Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
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submitted
24/08/2024, 17:24
General
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Target
4.exe
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Size
839KB
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MD5
bf76a5041c41b4582e7444dbc0b04e2d
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SHA1
cea679c61f0f98311196e3e18a31f826cca4545b
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SHA256
0fd1728e3b2f1a0d7167fa0ffc110251e91657f5e6c008136eb256b2e6f34c6c
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SHA512
be12c58203d6c2e8a99ec453262fddeb1326b877ef3e6fe7fe55806b909b68f45ab84622fd0df1bfc36db52a11db696a5b6c563ec2f43705c44cbf8975dc1df2
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SSDEEP
24576:Fo3S04YNEMuExDiU6E5R9s8xY/2l/dJIbt+rc:Fot4auS+UjfU2TJIbt+r
Malware Config
Extracted
orcus
192.168.10.8
91.92.247.123
tech11.ddns.net
tech22.ddns.net
b114dc668e5545c89c2612d3974a73ab
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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
2
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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
04/04/2023 06:41:34
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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
Orcus is a Remote Access Trojan that is being sold on underground forums.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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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.
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Suspicious behavior: EnumeratesProcesses 39 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of FindShellTrayWindow 1 IoCs
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Suspicious use of SendNotifyMessage 1 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\4.exe"C:\Users\Admin\AppData\Local\Temp\4.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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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
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
839KB
MD5bf76a5041c41b4582e7444dbc0b04e2d
SHA1cea679c61f0f98311196e3e18a31f826cca4545b
SHA2560fd1728e3b2f1a0d7167fa0ffc110251e91657f5e6c008136eb256b2e6f34c6c
SHA512be12c58203d6c2e8a99ec453262fddeb1326b877ef3e6fe7fe55806b909b68f45ab84622fd0df1bfc36db52a11db696a5b6c563ec2f43705c44cbf8975dc1df2
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Filesize
7.7MB
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Filesize
40KB
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Filesize
64KB
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Filesize
1.8MB
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Filesize
96KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
5.6MB
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Filesize
96KB
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Filesize
7.7MB
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Filesize
312KB
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Filesize
304KB
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Filesize
584KB
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Filesize
4KB
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Filesize
7.7MB
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Filesize
40KB
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Filesize
864KB