Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
18/05/2024, 10:15
General
- Target 053d7833c4436e4fa234438f53a2f0db804142a66ba3f23c637f8a827e94d93d.exe
- Size 777KB
- Sample240518-maabhaef75
- SHA256 053d7833c4436e4fa234438f53a2f0db804142a66ba3f23c637f8a827e94d93d
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
- 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 Program Files directory 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\053d7833c4436e4fa234438f53a2f0db804142a66ba3f23c637f8a827e94d93d.exe"C:\Users\Admin\AppData\Local\Temp\053d7833c4436e4fa234438f53a2f0db804142a66ba3f23c637f8a827e94d93d.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\053d7833c4436e4fa234438f53a2f0db804142a66ba3f23c637f8a827e94d93d.exe"C:\Users\Admin\AppData\Local\Temp\053d7833c4436e4fa234438f53a2f0db804142a66ba3f23c637f8a827e94d93d.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2828 -s 17803⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2828 -ip 28281⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/2828-36-0x0000000000401000-0x0000000000404000-memory.dmp
memory/2828-39-0x0000000001660000-0x0000000002779000-memory.dmp
memory/2828-41-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2828-43-0x00000000770F1000-0x0000000077211000-memory.dmp
memory/2828-17-0x0000000001660000-0x0000000002779000-memory.dmp
memory/2828-42-0x0000000000401000-0x0000000000404000-memory.dmp
memory/2828-19-0x0000000077178000-0x0000000077179000-memory.dmp
memory/2828-20-0x0000000077195000-0x0000000077196000-memory.dmp
memory/2828-40-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2828-33-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2828-16-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2828-35-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2828-37-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2828-38-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4916-34-0x0000000005130000-0x0000000006249000-memory.dmp
memory/4916-14-0x00000000770F1000-0x0000000077211000-memory.dmp
memory/4916-18-0x0000000005130000-0x0000000006249000-memory.dmp
memory/4916-13-0x0000000005130000-0x0000000006249000-memory.dmp
memory/4916-15-0x0000000073D44000-0x0000000073D45000-memory.dmp