Analysis
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max time kernel
98s -
max time network
137s -
platform
windows10-ltsc 2021_x64 -
resource
win10ltsc2021-20241211-en -
resource tags
arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system -
submitted
12-01-2025 13:15
Behavioral task
behavioral1
Sample
idk.exe
Resource
win10ltsc2021-20241211-en
Behavioral task
behavioral2
Sample
idk.exe
Resource
win11-20241007-en
General
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Target
idk.exe
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Size
839KB
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MD5
cc5e9089906ca9cd8c76688d62be4e1c
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SHA1
9fde92321e5939592d8eea3997b83167f232473e
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SHA256
44ad3ca81f002ab0dd559453f60ce86c7608649962c42ca2ece930ed2ff1116e
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SHA512
1e0c556a3ef3f272c0a91d0463ebf93819711fc1e3fb309b4b1f3a1f7b2358a46c6b6ec6b708074e6ae3178b5272bfb6c0581a2b58f11105d44b1ad04dfee3b3
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SSDEEP
24576:+xdS04YNEMuExDiU6E5R9s8xY/2l/d2tnIbt+rM:qP4auS+UjfU2T2dIbt+r
Malware Config
Extracted
orcus
9across-entitled.gl.at.ply.gg
1d3ad2e8915c495cbc7efe28a9032f13
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administration_rights_required
false
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anti_debugger
false
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anti_tcp_analyzer
false
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antivm
false
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autostart_method
1
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change_creation_date
false
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force_installer_administrator_privileges
false
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hide_file
false
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install
false
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installation_folder
%appdata%\Microsoft\Speech\AudioDriver.exe
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installservice
false
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keylogger_enabled
false
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newcreationdate
01/12/2025 14:14:22
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plugins
AgEAAA==
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reconnect_delay
10000
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registry_autostart_keyname
Audio HD Driver
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registry_hidden_autostart
false
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set_admin_flag
false
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tasksch_name
Audio HD Driver
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tasksch_request_highest_privileges
false
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try_other_autostart_onfail
false
Signatures
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Orcus family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2934520114-3201407646-466687995-1000\Control Panel\International\Geo\Nation idk.exe -
Executes dropped EXE 1 IoCs
pid Process 2960 AudioDriver.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini idk.exe File opened for modification C:\Windows\assembly\Desktop.ini idk.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini idk.exe File opened for modification C:\Windows\assembly\Desktop.ini idk.exe File opened for modification C:\Windows\assembly idk.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language idk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AudioDriver.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2960 AudioDriver.exe 2960 AudioDriver.exe 2960 AudioDriver.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2960 AudioDriver.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2960 AudioDriver.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 2960 AudioDriver.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4576 wrote to memory of 2960 4576 idk.exe 82 PID 4576 wrote to memory of 2960 4576 idk.exe 82 PID 4576 wrote to memory of 2960 4576 idk.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\idk.exe"C:\Users\Admin\AppData\Local\Temp\idk.exe"1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4576 -
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2960
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
839KB
MD5cc5e9089906ca9cd8c76688d62be4e1c
SHA19fde92321e5939592d8eea3997b83167f232473e
SHA25644ad3ca81f002ab0dd559453f60ce86c7608649962c42ca2ece930ed2ff1116e
SHA5121e0c556a3ef3f272c0a91d0463ebf93819711fc1e3fb309b4b1f3a1f7b2358a46c6b6ec6b708074e6ae3178b5272bfb6c0581a2b58f11105d44b1ad04dfee3b3