Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
16-06-2024 01:10
Behavioral task
behavioral1
Sample
3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe
Resource
win7-20240221-en
General
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Target
3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe
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Size
921KB
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MD5
5dc7ba557d1063adef1eb6ddd8e0fd7e
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SHA1
0e5a33a81db4709ddfc591c8b2dc5ec1958fc0ca
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SHA256
3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d
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SHA512
2b3da40b9684d6e1aac29967ddaa1a300b59afd4b9b59b74e094c66d20cae979c9a9780c202d4e3ad96270dd06820df500b5bfb798129dbbb8cb0254f9360a56
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SSDEEP
24576:5ey4MROxnFt3/YrrcI0AilFEvxHPUooL:5aMijgrrcI0AilFEvxHP
Malware Config
Extracted
orcus
te1.tunnelin.com:58172
db6d3ae780044a5887936785b42c15ad
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autostart_method
TaskScheduler
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enable_keylogger
true
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install_path
%programdata%\Microsoft Security\ntoskrnl.exe
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reconnect_delay
10000
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registry_keyname
Windows Defender
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taskscheduler_taskname
Microsoft_Security
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watchdog_path
Temp\5BE731319AC3C9A3FBF49A732595E665F.exe
Signatures
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Orcus main payload 1 IoCs
resource yara_rule behavioral2/files/0x000700000002341e-40.dat family_orcus -
Orcurs Rat Executable 2 IoCs
resource yara_rule behavioral2/memory/4048-1-0x00000000000C0000-0x00000000001AC000-memory.dmp orcus behavioral2/files/0x000700000002341e-40.dat 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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation 3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation ntoskrnl.exe Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation 5BE731319AC3C9A3FBF49A732595E665F.exe -
Executes dropped EXE 6 IoCs
pid Process 4696 WindowsInput.exe 3740 WindowsInput.exe 4624 ntoskrnl.exe 4944 ntoskrnl.exe 2996 5BE731319AC3C9A3FBF49A732595E665F.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\WindowsInput.exe 3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config 3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe File created C:\Windows\SysWOW64\WindowsInput.InstallState WindowsInput.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4624 ntoskrnl.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe 4624 ntoskrnl.exe 2616 5BE731319AC3C9A3FBF49A732595E665F.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4624 ntoskrnl.exe Token: SeDebugPrivilege 2996 5BE731319AC3C9A3FBF49A732595E665F.exe Token: SeDebugPrivilege 2616 5BE731319AC3C9A3FBF49A732595E665F.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4624 ntoskrnl.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4048 wrote to memory of 4696 4048 3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe 85 PID 4048 wrote to memory of 4696 4048 3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe 85 PID 4048 wrote to memory of 4624 4048 3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe 87 PID 4048 wrote to memory of 4624 4048 3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe 87 PID 4048 wrote to memory of 4624 4048 3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe 87 PID 4624 wrote to memory of 2996 4624 ntoskrnl.exe 89 PID 4624 wrote to memory of 2996 4624 ntoskrnl.exe 89 PID 4624 wrote to memory of 2996 4624 ntoskrnl.exe 89 PID 2996 wrote to memory of 2616 2996 5BE731319AC3C9A3FBF49A732595E665F.exe 90 PID 2996 wrote to memory of 2616 2996 5BE731319AC3C9A3FBF49A732595E665F.exe 90 PID 2996 wrote to memory of 2616 2996 5BE731319AC3C9A3FBF49A732595E665F.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe"C:\Users\Admin\AppData\Local\Temp\3570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4048 -
C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:4696
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C:\ProgramData\Microsoft Security\ntoskrnl.exe"C:\ProgramData\Microsoft Security\ntoskrnl.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4624 -
C:\Users\Admin\AppData\Local\Temp\5BE731319AC3C9A3FBF49A732595E665F.exe"C:\Users\Admin\AppData\Local\Temp\5BE731319AC3C9A3FBF49A732595E665F.exe" /launchSelfAndExit "C:\ProgramData\Microsoft Security\ntoskrnl.exe" 4624 /protectFile3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2996 -
C:\Users\Admin\AppData\Local\Temp\5BE731319AC3C9A3FBF49A732595E665F.exe"C:\Users\Admin\AppData\Local\Temp\5BE731319AC3C9A3FBF49A732595E665F.exe" /watchProcess "C:\ProgramData\Microsoft Security\ntoskrnl.exe" 4624 "/protectFile"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2616
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:3740
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C:\ProgramData\Microsoft Security\ntoskrnl.exe"C:\ProgramData\Microsoft Security\ntoskrnl.exe"1⤵
- Executes dropped EXE
PID:4944
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
921KB
MD55dc7ba557d1063adef1eb6ddd8e0fd7e
SHA10e5a33a81db4709ddfc591c8b2dc5ec1958fc0ca
SHA2563570ab4d0875c600215d15ba9d9e439c5a61b16fb40b50c0202097dbca58ee5d
SHA5122b3da40b9684d6e1aac29967ddaa1a300b59afd4b9b59b74e094c66d20cae979c9a9780c202d4e3ad96270dd06820df500b5bfb798129dbbb8cb0254f9360a56
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5BE731319AC3C9A3FBF49A732595E665F.exe.log
Filesize425B
MD54eaca4566b22b01cd3bc115b9b0b2196
SHA1e743e0792c19f71740416e7b3c061d9f1336bf94
SHA25634ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb
SHA512bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1
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Filesize
9KB
MD5913967b216326e36a08010fb70f9dba3
SHA17b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf
SHA2568d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a
SHA512c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33
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Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad