General
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Target
Amongus.exe
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Size
55KB
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Sample
250304-z4gc5a1te1
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MD5
5a56065a3cb76c24738719ff09686ea6
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SHA1
269254a2a77e708480d05b355348a6756cf3130e
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SHA256
98336c4a295bdf723f9972a7de8b439fdfc2b067fce7e219b48d11e9b803ca67
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SHA512
e3413dc25bd29e8e0553db27528dc2c3f3ac67bdfcd3c93e608ed8b92a5b1ddd3e16dcb0517b0becc2ed95a853b7e12dc15e92d2e0c800b3c2d581c73c4fe8ad
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SSDEEP
768:vIU44Oj5X88UOzTx4tfLFFO7mWbIwhTzkKL/t/X6snGRohJOcCouejK:vHCZNOpFO79bIw9IK5/rbO+uh
Behavioral task
behavioral1
Sample
Amongus.exe
Resource
win10v2004-20250217-en
Malware Config
Extracted
xworm
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Install_directory
%port%
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pastebin_url
https://pastebin.com/raw/GMv8QPCE
Extracted
https://github.com/charlie-60/R/raw/refs/heads/main/MasonRootkit.exe
https://raw.githubusercontent.com/ninhpn1337/Disable-Windows-Defender/main/source.bat
Targets
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Target
Amongus.exe
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Size
55KB
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MD5
5a56065a3cb76c24738719ff09686ea6
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SHA1
269254a2a77e708480d05b355348a6756cf3130e
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SHA256
98336c4a295bdf723f9972a7de8b439fdfc2b067fce7e219b48d11e9b803ca67
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SHA512
e3413dc25bd29e8e0553db27528dc2c3f3ac67bdfcd3c93e608ed8b92a5b1ddd3e16dcb0517b0becc2ed95a853b7e12dc15e92d2e0c800b3c2d581c73c4fe8ad
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SSDEEP
768:vIU44Oj5X88UOzTx4tfLFFO7mWbIwhTzkKL/t/X6snGRohJOcCouejK:vHCZNOpFO79bIw9IK5/rbO+uh
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Detect Xworm Payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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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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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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Indicator Removal: Clear Windows Event Logs
Clear Windows Event Logs to hide the activity of an intrusion.
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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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Legitimate hosting services abused for malware hosting/C2
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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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Drops file in System32 directory
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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
2Registry Run Keys / Startup Folder
2Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Indicator Removal
1Clear Windows Event Logs
1Modify Registry
3Pre-OS Boot
1Bootkit
1