Analysis
- max time kernel
150s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
22/03/2024, 07:37
General
- Target b7d46522ee8c0ffe6de6103eb3f98950.exe
- Size 716KB
- Sample240322-jftesacb4t
- SHA256 85d8e92aabc31f9bfb79a57bd4b7a7c49f26f696915e92608ead565b0dbf61d7
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 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows 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\b7d46522ee8c0ffe6de6103eb3f98950.exe"C:\Users\Admin\AppData\Local\Temp\b7d46522ee8c0ffe6de6103eb3f98950.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\b7d46522ee8c0ffe6de6103eb3f98950.exe"C:\Users\Admin\AppData\Local\Temp\b7d46522ee8c0ffe6de6103eb3f98950.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3668 -s 15243⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3668 -ip 36681⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/3668-700-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-701-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-722-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-670-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-671-0x0000000077A28000-0x0000000077A29000-memory.dmp
memory/3668-672-0x0000000077A45000-0x0000000077A46000-memory.dmp
memory/3668-685-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-687-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-686-0x0000000001660000-0x000000000502D000-memory.dmp
memory/3668-688-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-689-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-690-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-691-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-692-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-693-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-694-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-695-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-721-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-697-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-698-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-719-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-699-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-696-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-702-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-703-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-704-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-705-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-706-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-707-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-708-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-709-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-711-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-712-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-710-0x0000000001660000-0x000000000502D000-memory.dmp
memory/3668-713-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-716-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-717-0x00000000779A1000-0x0000000077AC1000-memory.dmp
memory/3668-718-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3668-715-0x0000000000400000-0x0000000000443000-memory.dmp
memory/3668-720-0x0000000035680000-0x00000000359CA000-memory.dmp
memory/4984-668-0x00000000779A1000-0x0000000077AC1000-memory.dmp
memory/4984-667-0x00000000779A1000-0x0000000077AC1000-memory.dmp
memory/4984-669-0x0000000010000000-0x0000000010006000-memory.dmp