Analysis
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max time kernel
144s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21-09-2024 01:05
Behavioral task
behavioral1
Sample
478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe
Resource
win7-20240903-en
General
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Target
478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe
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Size
3.0MB
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MD5
832d479717feba64d070366ed01c3675
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SHA1
31e9312abaa13b1bc5aaba5b9ae9213bc53eb6ef
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SHA256
478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb
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SHA512
6407d2bf63057cbc5a94ddd6b8edefeb996c81bfd45dedc87fd044de36ac5d4be3abbeb0de6bd5898ade53b1ed370b62e3a3ca4578bfed7b4fb54a4c502538fd
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SSDEEP
49152:E8vN8QFUwqYZeM9/ZzzBjMkPUayX82+YXAypQxb9ndo9JnCmutncFf0I74gu3kM:Ei0wGGzBjryX82uypSb9ndo9JCm
Malware Config
Extracted
orcus
0.0.0.0:23210
38874e1e50484f7aa3733dd3e2f0a4f0
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autostart_method
Disable
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enable_keylogger
false
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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
Processes:
resource yara_rule behavioral2/memory/1520-1-0x0000020E1B0A0000-0x0000020E1B39A000-memory.dmp orcus C:\Program Files\Orcus\Orcus.exe orcus -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation 478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe -
Executes dropped EXE 1 IoCs
Processes:
Orcus.exepid process 1288 Orcus.exe -
Drops file in Program Files directory 3 IoCs
Processes:
478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exedescription ioc process File created C:\Program Files\Orcus\Orcus.exe 478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe File opened for modification C:\Program Files\Orcus\Orcus.exe 478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe File created C:\Program Files\Orcus\Orcus.exe.config 478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 2 IoCs
Processes:
478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exedescription pid process target process PID 1520 wrote to memory of 1288 1520 478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe Orcus.exe PID 1520 wrote to memory of 1288 1520 478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe Orcus.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe"C:\Users\Admin\AppData\Local\Temp\478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1520 -
C:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"2⤵
- Executes dropped EXE
PID:1288
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.0MB
MD5832d479717feba64d070366ed01c3675
SHA131e9312abaa13b1bc5aaba5b9ae9213bc53eb6ef
SHA256478241c86132a6eb39627abbc9689ebbb2c646cf52a75880432dc12d656671fb
SHA5126407d2bf63057cbc5a94ddd6b8edefeb996c81bfd45dedc87fd044de36ac5d4be3abbeb0de6bd5898ade53b1ed370b62e3a3ca4578bfed7b4fb54a4c502538fd
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad