General
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Target
pc raper.exe
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Size
26.1MB
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Sample
250420-cskvvazzgw
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MD5
769bf15770789de44c623b22536b9af8
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SHA1
201bc12c782591a524b76a03c815251558bc0e21
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SHA256
adfd4e9f51bcd27935f153e44b060b6978f55da9135f34cc62361dbbf2d2db57
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SHA512
5ea37c53c01596c067824c698e234b3cddbae8f37ccfe5588629e9bd68eeab3a84b9e3985899f3686d247153f19945b3155ab52899f0e7049f0375c0c8740c18
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SSDEEP
393216:c7Uy3zMOT7pkSmtK0NsDrAggcSYwybUG7Syl3SIspfXvYKiTSOQ1edHpDnWK:Q4MOSkqvAggG1QmSycIifXvzTPK
Static task
static1
Behavioral task
behavioral1
Sample
pc raper.exe
Resource
win10ltsc2021-20250314-en
Malware Config
Extracted
C:\Users\Admin\AppData\Roaming\@[email protected]
wannacry
12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw
Extracted
marsstealer
Default
kenesrakishev.net/wp-admin/admin-ajax.php
Extracted
C:\Users\Public\Documents\RGNR_5BCA9639.txt
1BKK8bsFfG3YxTd3N15GxaYfHopoThXoY4
https://tox.chat/download.html
Extracted
xworm
5.0
outside-sand.gl.at.ply.gg:31300
uGoUQjcjqoZsiRJZ
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Install_directory
%AppData%
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install_file
USB.exe
Extracted
xworm
127.0.0.1:6000
103.211.201.109:6000
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Install_directory
%AppData%
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install_file
XClient.exe
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telegram
https://api.telegram.org/bot7929370892:AAGwrX5TeyxQidZdAEm_Z6-CDvPUOQzVY1M
Extracted
44caliber
https://discord.com/api/webhooks/1146486791835230260/bE9QI2eAT_dyqn0dm7VljbMDjUklfKOXxq3ua0HOtKeG6TIgizThvorpCYQf2NEkabwH
Extracted
quasar
1.4.1
kazeku
0.tcp.ap.ngrok.io:10431
7fb11f4b-e530-407c-a46c-8834ab5c4f45
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encryption_key
2E002E0BA1D95CECCDECD8F8B383C3F7C76A7FD7
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
kazeku
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subdirectory
kazeku
Extracted
quasar
1.4.1
Stinky
ef3243fsert34.ddns.net:47820
oj42315j346ng2134.myvnc.com:47820
448b82a7-900f-48ac-b52b-73d8b9b1a9fa
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encryption_key
7A23123B6E1E0CCDB27477C6C7654C7BE2FEDE54
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install_name
sru.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
xml
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subdirectory
sru
Targets
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Target
pc raper.exe
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Size
26.1MB
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MD5
769bf15770789de44c623b22536b9af8
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SHA1
201bc12c782591a524b76a03c815251558bc0e21
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SHA256
adfd4e9f51bcd27935f153e44b060b6978f55da9135f34cc62361dbbf2d2db57
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SHA512
5ea37c53c01596c067824c698e234b3cddbae8f37ccfe5588629e9bd68eeab3a84b9e3985899f3686d247153f19945b3155ab52899f0e7049f0375c0c8740c18
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SSDEEP
393216:c7Uy3zMOT7pkSmtK0NsDrAggcSYwybUG7Syl3SIspfXvYKiTSOQ1edHpDnWK:Q4MOSkqvAggG1QmSycIifXvzTPK
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44Caliber family
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Detect Xworm Payload
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Marsstealer family
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Quasar family
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Quasar payload
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RagnarLocker
Ransomware first seen at the end of 2019, which has been used in targetted attacks against multiple companies.
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Ragnarlocker family
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Squirrelwaffle family
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Wannacry family
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XMRig Miner payload
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Xmrig family
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Xworm family
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (4184) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Squirrelwaffle payload
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Downloads MZ/PE file
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Modifies Windows Firewall
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Stops running service(s)
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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File and Directory Permissions Modification: Windows File and Directory Permissions Modification
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Power Settings
powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Power Settings
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Direct Volume Access
1File and Directory Permissions Modification
2Windows File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
2Disable or Modify System Firewall
1Indicator Removal
2File Deletion
2Modify Registry
3Pre-OS Boot
1Bootkit
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1