General
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Target
notepad.exe
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Size
7.7MB
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Sample
240824-jh96bazdqd
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MD5
5dc898e0f4a504cf08b3bf1121108cfd
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SHA1
ebccf6c07546640bcd6db32d99cf3e1a30a415c9
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SHA256
14cd22fbf91e4e47cd635359460b65f57ebc39b68956db35b55090890b4a2dcf
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SHA512
a0ef35d1f21ef2703c27946a57830db25b6ad7f8d01d4439021887f82198d07a4f62417c99590deb29d0c9ea4028d84f72ee37955653f63f57dfe37c90b0db02
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SSDEEP
98304:BiB2pC6XG4HNkq5UKPhc24Y1/QPldHVTgPNhV0ADXqQgpkWDRIZVMnu0jjD8ueJY:hcUG4raKu24YY7HVT4hV0AD6QgqKRgX
Behavioral task
behavioral1
Sample
notepad.exe
Resource
win7-20240704-en
Malware Config
Extracted
xworm
83.38.19.195:1603
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Install_directory
%Temp%
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install_file
Runtime Broker.exe
Targets
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Target
notepad.exe
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Size
7.7MB
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MD5
5dc898e0f4a504cf08b3bf1121108cfd
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SHA1
ebccf6c07546640bcd6db32d99cf3e1a30a415c9
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SHA256
14cd22fbf91e4e47cd635359460b65f57ebc39b68956db35b55090890b4a2dcf
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SHA512
a0ef35d1f21ef2703c27946a57830db25b6ad7f8d01d4439021887f82198d07a4f62417c99590deb29d0c9ea4028d84f72ee37955653f63f57dfe37c90b0db02
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SSDEEP
98304:BiB2pC6XG4HNkq5UKPhc24Y1/QPldHVTgPNhV0ADXqQgpkWDRIZVMnu0jjD8ueJY:hcUG4raKu24YY7HVT4hV0AD6QgqKRgX
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Detect Xworm Payload
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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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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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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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Adds Run key to start application
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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