Analysis
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max time kernel
149s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
20-06-2024 02:29
Behavioral task
behavioral1
Sample
57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe
Resource
win7-20231129-en
General
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Target
57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe
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Size
10.9MB
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MD5
f82c196dd344898078ddf662370c343f
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SHA1
3d16c0b5913ea39641d3e35716a7898b4495e1f2
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SHA256
57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953
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SHA512
2477b4742d8dd332e8e3ef868788fa7e8d6b81b26b72434cc485ec386b7e932e6b6dea89fe5c89b7dab8aa847809cb0281302f21463d25c17260560aa229b538
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SSDEEP
24576:kGq4MROxnFE33O3BrrcI0AilFEvxHPXoop:kuMiuMBrrcI0AilFEvxHP
Malware Config
Extracted
orcus
158.46.224.152:5552
0910294482b74b1d8edb1d40e5ed1df5
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autostart_method
TaskScheduler
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enable_keylogger
false
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install_path
%programdata%\svchost.exe
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reconnect_delay
10000
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registry_keyname
sysb
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taskscheduler_taskname
sysb
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watchdog_path
Temp\taskhostw.exe
Signatures
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Orcus main payload 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023408-48.dat family_orcus -
Orcurs Rat Executable 2 IoCs
resource yara_rule behavioral2/memory/408-1-0x0000000000410000-0x00000000004FE000-memory.dmp orcus behavioral2/files/0x0007000000023408-48.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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation 57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation svchost.exe Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation taskhostw.exe -
Executes dropped EXE 6 IoCs
pid Process 1960 WindowsInput.exe 1724 WindowsInput.exe 4812 svchost.exe 680 svchost.exe 3624 taskhostw.exe 1332 taskhostw.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\WindowsInput.InstallState WindowsInput.exe File created C:\Windows\SysWOW64\WindowsInput.exe 57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config 57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.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 4812 svchost.exe 4812 svchost.exe 4812 svchost.exe 1332 taskhostw.exe 1332 taskhostw.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe 4812 svchost.exe 1332 taskhostw.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4812 svchost.exe Token: SeDebugPrivilege 3624 taskhostw.exe Token: SeDebugPrivilege 1332 taskhostw.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4812 svchost.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 4812 svchost.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 408 wrote to memory of 1960 408 57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe 85 PID 408 wrote to memory of 1960 408 57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe 85 PID 408 wrote to memory of 4812 408 57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe 89 PID 408 wrote to memory of 4812 408 57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe 89 PID 408 wrote to memory of 4812 408 57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe 89 PID 4812 wrote to memory of 3624 4812 svchost.exe 92 PID 4812 wrote to memory of 3624 4812 svchost.exe 92 PID 4812 wrote to memory of 3624 4812 svchost.exe 92 PID 3624 wrote to memory of 1332 3624 taskhostw.exe 93 PID 3624 wrote to memory of 1332 3624 taskhostw.exe 93 PID 3624 wrote to memory of 1332 3624 taskhostw.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe"C:\Users\Admin\AppData\Local\Temp\57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:408 -
C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:1960
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C:\ProgramData\svchost.exe"C:\ProgramData\svchost.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4812 -
C:\Users\Admin\AppData\Local\Temp\taskhostw.exe"C:\Users\Admin\AppData\Local\Temp\taskhostw.exe" /launchSelfAndExit "C:\ProgramData\svchost.exe" 4812 /protectFile3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3624 -
C:\Users\Admin\AppData\Local\Temp\taskhostw.exe"C:\Users\Admin\AppData\Local\Temp\taskhostw.exe" /watchProcess "C:\ProgramData\svchost.exe" 4812 "/protectFile"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1332
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:1724
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C:\ProgramData\svchost.exeC:\ProgramData\svchost.exe1⤵
- Executes dropped EXE
PID:680
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
10.9MB
MD5f82c196dd344898078ddf662370c343f
SHA13d16c0b5913ea39641d3e35716a7898b4495e1f2
SHA25657d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953
SHA5122477b4742d8dd332e8e3ef868788fa7e8d6b81b26b72434cc485ec386b7e932e6b6dea89fe5c89b7dab8aa847809cb0281302f21463d25c17260560aa229b538
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Filesize
425B
MD54eaca4566b22b01cd3bc115b9b0b2196
SHA1e743e0792c19f71740416e7b3c061d9f1336bf94
SHA25634ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb
SHA512bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1
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Filesize
9KB
MD5913967b216326e36a08010fb70f9dba3
SHA17b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf
SHA2568d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a
SHA512c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33
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Filesize
1KB
MD5203c72c784ab5d1b04a6ca705fe2c0d6
SHA15e6b290456d968ad3eaf8484b6d3879b1308f924
SHA256ce7ecc16f071e9b108fa256e91e6e951573a8052cba76c4872206d023199cd32
SHA5121e739a48f6bb60fb329ffb0fcd9f03ba907a892e31ed6c9326bea14044bed7673d91f0930b05fe009447a3135ddefc9a804ebc7660c21817e026775da17de3ae
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Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad