Analysis
- max time kernel
150s - max time network
122s - platform
windows7_x64 - resource
win7-20230712-en - resource tags
- submitted
14/07/2023, 11:54
General
- Target SecuriteInfo.com.FileRepMalware.16560.22720.exe
- Size 703KB
- Sample230714-n2vxysdd73
- SHA256 4365ff3c93ee1faa413ab7cf6838884c449053479d3039e995a6cdfe590125e4
Malware Config
Extracted
-
smokeloader
-
2022
-
http://cletonmy.com/
-
http://alpatrik.com/
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Deletes itself 1 IoCs
- 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 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 1 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
System.dll
memory/1264-77-0x0000000002B40000-0x0000000002B56000-memory.dmp
memory/2500-75-0x0000000001470000-0x0000000002C01000-memory.dmp
memory/2500-71-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2500-81-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2500-78-0x0000000001470000-0x0000000002C01000-memory.dmp
memory/2500-68-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2500-69-0x0000000001470000-0x0000000002C01000-memory.dmp
memory/2500-70-0x0000000077470000-0x0000000077619000-memory.dmp
memory/2500-76-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2500-73-0x0000000001470000-0x0000000002C01000-memory.dmp
memory/2500-74-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2800-64-0x0000000003A50000-0x00000000051E1000-memory.dmp
memory/2800-65-0x0000000077470000-0x0000000077619000-memory.dmp
memory/2800-63-0x0000000003A50000-0x00000000051E1000-memory.dmp
memory/2800-67-0x0000000010000000-0x0000000010006000-memory.dmp
memory/2800-66-0x0000000077660000-0x0000000077736000-memory.dmp