Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
08/09/2022, 12:39
General
- Target HSBC Customer Information.com.exe
- Size 196KB
- Sample220908-pvl7xaefa5
- SHA256 ef66ea0bcee19ccd3d2771a170ff218a3e43b27f1b18f24e08685cb4d3fe053a
Malware Config
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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Drops file in Program Files directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Modifies registry class 2 IoCs
- Suspicious behavior: EnumeratesProcesses 46 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 8 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\HSBC Customer Information.com.exe"C:\Users\Admin\AppData\Local\Temp\HSBC Customer Information.com.exe"2⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\HSBC Customer Information.com.exe"C:\Users\Admin\AppData\Local\Temp\HSBC Customer Information.com.exe"3⤵
- Checks QEMU agent file
- Checks computer location settings
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\NETSTAT.EXE"C:\Windows\SysWOW64\NETSTAT.EXE"2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
System.dll
memory/736-154-0x0000000001660000-0x0000000001760000-memory.dmp
memory/736-155-0x0000000000400000-0x0000000001654000-memory.dmp
memory/736-147-0x000000001D7C0000-0x000000001DB0A000-memory.dmp
memory/736-152-0x00007FF8A1FD0000-0x00007FF8A21C5000-memory.dmp
memory/736-138-0x0000000000400000-0x0000000001654000-memory.dmp
memory/736-150-0x000000001D5C0000-0x000000001D5D0000-memory.dmp
memory/736-140-0x0000000001660000-0x0000000001760000-memory.dmp
memory/736-141-0x0000000001660000-0x0000000001760000-memory.dmp
memory/736-142-0x00007FF8A1FD0000-0x00007FF8A21C5000-memory.dmp
memory/736-143-0x00000000776F0000-0x0000000077893000-memory.dmp
memory/736-144-0x0000000000400000-0x0000000001654000-memory.dmp
memory/736-145-0x0000000000400000-0x0000000001654000-memory.dmp
memory/736-146-0x0000000000401000-0x0000000001654000-memory.dmp
memory/736-153-0x00000000776F0000-0x0000000077893000-memory.dmp
memory/1596-156-0x0000000001410000-0x000000000175A000-memory.dmp
memory/1596-157-0x0000000000300000-0x000000000030B000-memory.dmp
memory/1596-158-0x0000000000CF0000-0x0000000000D1D000-memory.dmp
memory/1596-159-0x0000000001240000-0x00000000012CF000-memory.dmp
memory/1596-161-0x0000000000CF0000-0x0000000000D1D000-memory.dmp
memory/2804-149-0x0000000008200000-0x000000000833A000-memory.dmp
memory/2804-160-0x0000000002BD0000-0x0000000002CA4000-memory.dmp
memory/2804-162-0x0000000002BD0000-0x0000000002CA4000-memory.dmp
memory/4724-148-0x00000000042A0000-0x00000000043A1000-memory.dmp
memory/4724-133-0x00000000042A0000-0x00000000043A1000-memory.dmp
memory/4724-134-0x00000000042A0000-0x00000000043A1000-memory.dmp
memory/4724-139-0x00000000776F0000-0x0000000077893000-memory.dmp
memory/4724-136-0x00000000776F0000-0x0000000077893000-memory.dmp
memory/4724-135-0x00007FF8A1FD0000-0x00007FF8A21C5000-memory.dmp