Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
24/10/2024, 15:47
General
- Target Device/HarddiskVolume4/Users/belia.peso.IBEROSTARHV.000/AppData/Local/Temp/Rar$EXa7092.35635/factura 563423.exe
- Size 901KB
- Sample241024-s77adswhlp
- SHA256 057e7554f7a499adfd2c0a3485675fef4f602b23e2e0a1fd4e07da5b993e4ebf
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 2 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Drops file in System32 directory 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume4\Users\belia.peso.IBEROSTARHV.000\AppData\Local\Temp\Rar$EXa7092.35635\factura 563423.exe"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume4\Users\belia.peso.IBEROSTARHV.000\AppData\Local\Temp\Rar$EXa7092.35635\factura 563423.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume4\Users\belia.peso.IBEROSTARHV.000\AppData\Local\Temp\Rar$EXa7092.35635\factura 563423.exe"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume4\Users\belia.peso.IBEROSTARHV.000\AppData\Local\Temp\Rar$EXa7092.35635\factura 563423.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1140 -s 17803⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1140 -ip 11401⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/1140-24668-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1140-24666-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1140-24673-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1140-24672-0x0000000001660000-0x0000000002ECB000-memory.dmp
memory/1140-24648-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1140-24649-0x0000000001660000-0x0000000002ECB000-memory.dmp
memory/1140-24650-0x0000000077DC8000-0x0000000077DC9000-memory.dmp
memory/1140-24651-0x0000000077DE5000-0x0000000077DE6000-memory.dmp
memory/1140-24664-0x0000000001660000-0x0000000002ECB000-memory.dmp
memory/1140-24671-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1140-24665-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1140-24667-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1140-24669-0x0000000077D41000-0x0000000077E61000-memory.dmp
memory/1140-24670-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4600-24644-0x0000000003300000-0x0000000004B6B000-memory.dmp
memory/4600-24645-0x0000000077D41000-0x0000000077E61000-memory.dmp
memory/4600-24647-0x0000000003300000-0x0000000004B6B000-memory.dmp
memory/4600-24646-0x0000000010004000-0x0000000010005000-memory.dmp