Analysis
- max time kernel
146s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
02/05/2024, 01:21
General
- Target d4be2f3cfa3365cf4b7d567839a2d31f7d0683bcc39e3abd041f1cfbb6b6bbae.exe
- Size 429KB
- Sample240502-bqp64sfa86
- SHA256 d4be2f3cfa3365cf4b7d567839a2d31f7d0683bcc39e3abd041f1cfbb6b6bbae
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
- Drops file in Windows directory 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\d4be2f3cfa3365cf4b7d567839a2d31f7d0683bcc39e3abd041f1cfbb6b6bbae.exe"C:\Users\Admin\AppData\Local\Temp\d4be2f3cfa3365cf4b7d567839a2d31f7d0683bcc39e3abd041f1cfbb6b6bbae.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\d4be2f3cfa3365cf4b7d567839a2d31f7d0683bcc39e3abd041f1cfbb6b6bbae.exe"C:\Users\Admin\AppData\Local\Temp\d4be2f3cfa3365cf4b7d567839a2d31f7d0683bcc39e3abd041f1cfbb6b6bbae.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1460 -s 17083⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1460 -ip 14601⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/1460-29-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1460-32-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1460-39-0x0000000077761000-0x0000000077881000-memory.dmp
memory/1460-38-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1460-13-0x0000000001660000-0x00000000027D6000-memory.dmp
memory/1460-14-0x00000000777E8000-0x00000000777E9000-memory.dmp
memory/1460-37-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1460-16-0x0000000077805000-0x0000000077806000-memory.dmp
memory/1460-36-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1460-35-0x0000000001660000-0x00000000027D6000-memory.dmp
memory/1460-12-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1460-31-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1460-33-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1460-34-0x0000000000400000-0x0000000001654000-memory.dmp
memory/5948-30-0x0000000004A20000-0x0000000005B96000-memory.dmp
memory/5948-10-0x0000000077761000-0x0000000077881000-memory.dmp
memory/5948-15-0x0000000004A20000-0x0000000005B96000-memory.dmp
memory/5948-9-0x0000000004A20000-0x0000000005B96000-memory.dmp
memory/5948-11-0x0000000010004000-0x0000000010005000-memory.dmp