Analysis
- max time kernel
113s - max time network
118s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
24/08/2024, 00:20
General
- Target 5cd84d822f67bef7e920d24edb392700N.exe
- Size 286KB
- Sample240824-am7rbavhna
- SHA256 d1ca0798627cba043ff5701d44c800ce9c62874da6be84a480f114c44fa6a2fd
Score
10/10
Malware Config
Extracted
Family
-
guloader
C2
-
http://class.britishonline.co/bin/Orn_wOmSLYRRQS41.bin
xor.base64
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks QEMU agent state file 2 TTPs 2 IoCs
Checks state file used by QEMU agent, possibly to detect virtualization.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5cd84d822f67bef7e920d24edb392700N.exe"C:\Users\Admin\AppData\Local\Temp\5cd84d822f67bef7e920d24edb392700N.exe"1⤵
- Checks QEMU agent state file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\5cd84d822f67bef7e920d24edb392700N.exe"C:\Users\Admin\AppData\Local\Temp\5cd84d822f67bef7e920d24edb392700N.exe"2⤵
- Checks QEMU agent state file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/876-7-0x0000000000560000-0x0000000000660000-memory.dmp
memory/876-4-0x0000000000400000-0x000000000055D000-memory.dmp
memory/876-8-0x0000000000560000-0x0000000000660000-memory.dmp
memory/876-9-0x0000000000400000-0x000000000055D000-memory.dmp
memory/4500-2-0x0000000002970000-0x000000000297D000-memory.dmp
memory/4500-3-0x0000000077121000-0x0000000077241000-memory.dmp
memory/4500-6-0x0000000002970000-0x000000000297D000-memory.dmp