djvu | 34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939

Analysis

max time kernel
294s
max time network
300s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
18/04/2024, 22:31

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe
Size 824KB
Sample240418-2ffsssgf85
SHA256 34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939
MD5 2d1de5e1866c690b169ecb4010801f62
SHA1 535f658da46481e9393869b1a3c1fa42978138e0
SHA512 7ca0476a1d793aa399e9fc72a61a664912d804f171484df51112a1c734d162358219968bd135170a2043265f66eefdacf99140c54dbe6b9e030d38865a19cda8
SSDEEP 12288:TVhYKYDyW0MAPKflv90xc9f9mNH/OD5QZpZ1eYWA+JdqYNlGSrvB:ni+W7Ayh90WFIfWuZIi+jqY1
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.uazq
offline_id
Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1
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/df01994dd8d37c2c33469922f8e7155a20240402134014/fd95b0 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: 0860PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 16 IoCs

resource	yara_rule
behavioral2/memory/2288-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/424-3-0x00000000049E0000-0x0000000004AFB000-memory.dmp	family_djvu
behavioral2/memory/2288-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2288-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2288-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2288-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4744-38-0x0000000000400000-0x0000000000537000-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
3952	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-1-5-21-873560699-1074803302-2326074425-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3924febb-96c5-411f-a1a0-35fff93fb6fe\\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe\" --AutoStart"	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.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
10	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 424 set thread context of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 5084 set thread context of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.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
2288	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe
2288	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe
4744	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe
4744	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 424 wrote to memory of 2288	424	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	73
PID 2288 wrote to memory of 3952	2288	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	74
PID 2288 wrote to memory of 3952	2288	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	74
PID 2288 wrote to memory of 3952	2288	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	74
PID 2288 wrote to memory of 5084	2288	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	75
PID 2288 wrote to memory of 5084	2288	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	75
PID 2288 wrote to memory of 5084	2288	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	75
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77
PID 5084 wrote to memory of 4744	5084	34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe	77

C:\Users\Admin\AppData\Local\Temp\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe
"C:\Users\Admin\AppData\Local\Temp\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:424
- C:\Users\Admin\AppData\Local\Temp\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe
  "C:\Users\Admin\AppData\Local\Temp\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2288
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\3924febb-96c5-411f-a1a0-35fff93fb6fe" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3952
- - C:\Users\Admin\AppData\Local\Temp\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe
    "C:\Users\Admin\AppData\Local\Temp\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:5084
  - - C:\Users\Admin\AppData\Local\Temp\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe
      "C:\Users\Admin\AppData\Local\Temp\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:4744

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

Loading Replay Monitor...

Downloads

24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Size 1KB
SHA256 9e7216e6a933186a53c67090fe23f1849f1b3036897eddfed00313bef9370fb7
MD5 e4631530ca2d3fdd6a35f596669e54e7
SHA1 68d9ab4969b7609ee8a93fa2ae766c9781748d37
SHA512 dd58af9d8cb5e508e4d04872cb477f1cf9c04c68db87ccae04820fe351362296c5572b45ab416c08d41cb97374ceec3b0b0d28dfed750267622c5bf4dd79dad2
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 e863a479978ad3a0e5841a20297f3b8db5be7a1bea83ac9986306fad788c0555
MD5 0aa017914965d758ef0c8af15d4b4001
SHA1 dacb891371c0baaf0ccebdae73f932aa152c1562
SHA512 db834e7a28c6b301a946d8221653321121f3f82d047f3ddb07b32fc903ffb16180f57df952621aa982b4199959a2780c519bd9c06346a2fde138a7558f9afc0e
MD5 SHA1 SHA512

Submit Download

CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Size 392B
SHA256 ba4030e5e3832e3ec081ec20f120a91112c0b14aaf5715c51a8f2121c67bea25
MD5 cee90c2d9cdd0aff900fce6d6dafa668
SHA1 e5e22ebd72bb36a721b4cede8c34c5dc7b68abfd
SHA512 3c1ef1fdc2988898a7bfe1468260a07b78a98bda31ffa7a4b42aa3c51673822253dbad5abdf993a9579f727721040f86e3fec6a1c6818caf821a0e9848cb6ec2
MD5 SHA1 SHA512

Submit Download

34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe

Path C:\Users\Admin\AppData\Local\3924febb-96c5-411f-a1a0-35fff93fb6fe\34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939.exe
Size 824KB
SHA256 34e7290bae98aa9b4a066544783a1f80cb025f66215e650ae2692c581ffe0939
MD5 2d1de5e1866c690b169ecb4010801f62
SHA1 535f658da46481e9393869b1a3c1fa42978138e0
SHA512 7ca0476a1d793aa399e9fc72a61a664912d804f171484df51112a1c734d162358219968bd135170a2043265f66eefdacf99140c54dbe6b9e030d38865a19cda8
SSDEEP 12288:TVhYKYDyW0MAPKflv90xc9f9mNH/OD5QZpZ1eYWA+JdqYNlGSrvB:ni+W7Ayh90WFIfWuZIi+jqY1
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/424-3-0x00000000049E0000-0x0000000004AFB000-memory.dmp

Download

memory/424-1-0x0000000002F60000-0x0000000002FFE000-memory.dmp

Download

memory/2288-6-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/2288-17-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/2288-4-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/2288-2-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/2288-5-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-24-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-23-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-22-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-29-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-30-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-31-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-34-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-37-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-36-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4744-38-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/5084-20-0x0000000004970000-0x0000000004A10000-memory.dmp

Download