Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
09/05/2024, 10:05
General
- Target 73fbcba5b46a4335d5baa96f30210fb1aae96faf0c5ef80b5254b3bdaba922da.exe
- Size 488KB
- Sample240509-l4pgvaeh85
- SHA256 73fbcba5b46a4335d5baa96f30210fb1aae96faf0c5ef80b5254b3bdaba922da
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\73fbcba5b46a4335d5baa96f30210fb1aae96faf0c5ef80b5254b3bdaba922da.exe"C:\Users\Admin\AppData\Local\Temp\73fbcba5b46a4335d5baa96f30210fb1aae96faf0c5ef80b5254b3bdaba922da.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\73fbcba5b46a4335d5baa96f30210fb1aae96faf0c5ef80b5254b3bdaba922da.exe"C:\Users\Admin\AppData\Local\Temp\73fbcba5b46a4335d5baa96f30210fb1aae96faf0c5ef80b5254b3bdaba922da.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1048 -s 10563⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 1048 -ip 10481⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/1048-82-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1048-66-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1048-67-0x0000000001660000-0x0000000002F90000-memory.dmp
memory/1048-68-0x0000000077938000-0x0000000077939000-memory.dmp
memory/1048-69-0x0000000077955000-0x0000000077956000-memory.dmp
memory/1048-84-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1048-86-0x00000000778B1000-0x00000000779D1000-memory.dmp
memory/1048-85-0x0000000001660000-0x0000000002F90000-memory.dmp
memory/2928-64-0x00000000778B1000-0x00000000779D1000-memory.dmp
memory/2928-65-0x0000000010004000-0x0000000010005000-memory.dmp
memory/2928-83-0x0000000004370000-0x0000000005CA0000-memory.dmp
memory/2928-63-0x0000000004370000-0x0000000005CA0000-memory.dmp