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Analysis
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max time kernel
150s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
27/06/2024, 01:23
Behavioral task
behavioral1
Sample
acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe
Resource
win10v2004-20240508-en
General
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Target
acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe
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Size
921KB
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MD5
ffb0b2a6d13a400e4e05908cfe0e677b
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SHA1
e27ecf8d074beb524219b6d9e563fc5f76cd0546
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SHA256
acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521
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SHA512
5ade0726c36bea2b02c9e9533bc166be4f3794bd78a15a814eb5be418794880c22987f434fcd51967f1c33c3550b671f257b9583121c6ef0c5f0231ccee897f3
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SSDEEP
24576:ZCW4MROxnF43olqrrcI0AilFEvxHjiQ8:ZCVMiGrrrcI0AilFEvxHj
Malware Config
Extracted
orcus
85.159.230.132:10134
0a90560fd1de4ef0859fc02bececce78
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autostart_method
Registry
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enable_keylogger
true
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install_path
%programfiles%\svhost\svhost.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\svhost.exe
Signatures
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Orcus main payload 1 IoCs
resource yara_rule behavioral2/files/0x000700000002341f-37.dat family_orcus -
Orcurs Rat Executable 2 IoCs
resource yara_rule behavioral2/memory/3888-1-0x0000000000D80000-0x0000000000E6C000-memory.dmp orcus behavioral2/files/0x000700000002341f-37.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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation svhost.exe Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation svhost.exe -
Executes dropped EXE 6 IoCs
pid Process 756 WindowsInput.exe 3928 WindowsInput.exe 2004 svhost.exe 4244 svhost.exe 3512 svhost.exe 1496 svhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files\\svhost\\svhost.exe\"" svhost.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 acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files\svhost\svhost.exe acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe File opened for modification C:\Program Files\svhost\svhost.exe acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe File created C:\Program Files\svhost\svhost.exe.config acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.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 2004 svhost.exe 2004 svhost.exe 2004 svhost.exe 1496 svhost.exe 1496 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe 2004 svhost.exe 1496 svhost.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2004 svhost.exe Token: SeDebugPrivilege 3512 svhost.exe Token: SeDebugPrivilege 1496 svhost.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2004 svhost.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3888 wrote to memory of 756 3888 acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe 81 PID 3888 wrote to memory of 756 3888 acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe 81 PID 3888 wrote to memory of 2004 3888 acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe 83 PID 3888 wrote to memory of 2004 3888 acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe 83 PID 2004 wrote to memory of 3512 2004 svhost.exe 85 PID 2004 wrote to memory of 3512 2004 svhost.exe 85 PID 2004 wrote to memory of 3512 2004 svhost.exe 85 PID 3512 wrote to memory of 1496 3512 svhost.exe 86 PID 3512 wrote to memory of 1496 3512 svhost.exe 86 PID 3512 wrote to memory of 1496 3512 svhost.exe 86 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe"C:\Users\Admin\AppData\Local\Temp\acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3888 -
C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:756
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C:\Program Files\svhost\svhost.exe"C:\Program Files\svhost\svhost.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2004 -
C:\Users\Admin\AppData\Roaming\svhost.exe"C:\Users\Admin\AppData\Roaming\svhost.exe" /launchSelfAndExit "C:\Program Files\svhost\svhost.exe" 2004 /protectFile3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3512 -
C:\Users\Admin\AppData\Roaming\svhost.exe"C:\Users\Admin\AppData\Roaming\svhost.exe" /watchProcess "C:\Program Files\svhost\svhost.exe" 2004 "/protectFile"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1496
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:3928
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C:\Program Files\svhost\svhost.exe"C:\Program Files\svhost\svhost.exe"1⤵
- Executes dropped EXE
PID:4244
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
921KB
MD5ffb0b2a6d13a400e4e05908cfe0e677b
SHA1e27ecf8d074beb524219b6d9e563fc5f76cd0546
SHA256acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521
SHA5125ade0726c36bea2b02c9e9533bc166be4f3794bd78a15a814eb5be418794880c22987f434fcd51967f1c33c3550b671f257b9583121c6ef0c5f0231ccee897f3
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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
MD54f04b24bf2236ee3540cd52bb01923b6
SHA12cf382d663b7c162311bce9898a0be9335979dc8
SHA2564d313e3cf260d872658373bfe2d6d4ba2880312cb995cbe497d6142a4a993236
SHA5120fcac32f08101bc64ff7a7688814981d0a77fc849ba094c8e14c9bc9814ee5cc26e8f3765876ae796ee29ba7c17fae3e724ea933254af05517f7e6336235a890
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Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad