djvu | fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db

General

Target

fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
Size

749KB
MD5

405fa82f7609788bd9f49c648001b9c2
SHA1

9e92fa5a7be663de0f9cc23564b372ffd118ae8a
SHA256

fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db
SHA512

4a0ab8aca553761b176a840d0c554565e8803b5baf54d9eba7c9f4c34f3c34080c6b692db281058c9a73956d3400c52de67fedb925e58cf0aa0d87e5cf882e4e
SSDEEP

12288:oi5Qtbw7yGJV9KjAn8+fbXD6UkrW6qZzriEPnVDJoxufR4z8tCQSW:oi26yaPbXDkKZCsDJoxuJ

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.bgzq
offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
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/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 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: 0864PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

Processes:

resource	yara_rule
behavioral1/memory/5072-2-0x0000000004870000-0x000000000498B000-memory.dmp	family_djvu
behavioral1/memory/3740-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3740-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3740-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3740-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3740-12-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-18-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-31-0x0000000000400000-0x0000000000537000-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:

fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2324 icacls.exe

pid	process
2324	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\23d811f1-6b50-4e19-a4ec-03f706a57701\\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe\" --AutoStart"	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.2ip.ua
8 api.2ip.ua

flow	ioc
4	api.2ip.ua
8	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exefbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

description	pid	process	target process
PID 5072 set thread context of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 set thread context of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.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:

fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exefbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

pid	process
3740	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
3740	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
4072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
4072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exefbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exefbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

C:\Users\Admin\AppData\Local\Temp\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
"C:\Users\Admin\AppData\Local\Temp\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5072

C:\Users\Admin\AppData\Local\Temp\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
"C:\Users\Admin\AppData\Local\Temp\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3740

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\23d811f1-6b50-4e19-a4ec-03f706a57701" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2324

C:\Users\Admin\AppData\Local\Temp\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
"C:\Users\Admin\AppData\Local\Temp\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:932

C:\Users\Admin\AppData\Local\Temp\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
"C:\Users\Admin\AppData\Local\Temp\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\23d811f1-6b50-4e19-a4ec-03f706a57701\fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

Filesize
749KB

MD5
405fa82f7609788bd9f49c648001b9c2

SHA1
9e92fa5a7be663de0f9cc23564b372ffd118ae8a

SHA256
fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db

SHA512
4a0ab8aca553761b176a840d0c554565e8803b5baf54d9eba7c9f4c34f3c34080c6b692db281058c9a73956d3400c52de67fedb925e58cf0aa0d87e5cf882e4e

Download Submit
memory/3740-12-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3740-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-18-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4072-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5072-2-0x0000000004870000-0x000000000498B000-memory.dmp

Filesize
1.1MB

Download
memory/5072-1-0x0000000003030000-0x00000000030CA000-memory.dmp

Filesize
616KB

Download

description	pid	process	target process
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 5072 wrote to memory of 3740	5072	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 3740 wrote to memory of 2324	3740	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	icacls.exe
PID 3740 wrote to memory of 2324	3740	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	icacls.exe
PID 3740 wrote to memory of 2324	3740	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	icacls.exe
PID 3740 wrote to memory of 932	3740	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 3740 wrote to memory of 932	3740	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 3740 wrote to memory of 932	3740	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe
PID 932 wrote to memory of 4072	932	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe	fbc93d8d0eda6efd4ab55b387f1b1a3dda0730c6e06deeb5666f8b7ec8e6b1db.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads