General
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Target
Specter Screen Grabber.exe
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Size
11.0MB
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Sample
241201-31amysyldy
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MD5
7918234c2953a1ef45480b1224371750
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SHA1
ae40e7be6833b2d2cc54eb5f325771def35cb370
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SHA256
2daa61ed02cf604312b1d91ba8c161bb31fdff082f849eb4e5c4000d90a40388
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SHA512
ed41b069e9fe99159141a294393e8823be8f56e5ea1e89ce0f113e8d7646b9aef4d9aa80941669ff2da95a4c7c1fb378f9a9f5ea58db519e09f7f37ba9615587
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SSDEEP
196608:GKWyhmducMnCUkFuRLuId3wpguRMV/DBU9AAwy2efaTqTpXoKIlQqe0Uz/Sr/lHW:GCEQcULPWguRM9FQwFWTpXoK+wSr/lCl
Malware Config
Extracted
xworm
24.ip.gl.ply.gg:2962
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install_file
USB.exe
Targets
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Target
Specter Screen Grabber.exe
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Size
11.0MB
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MD5
7918234c2953a1ef45480b1224371750
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SHA1
ae40e7be6833b2d2cc54eb5f325771def35cb370
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SHA256
2daa61ed02cf604312b1d91ba8c161bb31fdff082f849eb4e5c4000d90a40388
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SHA512
ed41b069e9fe99159141a294393e8823be8f56e5ea1e89ce0f113e8d7646b9aef4d9aa80941669ff2da95a4c7c1fb378f9a9f5ea58db519e09f7f37ba9615587
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SSDEEP
196608:GKWyhmducMnCUkFuRLuId3wpguRMV/DBU9AAwy2efaTqTpXoKIlQqe0Uz/Sr/lHW:GCEQcULPWguRM9FQwFWTpXoK+wSr/lCl
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Detect Xworm Payload
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Xworm family
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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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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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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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
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1