djvu | 14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55

General

Target

14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
Size

732KB
MD5

c25a23cbca1b3accc8680a94e96f6b36
SHA1

e0a66697af5416690f4789e829b5a8d8f6c6c2da
SHA256

14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55
SHA512

6990f61b707498185c932d381412e7ede808be425e99e3fc5b788620b1cc38509961f935230856c468ff64781a9e4016d5f32aea75e3d0bcc133c917d0b1a93f
SSDEEP

12288:BXkApE317zc3uea460BciSlvjTpEDvi1nFjbWXY/cjWRcHZ34I:BXov1j0RShyviRFj6XY/igc5oI

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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 15 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1564-2-0x0000000004A20000-0x0000000004B3B000-memory.dmp	family_djvu
behavioral1/memory/4960-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4960-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4960-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4960-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4960-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4788-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4788-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4788-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4788-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4788-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4788-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4788-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4788-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4788-37-0x0000000000400000-0x0000000000537000-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:

14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

1044 icacls.exe

pid	process
1044	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\856aa93f-0563-4b28-92e9-04572a6d2694\\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe\" --AutoStart"	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.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
17 api.2ip.ua

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe

description	pid	process	target process
PID 1564 set thread context of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 set thread context of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.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:

14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe

pid	process
4960	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
4960	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
4788	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
4788	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe

C:\Users\Admin\AppData\Local\Temp\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
"C:\Users\Admin\AppData\Local\Temp\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1564

C:\Users\Admin\AppData\Local\Temp\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
"C:\Users\Admin\AppData\Local\Temp\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4960

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\856aa93f-0563-4b28-92e9-04572a6d2694" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:1044

C:\Users\Admin\AppData\Local\Temp\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
"C:\Users\Admin\AppData\Local\Temp\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3228

C:\Users\Admin\AppData\Local\Temp\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
"C:\Users\Admin\AppData\Local\Temp\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4788

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

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

MD5
be3f0a04d543b64dfc8f405ea4a5505b

SHA1
897b54fc3338a7d42f3bf579095f061da3eccb56

SHA256
90bd14730c49d9de6f5d78f7d2f744b0645a1f018e44877b83c6bab81d4531a4

SHA512
a0d8c9a7e0914cbebc67773a7acee36090c9fb0cfcadfea8c1cb606ae060d227d5cecea379b483fe8de91f3a2e6c5cdf4141f5be6979444e974ff1e3a24682b7

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
28126be717c1d2a3d5dc7ecf30f095ea

SHA1
4bca341074935b73e6218aa451d382d4aa311503

SHA256
7a7501a2cbf2fba38dfc3d8c7ffbb0125b9e7ea9d6d3cbb528d332c394fdea2c

SHA512
d728ca9b5c843d094ba492fb2a14c1cc3bec490c99d026aaaed4f77bc226744dd877f82caaf2a7369b2a636e4a920c4425560ad37e9dc09217fde575e72f5523

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

MD5
83174047392b121ef422399ec56cd9dc

SHA1
f1209cb70a071ca5d163fad2920c040de186fa7f

SHA256
fb39e168c60b27af1535932eac9d0e4d372f8fce1dcd659cf8110309538f1ffd

SHA512
3594094ebc84275e79dcfc63de35cb53f7c47d4d05ca02497155b8303f8db7f2ce618bdac8d49a98dfb18d9c9f141187ae172d434ca1a0e23d5e3bebdaa045fb

Download Submit
C:\Users\Admin\AppData\Local\856aa93f-0563-4b28-92e9-04572a6d2694\14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
Filesize
732KB

MD5
c25a23cbca1b3accc8680a94e96f6b36

SHA1
e0a66697af5416690f4789e829b5a8d8f6c6c2da

SHA256
14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55

SHA512
6990f61b707498185c932d381412e7ede808be425e99e3fc5b788620b1cc38509961f935230856c468ff64781a9e4016d5f32aea75e3d0bcc133c917d0b1a93f

Download Submit
memory/1564-2-0x0000000004A20000-0x0000000004B3B000-memory.dmp

Filesize
1.1MB

Download
memory/1564-1-0x0000000004980000-0x0000000004A14000-memory.dmp

Filesize
592KB

Download
memory/4788-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4788-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4788-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4788-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4788-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4788-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4788-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4788-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4788-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4960-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4960-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4960-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4960-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4960-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 1564 wrote to memory of 4960	1564	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 4960 wrote to memory of 1044	4960	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	icacls.exe
PID 4960 wrote to memory of 1044	4960	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	icacls.exe
PID 4960 wrote to memory of 1044	4960	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	icacls.exe
PID 4960 wrote to memory of 3228	4960	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 4960 wrote to memory of 3228	4960	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 4960 wrote to memory of 3228	4960	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe
PID 3228 wrote to memory of 4788	3228	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe	14ef50886ab781642a7df72a831ec55dfad803fa4233e97ca7c68f35a1ea8c55.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads