Analysis
- max time kernel
140s - max time network
124s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
07/03/2024, 03:05
General
- Target df09e53e0571765247faf08a316fd75c13e84be01f4db61b294e0ec95aaf1b5e.exe
- Size 816KB
- Sample240307-dlekxsdg35
- SHA256 df09e53e0571765247faf08a316fd75c13e84be01f4db61b294e0ec95aaf1b5e
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
- Drops file in System32 directory 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\df09e53e0571765247faf08a316fd75c13e84be01f4db61b294e0ec95aaf1b5e.exe"C:\Users\Admin\AppData\Local\Temp\df09e53e0571765247faf08a316fd75c13e84be01f4db61b294e0ec95aaf1b5e.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- 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\df09e53e0571765247faf08a316fd75c13e84be01f4db61b294e0ec95aaf1b5e.exe"C:\Users\Admin\AppData\Local\Temp\df09e53e0571765247faf08a316fd75c13e84be01f4db61b294e0ec95aaf1b5e.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4156 -s 16603⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4156 -ip 41561⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Spahees99.lnk
System.dll
memory/4156-291-0x0000000001660000-0x0000000003BC0000-memory.dmp
memory/4156-313-0x0000000001660000-0x0000000003BC0000-memory.dmp
memory/4156-315-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4156-290-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4156-311-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4156-314-0x0000000034040000-0x000000003438A000-memory.dmp
memory/4156-294-0x00000000779B8000-0x00000000779B9000-memory.dmp
memory/4156-293-0x0000000077931000-0x0000000077A51000-memory.dmp
memory/4156-295-0x00000000779D5000-0x00000000779D6000-memory.dmp
memory/4156-308-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4156-312-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4156-309-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4736-289-0x0000000074580000-0x0000000074587000-memory.dmp
memory/4736-310-0x0000000005450000-0x00000000079B0000-memory.dmp
memory/4736-292-0x0000000005450000-0x00000000079B0000-memory.dmp
memory/4736-288-0x0000000077931000-0x0000000077A51000-memory.dmp
memory/4736-287-0x0000000005450000-0x00000000079B0000-memory.dmp