Analysis
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max time kernel
147s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
31-12-2024 01:12
Behavioral task
behavioral1
Sample
a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe
Resource
win7-20240903-en
General
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Target
a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe
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Size
1.2MB
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MD5
582b1265abcbbdba395bd9b69ff83f0a
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SHA1
1e1dd0f95d413ffaf59f77f99439659abae97411
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SHA256
a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244
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SHA512
fc5a3e66c0b582e234d3707986790e1683660b5d54ece1b0143d15d974e07745a68846fc0cc4282963711544f98219d3a6e633714ef4213be6fd6248d9c4affb
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SSDEEP
24576:fpMS04YNEMuExDiU6E5R9s8xY/2l/d0J5dtsPxNGftBPIbt+rx:fpk4auS+UjfU2Tg5XD3PIbt+r
Malware Config
Extracted
orcus
127.0.0.1
f9b26218f0c9403a83fd44bec32fd191
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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
12/30/2024 12:18:08
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plugins
AgUFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIDIAMgA0AGQANwBlADUAOAA5ADQAZQBlADQAOQBhADkAYQBjADkAMAA5AGEAMgAxADQAMwBhADkANAAxADIAMQABBcjswb8CldcC3rcCqMa3DYpVf2wVCkcAYQBtAGUAcgAgAFYAaQBlAHcABwMxAC4AMgBBIGYAMAAxADYANgA0AGUAMAA4ADcAMQA2ADQANgAwADYAYgA5ADcANgA2AGIANwA4AGYAMQA4AGQAYQBkAGIAZQACAAAEBA==
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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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Executes dropped EXE 1 IoCs
pid Process 2860 AudioDriver.exe -
Loads dropped DLL 2 IoCs
pid Process 2340 a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe 2860 AudioDriver.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 a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AudioDriver.exe -
Suspicious behavior: EnumeratesProcesses 42 IoCs
pid Process 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe 2860 AudioDriver.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2860 AudioDriver.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2860 AudioDriver.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2340 wrote to memory of 2860 2340 a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe 30 PID 2340 wrote to memory of 2860 2340 a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe 30 PID 2340 wrote to memory of 2860 2340 a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe 30 PID 2340 wrote to memory of 2860 2340 a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe"C:\Users\Admin\AppData\Local\Temp\a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340 -
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2860
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.2MB
MD5582b1265abcbbdba395bd9b69ff83f0a
SHA11e1dd0f95d413ffaf59f77f99439659abae97411
SHA256a97b70b30a7c25db8563cc2bcf1ba8e4d80bf97d342cf04dc33056b17b3b1244
SHA512fc5a3e66c0b582e234d3707986790e1683660b5d54ece1b0143d15d974e07745a68846fc0cc4282963711544f98219d3a6e633714ef4213be6fd6248d9c4affb
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Filesize
626KB
MD5d8aec01ff14e3e7ad43a4b71e30482e4
SHA1e3015f56f17d845ec7eef11d41bbbc28cc16d096
SHA256da1d608be064555ab3d3d35e6db64527b8c44f3fa5ddd7c3ec723f80fc99736e
SHA512f5b2f4bda0cc13e1d1c541fb0caea14081ee4daffd497e31a3d4d55d5f9d85a61158b4891a6527efe623b2f32b697ac912320d9be5c0303812ca98dcc8866fcf