Analysis
- max time kernel
93s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
07/11/2024, 02:08
General
- Target 137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe
- Size 933KB
- Sample241107-ckph3avpgr
- SHA256 137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86
Malware Config
Signatures
- Guloader family
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 6 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).
- 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\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe"C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.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\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe"C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.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 1868 -s 12323⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1868 -ip 18681⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
LangDLL.dll
System.dll
memory/1868-41-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-37-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-46-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-45-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-33-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-34-0x0000000001660000-0x00000000026FE000-memory.dmp
memory/1868-35-0x00000000771A8000-0x00000000771A9000-memory.dmp
memory/1868-36-0x00000000771C5000-0x00000000771C6000-memory.dmp
memory/1868-38-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1868-44-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-39-0x0000000001660000-0x00000000026FE000-memory.dmp
memory/1868-40-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-42-0x0000000077121000-0x0000000077241000-memory.dmp
memory/1868-43-0x0000000000401000-0x0000000000404000-memory.dmp
memory/4624-29-0x0000000004A20000-0x0000000005ABE000-memory.dmp
memory/4624-30-0x0000000077121000-0x0000000077241000-memory.dmp
memory/4624-32-0x0000000004A20000-0x0000000005ABE000-memory.dmp
memory/4624-31-0x0000000073F84000-0x0000000073F85000-memory.dmp