Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
22/05/2024, 18:10
General
- Target PO874530040021 YIKANG INQUIRY.com.exe
- Size 322KB
- Sample240522-wr28aabd4w
- SHA256 b4834413f9bedbc2d64ba07d1401e4d1eb44a54adbca90bb79fc67bf03fa4ab5
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 4 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 2 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\PO874530040021 YIKANG INQUIRY.com.exe"C:\Users\Admin\AppData\Local\Temp\PO874530040021 YIKANG INQUIRY.com.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\PO874530040021 YIKANG INQUIRY.com.exe"C:\Users\Admin\AppData\Local\Temp\PO874530040021 YIKANG INQUIRY.com.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
UserInfo.dll
nsDialogs.dll
polres.lnk
memory/2324-381-0x0000000077188000-0x0000000077189000-memory.dmp
memory/2324-379-0x00000000016D0000-0x0000000002D3D000-memory.dmp
memory/2324-382-0x00000000771A5000-0x00000000771A6000-memory.dmp
memory/2324-383-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/2324-384-0x00000000016D0000-0x0000000002D3D000-memory.dmp
memory/2324-386-0x0000000077101000-0x0000000077221000-memory.dmp
memory/4088-377-0x0000000077101000-0x0000000077221000-memory.dmp
memory/4088-378-0x0000000073F64000-0x0000000073F65000-memory.dmp
memory/4088-380-0x0000000005EE0000-0x000000000754D000-memory.dmp
memory/4088-376-0x0000000005EE0000-0x000000000754D000-memory.dmp
memory/4088-391-0x0000000005EE0000-0x000000000754D000-memory.dmp