Analysis
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max time kernel
148s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
29-11-2024 14:47
Behavioral task
behavioral1
Sample
yes.exe
Resource
win7-20241010-en
General
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Target
yes.exe
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Size
45KB
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MD5
c56ec548db6d8adab14605421dc116e3
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SHA1
1d440b7cbea0497cfcaf1dfa3f681d9a0d15a5a8
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SHA256
067884413fb4c673359b6a154e428d3f91a6bd7b5d9c98428edc5cd7e327c97b
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SHA512
c8459f677a608ff54cbb030f934f3d58636e19651d0a2e383500b80bbf9cd4c399341e34dd495afadd26ebcc1addd22bdfff2a45357939ce25c116c600e8d510
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SSDEEP
768:gdhO/poiiUcjlJInpb+Ya3H9Xqk5nWEZ5SbTDa7uI7CPW5i:Sw+jjgnsH9XqcnW85SbTGuI6
Malware Config
Extracted
xenorat
198.44.133.131
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delay
5000
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install_path
appdata
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port
13579
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startup_name
Windows CL
Signatures
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Detect XenoRat Payload 3 IoCs
resource yara_rule behavioral1/memory/2760-1-0x00000000008C0000-0x00000000008D2000-memory.dmp family_xenorat behavioral1/files/0x0008000000016d0e-4.dat family_xenorat behavioral1/memory/2212-9-0x0000000000FC0000-0x0000000000FD2000-memory.dmp family_xenorat -
Xenorat family
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Executes dropped EXE 1 IoCs
pid Process 2212 yes.exe -
Loads dropped DLL 1 IoCs
pid Process 2760 yes.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language yes.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language yes.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2896 schtasks.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2760 wrote to memory of 2212 2760 yes.exe 31 PID 2760 wrote to memory of 2212 2760 yes.exe 31 PID 2760 wrote to memory of 2212 2760 yes.exe 31 PID 2760 wrote to memory of 2212 2760 yes.exe 31 PID 2212 wrote to memory of 2896 2212 yes.exe 32 PID 2212 wrote to memory of 2896 2212 yes.exe 32 PID 2212 wrote to memory of 2896 2212 yes.exe 32 PID 2212 wrote to memory of 2896 2212 yes.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\yes.exe"C:\Users\Admin\AppData\Local\Temp\yes.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760 -
C:\Users\Admin\AppData\Roaming\XenoManager\yes.exe"C:\Users\Admin\AppData\Roaming\XenoManager\yes.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2212 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /Create /TN "Windows CL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB.tmp" /F3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2896
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5e3e27d445d0b4b3df0b60a8ef69b6654
SHA11e605620cb42844a298f5cd37def59c479910eb6
SHA256d7743f1b2a392a211164e3454f392b116177c5e01092417b35caa39cb3689c48
SHA51259998f137c840ef54a774c2c149c9a3a05f08eb0a817ff81dc95cb49496979eca8005e05a960b172fd26a424f1a88982bce61c3dc84c70809a442681b43ca0c3
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Filesize
45KB
MD5c56ec548db6d8adab14605421dc116e3
SHA11d440b7cbea0497cfcaf1dfa3f681d9a0d15a5a8
SHA256067884413fb4c673359b6a154e428d3f91a6bd7b5d9c98428edc5cd7e327c97b
SHA512c8459f677a608ff54cbb030f934f3d58636e19651d0a2e383500b80bbf9cd4c399341e34dd495afadd26ebcc1addd22bdfff2a45357939ce25c116c600e8d510