Analysis
- max time kernel
112s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
14/11/2024, 20:11
General
- Target sfgsegesg.exe
- Size 840KB
- Sample241114-yyjevssfka
- SHA256 5bc3eccc25b7a8b566200307534681641b7097061f9cfd33bf4621025ff8486e
Malware Config
Extracted
-
orcus
-
bseg
-
5email-hitting.gl.at.ply.gg
-
7016723c73724de18e276dfdfeca772b
-
administration_rights_required
false
-
anti_debugger
false
-
anti_tcp_analyzer
false
-
antivm
false
-
autostart_method
1
-
change_creation_date
false
-
force_installer_administrator_privileges
false
-
hide_file
false
-
install
false
-
installation_folder
%appdata%\Microsoft\Speech\AudioDriver.exe
-
installservice
false
-
keylogger_enabled
false
-
newcreationdate
11/14/2024 21:10:47
-
plugins
AgEAAA==
-
reconnect_delay
10000
-
registry_autostart_keyname
Audio HD Driver
-
registry_hidden_autostart
false
-
set_admin_flag
false
-
tasksch_name
Audio HD Driver
-
tasksch_request_highest_privileges
false
-
try_other_autostart_onfail
false
Signatures
- Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
- Orcus family
- Disables Task Manager via registry modification
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Sets desktop wallpaper using registry 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Modifies Control Panel 2 IoCs
- Suspicious behavior: EnumeratesProcesses 55 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 6 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\sfgsegesg.exe"C:\Users\Admin\AppData\Local\Temp\sfgsegesg.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
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
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
-
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x154 0x4441⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
opus.dll
AudioDriver.exe
memory/1308-0-0x000000007455E000-0x000000007455F000-memory.dmp
memory/1308-1-0x0000000000080000-0x0000000000158000-memory.dmp
memory/1308-2-0x0000000004A40000-0x0000000004A4A000-memory.dmp
memory/1308-3-0x0000000074550000-0x0000000074D00000-memory.dmp
memory/1308-4-0x0000000005130000-0x00000000056D4000-memory.dmp
memory/1308-5-0x0000000004FC0000-0x0000000005052000-memory.dmp
memory/1308-6-0x0000000004F30000-0x0000000004F7C000-memory.dmp
memory/1308-7-0x00000000056E0000-0x0000000005746000-memory.dmp
memory/1308-10-0x0000000005BA0000-0x0000000005BEE000-memory.dmp
memory/1308-36-0x0000000074550000-0x0000000074D00000-memory.dmp
memory/4300-30-0x0000000007F50000-0x0000000008568000-memory.dmp
memory/4300-37-0x0000000074550000-0x0000000074D00000-memory.dmp
memory/4300-26-0x0000000007170000-0x000000000717A000-memory.dmp
memory/4300-29-0x0000000007920000-0x000000000792C000-memory.dmp
memory/4300-24-0x0000000006700000-0x00000000068C2000-memory.dmp
memory/4300-31-0x0000000007970000-0x0000000007982000-memory.dmp
memory/4300-32-0x00000000079D0000-0x0000000007A0C000-memory.dmp
memory/4300-33-0x0000000007A10000-0x0000000007A5C000-memory.dmp
memory/4300-34-0x0000000007BA0000-0x0000000007CAA000-memory.dmp
memory/4300-35-0x0000000008AA0000-0x0000000008FCC000-memory.dmp
memory/4300-23-0x0000000074550000-0x0000000074D00000-memory.dmp
memory/4300-25-0x0000000006670000-0x0000000006680000-memory.dmp
memory/4300-40-0x00000000086B0000-0x000000000882A000-memory.dmp
memory/4300-41-0x0000000074550000-0x0000000074D00000-memory.dmp
memory/4300-42-0x0000000074550000-0x0000000074D00000-memory.dmp
memory/4300-44-0x0000000008570000-0x000000000861A000-memory.dmp
memory/4300-45-0x0000000008620000-0x00000000086A4000-memory.dmp
memory/4300-46-0x0000000006340000-0x0000000006356000-memory.dmp
memory/4300-47-0x00000000063E0000-0x00000000063EC000-memory.dmp
memory/4300-50-0x000000000A540000-0x000000000A59E000-memory.dmp
memory/4300-22-0x0000000074550000-0x0000000074D00000-memory.dmp
memory/4300-56-0x0000000074550000-0x0000000074D00000-memory.dmp