Analysis
- max time kernel
147s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
13/11/2024, 02:57
General
- Target d2473f318c1386699bdd8442cfe5455d44e18ec23d4b2482ffc82c7c227ab9ad.exe
- Size 418KB
- Sample241113-dfrcjavjfx
- SHA256 d2473f318c1386699bdd8442cfe5455d44e18ec23d4b2482ffc82c7c227ab9ad
Malware Config
Signatures
- Guloader family
- 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.
- Loads dropped DLL 2 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in System32 directory 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d2473f318c1386699bdd8442cfe5455d44e18ec23d4b2482ffc82c7c227ab9ad.exe"C:\Users\Admin\AppData\Local\Temp\d2473f318c1386699bdd8442cfe5455d44e18ec23d4b2482ffc82c7c227ab9ad.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\d2473f318c1386699bdd8442cfe5455d44e18ec23d4b2482ffc82c7c227ab9ad.exe"C:\Users\Admin\AppData\Local\Temp\d2473f318c1386699bdd8442cfe5455d44e18ec23d4b2482ffc82c7c227ab9ad.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/2700-14-0x0000000002DF0000-0x0000000003CB6000-memory.dmp
memory/2700-15-0x0000000077DF1000-0x0000000077F11000-memory.dmp
memory/2700-16-0x0000000074AE4000-0x0000000074AE5000-memory.dmp
memory/2700-19-0x0000000002DF0000-0x0000000003CB6000-memory.dmp
memory/3068-17-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3068-18-0x0000000001660000-0x0000000002526000-memory.dmp
memory/3068-20-0x0000000077E78000-0x0000000077E79000-memory.dmp
memory/3068-21-0x0000000001660000-0x0000000002526000-memory.dmp
memory/3068-22-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3068-23-0x0000000077DF1000-0x0000000077F11000-memory.dmp