Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
07/11/2024, 02:56
General
- Target acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe
- Size 925KB
- Sample241107-dfcjdawnck
- SHA256 acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac
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\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe"C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.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\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe"C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.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 452 -s 12323⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 452 -ip 4521⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
LangDLL.dll
System.dll
memory/452-36-0x0000000000400000-0x0000000001654000-memory.dmp
memory/452-40-0x0000000000400000-0x0000000001654000-memory.dmp
memory/452-39-0x0000000000400000-0x0000000001654000-memory.dmp
memory/452-38-0x0000000001660000-0x0000000003E35000-memory.dmp
memory/452-37-0x0000000000400000-0x0000000001654000-memory.dmp
memory/452-33-0x0000000000400000-0x0000000001654000-memory.dmp
memory/452-35-0x0000000001660000-0x0000000003E35000-memory.dmp
memory/3940-30-0x0000000005240000-0x0000000007A15000-memory.dmp
memory/3940-34-0x0000000005240000-0x0000000007A15000-memory.dmp
memory/3940-32-0x0000000074924000-0x0000000074925000-memory.dmp
memory/3940-31-0x0000000077AC1000-0x0000000077BE1000-memory.dmp
memory/3940-29-0x0000000005240000-0x0000000007A15000-memory.dmp