Analysis
- max time kernel
150s - max time network
152s - platform
windows10_x64 - resource
win10v20210408 - submitted
19/05/2021, 19:02
General
- Target 13e0cd9d_by_Libranalysis.exe
- Size 109KB
- Sample210519-e6rb25gwlx
- SHA256 aa474883fd952e16e13715aa7a698fa8eb0d596fea71d03dfbaa235a1b08aa15
Score
10/10
Malware Config
Extracted
Family
-
guloader
C2
-
http://hshjiopklmsacnzbcjuewahfdsnvmlazbcuewqjh.ydns.eu/Eric_2021_eyKIYWgo49.bin
xor.base64
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\13e0cd9d_by_Libranalysis.exe"C:\Users\Admin\AppData\Local\Temp\13e0cd9d_by_Libranalysis.exe"1⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\13e0cd9d_by_Libranalysis.exe"C:\Users\Admin\AppData\Local\Temp\13e0cd9d_by_Libranalysis.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3860-118-0x0000000000400000-0x0000000000553000-memory.dmp
memory/3860-119-0x0000000000401000-0x00000000004FD000-memory.dmp
memory/3860-120-0x0000000000560000-0x0000000000660000-memory.dmp
memory/4020-116-0x0000000002300000-0x000000000230C000-memory.dmp