Analysis
- max time kernel
94s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
04/06/2024, 12:04
General
- Target 82940860d0091481df6eb2a273504bd2066f83649ffd87dffe03582440a938cc.exe
- Size 586KB
- Sample240604-n8lb4afe4s
- SHA256 82940860d0091481df6eb2a273504bd2066f83649ffd87dffe03582440a938cc
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 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
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\82940860d0091481df6eb2a273504bd2066f83649ffd87dffe03582440a938cc.exe"C:\Users\Admin\AppData\Local\Temp\82940860d0091481df6eb2a273504bd2066f83649ffd87dffe03582440a938cc.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\82940860d0091481df6eb2a273504bd2066f83649ffd87dffe03582440a938cc.exe"C:\Users\Admin\AppData\Local\Temp\82940860d0091481df6eb2a273504bd2066f83649ffd87dffe03582440a938cc.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4320 -s 10803⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4320 -ip 43201⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/2976-29-0x00000000049F0000-0x0000000005738000-memory.dmp
memory/2976-24-0x00000000049F0000-0x0000000005738000-memory.dmp
memory/2976-25-0x0000000077E31000-0x0000000077F51000-memory.dmp
memory/2976-26-0x0000000010004000-0x0000000010005000-memory.dmp
memory/2976-45-0x00000000049F0000-0x0000000005738000-memory.dmp
memory/4320-31-0x0000000077ED5000-0x0000000077ED6000-memory.dmp
memory/4320-30-0x0000000077EB8000-0x0000000077EB9000-memory.dmp
memory/4320-28-0x0000000001660000-0x00000000023A8000-memory.dmp
memory/4320-44-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4320-27-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4320-46-0x0000000000401000-0x0000000000404000-memory.dmp
memory/4320-48-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4320-47-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4320-49-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4320-50-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4320-51-0x0000000000401000-0x0000000000404000-memory.dmp
memory/4320-52-0x0000000001660000-0x00000000023A8000-memory.dmp
memory/4320-53-0x0000000077E31000-0x0000000077F51000-memory.dmp