General
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Target
EzFN-Manager.exe
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Size
11.3MB
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Sample
241128-c7k46a1rax
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MD5
4d909890fee721be5605f2b64bdf72fb
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SHA1
82fb1d4769025e27cda5e399ddbfb57b21e7b559
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SHA256
2abb6eefa29e46e8580cfb9f4eff67913423197ed103b694e4158e0e6ed2ba79
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SHA512
43aa1089f736c181d330e2adb1d6622d4f60ca6aac36206bc79e34e1330c945c64d139e9a59600cd17571d595cd1ed4a3f88e05b55f7abd6784f0c4eb22fc5de
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SSDEEP
196608:Sa1bPAaYyCtOPI1GIPxSYWnuOKVKxP19TjGe2g/CZqMlEkUb1zBzs:SnMPJIZSY2TKV29vGeTKZqMlEkUxzB
Static task
static1
Behavioral task
behavioral1
Sample
EzFN-Manager.exe
Resource
win7-20240903-en
Malware Config
Extracted
skuld
https://discord.com/api/webhooks/1309150098055495793/k9e9xgOw-6_C2plzzrJuXKnk0n6rjOfFwyNN15kYdvJC528Av5hMa6QHDC_kqeEBzjsS
Extracted
xworm
5.0
ezfn57.serveo.net:4782
UoXEvvukylvflHuQ
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Install_directory
%ProgramData%
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install_file
WinRar.exe
Targets
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Target
EzFN-Manager.exe
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Size
11.3MB
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MD5
4d909890fee721be5605f2b64bdf72fb
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SHA1
82fb1d4769025e27cda5e399ddbfb57b21e7b559
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SHA256
2abb6eefa29e46e8580cfb9f4eff67913423197ed103b694e4158e0e6ed2ba79
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SHA512
43aa1089f736c181d330e2adb1d6622d4f60ca6aac36206bc79e34e1330c945c64d139e9a59600cd17571d595cd1ed4a3f88e05b55f7abd6784f0c4eb22fc5de
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SSDEEP
196608:Sa1bPAaYyCtOPI1GIPxSYWnuOKVKxP19TjGe2g/CZqMlEkUb1zBzs:SnMPJIZSY2TKV29vGeTKZqMlEkUxzB
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Detect Xworm Payload
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Skuld family
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Xworm family
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Blocklisted process makes network request
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Downloads MZ/PE file
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Event Triggered Execution: Image File Execution Options Injection
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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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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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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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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Suspicious use of SetThreadContext
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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
1Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2