Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
27/08/2024, 03:15
General
- Target e99dfc08c5ef50c923aa461264723b3c1041f1cfe76373ed42466e9d23f37f3f.exe
- Size 654KB
- Sample240827-drx98asarp
- SHA256 e99dfc08c5ef50c923aa461264723b3c1041f1cfe76373ed42466e9d23f37f3f
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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\e99dfc08c5ef50c923aa461264723b3c1041f1cfe76373ed42466e9d23f37f3f.exe"C:\Users\Admin\AppData\Local\Temp\e99dfc08c5ef50c923aa461264723b3c1041f1cfe76373ed42466e9d23f37f3f.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\e99dfc08c5ef50c923aa461264723b3c1041f1cfe76373ed42466e9d23f37f3f.exe"C:\Users\Admin\AppData\Local\Temp\e99dfc08c5ef50c923aa461264723b3c1041f1cfe76373ed42466e9d23f37f3f.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/3324-13-0x0000000004820000-0x00000000067BC000-memory.dmp
memory/3324-14-0x0000000077AD1000-0x0000000077BF1000-memory.dmp
memory/3324-15-0x0000000010004000-0x0000000010005000-memory.dmp
memory/3324-16-0x0000000004820000-0x00000000067BC000-memory.dmp
memory/3324-20-0x0000000004820000-0x00000000067BC000-memory.dmp
memory/3768-18-0x0000000001660000-0x00000000035FC000-memory.dmp
memory/3768-19-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3768-17-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3768-21-0x0000000001660000-0x00000000035FC000-memory.dmp
memory/3768-22-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3768-23-0x0000000077AD1000-0x0000000077BF1000-memory.dmp
memory/3768-24-0x0000000000400000-0x0000000001654000-memory.dmp