General
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Target
NewTextDocument.exe.zip
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Size
1KB
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Sample
250127-27nmqazjcm
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MD5
0206983f12db26f622bbe73b165f126f
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SHA1
e71f9fc602245a337f728e27917b0b716d3828f9
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SHA256
6b81b36622febc198dbe4596349b7b781cd6b278e9db9145a2de8b14b045e128
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SHA512
296372c60204ead1709a556001fd2a932e98814d30b42771beb19cc1298f92f3823372a83c1752f49f8073ea238e60f4c5e270a85b6dba2821621e68fd6f5cfc
Static task
static1
Behavioral task
behavioral1
Sample
New Text Document.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
New Text Document.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
quasar
1.4.1
PrudaBackend
45.131.108.110:4782
8f8e6059-ac4f-4e47-8d62-3ce070083ecf
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encryption_key
D82EC4913FC5B28DDFF5AC48635D190A9342C6BD
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install_name
update.exe
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log_directory
Logs
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reconnect_delay
2500
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startup_key
Runtime Broker.exe
Extracted
quasar
1.4.1
powerstealer
192.168.56.1:4782
6760d0e9-9df9-4aba-89be-4e5ce3e92cc8
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encryption_key
057FCAF700E62ACFECC7338C474084AF9B47ABEB
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install_name
powerstealer.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Extracted
vidar
https://t.me/sc1phell
https://steamcommunity.com/profiles/76561199819539662
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0
Extracted
quasar
1.4.1
Office04
100.108.37.105:4444
127.0.0.1:4444
95a85978-c10d-4a09-935b-c02a2a18a609
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encryption_key
6FDAA03D192B9C03BF83E41A8BBF78996D321E27
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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
Quasar Client Startup
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subdirectory
SubDir
Extracted
njrat
0.7d
HacKed
hakim32.ddns.net:2000
127.0.0.1:5513
67364a37f43593883a7b70eb2426799a
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reg_key
67364a37f43593883a7b70eb2426799a
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splitter
|'|'|
Extracted
xworm
45.141.26.234:7000
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Install_directory
%ProgramData%
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install_file
Java Update(32bit).exe
Targets
-
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Target
New Text Document.exe
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Size
4KB
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MD5
a239a27c2169af388d4f5be6b52f272c
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SHA1
0feb9a0cd8c25f01d071e9b2cfc2ae7bd430318c
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SHA256
98e895f711226a32bfab152e224279d859799243845c46e550c2d32153c619fc
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SHA512
f30e1ff506cc4d729f7e24aa46e832938a5e21497f1f82f1b300d47f45dae7f1caef032237ef1f5ae9001195c43c0103e3ab787f9196c8397846c1dea8f351da
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SSDEEP
48:6r1huik0xzYGJZZJOQOulbfSqXSfbNtm:IIxcLpf6zNt
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Detect Vidar Stealer
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Detect Xworm Payload
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Njrat family
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Quasar family
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Quasar payload
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Vidar family
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Xworm family
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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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Disables Task Manager via registry modification
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Downloads MZ/PE file
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Modifies Windows Firewall
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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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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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1