Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
18/05/2024, 01:20
General
- Target 991ec3c08aeabb08bad405a1c26ce3f2aa2d70fbdd52168e5cc109f602a65b5b.exe
- Size 826KB
- Sample240518-bp9jcsdc71
- SHA256 991ec3c08aeabb08bad405a1c26ce3f2aa2d70fbdd52168e5cc109f602a65b5b
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\991ec3c08aeabb08bad405a1c26ce3f2aa2d70fbdd52168e5cc109f602a65b5b.exe"C:\Users\Admin\AppData\Local\Temp\991ec3c08aeabb08bad405a1c26ce3f2aa2d70fbdd52168e5cc109f602a65b5b.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\991ec3c08aeabb08bad405a1c26ce3f2aa2d70fbdd52168e5cc109f602a65b5b.exe"C:\Users\Admin\AppData\Local\Temp\991ec3c08aeabb08bad405a1c26ce3f2aa2d70fbdd52168e5cc109f602a65b5b.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
nse5160.tmp
nse5160.tmp
System.dll
nsj51CF.tmp
nso50FF.tmp
nso50FF.tmp
nso514F.tmp
nso519F.tmp
memory/536-572-0x00000000777B8000-0x00000000777B9000-memory.dmp
memory/536-576-0x0000000077731000-0x0000000077851000-memory.dmp
memory/536-574-0x0000000001720000-0x00000000031DE000-memory.dmp
memory/536-570-0x0000000001720000-0x00000000031DE000-memory.dmp
memory/536-573-0x00000000004C0000-0x0000000001714000-memory.dmp
memory/4296-567-0x00000000051A0000-0x0000000006C5E000-memory.dmp
memory/4296-571-0x00000000051A0000-0x0000000006C5E000-memory.dmp
memory/4296-569-0x0000000074415000-0x0000000074416000-memory.dmp
memory/4296-568-0x0000000077731000-0x0000000077851000-memory.dmp
memory/4296-580-0x00000000051A0000-0x0000000006C5E000-memory.dmp