Filesize
733KB

MD5
9998879b207a0fe12c5d5b607e67b270

SHA1
c8e535203f2f8661b526317a3b77ae36a23b2760

SHA256
3b8d4ba0e0a7d9b823d29e03c865e38de1213b2673b2c59b7114551b97c0bba6

SHA512
00586e0e69824eb328e4b3cf57a866b4d03ac2aed6b8bd4421c50864182ead7341d8a104bcfe2fe68b94ade421886346a1f4ed1c90be63b5dbca9580e6509849

Download Submit
memory/2360-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2360-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2360-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2360-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2360-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2416-0-0x00000000002F0000-0x0000000000382000-memory.dmp

Filesize
584KB

Download
memory/2416-5-0x00000000002F0000-0x0000000000382000-memory.dmp

Filesize
584KB

Download
memory/2416-6-0x0000000004600000-0x000000000471B000-memory.dmp

Filesize
1.1MB

Download
memory/2600-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2600-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2600-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2600-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2600-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2600-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2600-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2600-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2600-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2624-31-0x0000000004450000-0x00000000044E2000-memory.dmp

Filesize
584KB

Download

description	pid	process	target process
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2416 wrote to memory of 2360	2416	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2360 wrote to memory of 2736	2360	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	icacls.exe
PID 2360 wrote to memory of 2736	2360	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	icacls.exe
PID 2360 wrote to memory of 2736	2360	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	icacls.exe
PID 2360 wrote to memory of 2736	2360	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	icacls.exe
PID 2360 wrote to memory of 2624	2360	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2360 wrote to memory of 2624	2360	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2360 wrote to memory of 2624	2360	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2360 wrote to memory of 2624	2360	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe
PID 2624 wrote to memory of 2600	2624	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe	9998879b207a0fe12c5d5b607e67b270_NeikiAnalytics.exe