Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
17-04-2024 02:08
Static task
static1
Behavioral task
behavioral1
Sample
b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe
Resource
win7-20240221-en
General
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Target
b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe
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Size
2.6MB
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MD5
33f3bbcd5ed87efe2c67e22c39f9d505
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SHA1
897bc53886621e3ee4c327d27aa8f08e03c43c40
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SHA256
b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0
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SHA512
b0da4a17049a0d37daf0bb505be38ee0e37cb9a5efc46293d9535e3e36ad8f5956e650429409e10d2269f850f4071727c90e66176f708de9aeff27c1f1dd3e4a
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SSDEEP
24576:QAHnh+eWsN3skA4RV1Hom2KXSmHdqf0K44JzixdvW80EXLq31gEfUvWDyBFZpxxZ:Hh+ZkldoPKiYdqd6x
Malware Config
Extracted
orcus
ligeon
ligeon.ddns.net:1606
b98fb09a59c24a81b9d17a55ccf2c036
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autostart_method
Disable
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enable_keylogger
true
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install_path
%programfiles%\Orcus\Orcus.exe
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reconnect_delay
10000
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registry_keyname
Orcus
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taskscheduler_taskname
Orcus
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watchdog_path
AppData\OrcusWatchdog.exe
Signatures
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Orcurs Rat Executable 2 IoCs
resource yara_rule behavioral2/memory/4036-1-0x0000000000400000-0x00000000004EA000-memory.dmp orcus behavioral2/memory/3348-37-0x0000000000610000-0x00000000006FA000-memory.dmp orcus -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe Key value queried \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation setspn.exe Key value queried \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation setspn.exe -
Executes dropped EXE 2 IoCs
pid Process 2956 setspn.exe 2088 setspn.exe -
AutoIT Executable 4 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/4900-0-0x00000000001B0000-0x000000000045A000-memory.dmp autoit_exe behavioral2/files/0x0009000000023407-23.dat autoit_exe behavioral2/memory/2956-24-0x0000000000E50000-0x00000000010FA000-memory.dmp autoit_exe behavioral2/memory/2088-36-0x0000000000E50000-0x00000000010FA000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4900 set thread context of 4036 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 90 PID 2956 set thread context of 2344 2956 setspn.exe 97 PID 2088 set thread context of 3348 2088 setspn.exe 101 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2840 schtasks.exe 1516 schtasks.exe 2928 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 2956 setspn.exe 2956 setspn.exe 2956 setspn.exe 2956 setspn.exe 2088 setspn.exe 2088 setspn.exe 2088 setspn.exe 2088 setspn.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4036 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4036 RegSvcs.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 4900 wrote to memory of 4036 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 90 PID 4900 wrote to memory of 4036 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 90 PID 4900 wrote to memory of 4036 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 90 PID 4900 wrote to memory of 4036 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 90 PID 4900 wrote to memory of 4036 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 90 PID 4900 wrote to memory of 2840 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 91 PID 4900 wrote to memory of 2840 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 91 PID 4900 wrote to memory of 2840 4900 b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe 91 PID 2956 wrote to memory of 2344 2956 setspn.exe 97 PID 2956 wrote to memory of 2344 2956 setspn.exe 97 PID 2956 wrote to memory of 2344 2956 setspn.exe 97 PID 2956 wrote to memory of 2344 2956 setspn.exe 97 PID 2956 wrote to memory of 2344 2956 setspn.exe 97 PID 2956 wrote to memory of 1516 2956 setspn.exe 98 PID 2956 wrote to memory of 1516 2956 setspn.exe 98 PID 2956 wrote to memory of 1516 2956 setspn.exe 98 PID 2088 wrote to memory of 3348 2088 setspn.exe 101 PID 2088 wrote to memory of 3348 2088 setspn.exe 101 PID 2088 wrote to memory of 3348 2088 setspn.exe 101 PID 2088 wrote to memory of 3348 2088 setspn.exe 101 PID 2088 wrote to memory of 3348 2088 setspn.exe 101 PID 2088 wrote to memory of 2928 2088 setspn.exe 102 PID 2088 wrote to memory of 2928 2088 setspn.exe 102 PID 2088 wrote to memory of 2928 2088 setspn.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe"C:\Users\Admin\AppData\Local\Temp\b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4900 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4036
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn sfc /tr "C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe" /sc minute /mo 1 /F2⤵
- Creates scheduled task(s)
PID:2840
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C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exeC:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2956 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵PID:2344
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn sfc /tr "C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe" /sc minute /mo 1 /F2⤵
- Creates scheduled task(s)
PID:1516
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C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exeC:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2088 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵PID:3348
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn sfc /tr "C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe" /sc minute /mo 1 /F2⤵
- Creates scheduled task(s)
PID:2928
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD50672db2ef13237d5cb85075ff4915942
SHA1ad8b4d3eb5e40791c47d48b22e273486f25f663f
SHA2560a933408890369b5a178f9c30aa93d2c94f425650815cf8e8310de4e90a3b519
SHA51284ad10ba5b695567d33a52f786405a5544aa49d8d23631ba9edf3afa877c5dbd81570d15bcf74bce5d9fb1afad2117d0a4ef913b396c0d923afefe615619c84b
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Filesize
2.6MB
MD543e5ec1389908d90671b7429756e95cf
SHA1f1c3bc9c7b93ef629500250c45e6bf9238daedff
SHA256b47ee79621e1da6add4612c6c0ee1de91a8b0dd71b8aed3b27a64e8c834542d8
SHA51265aed48ddafc22773ec465eb7eb1ec1c3dea0e3bcb4ca1f61238868838a2333bcc4ae82bd4a02b4e8f1c63a47511cc304cfe1f09de060d436dff38adab3b7c91