Analysis
- max time kernel
121s - max time network
122s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
27/04/2024, 23:11
General
- Target bafe2dffe2fe76093da577a2a7763aad.exe
- Size 452KB
- Sample240427-2586msaf69
- SHA256 cea8116fefb88cd3597edd342e9c0d5a99e6ff5e434035bdbb92f64c17ea2102
Malware Config
Extracted
-
stealc
-
http://185.172.128.76
-
url_path
/8681490a59ad0e34.php
Signatures
- SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
- SectopRAT payload 1 IoCs
- Stealc
Stealc is an infostealer written in C++.
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 12 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- 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 SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 7 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 22 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\bafe2dffe2fe76093da577a2a7763aad.exe"C:\Users\Admin\AppData\Local\Temp\bafe2dffe2fe76093da577a2a7763aad.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u1q8.0.exe"C:\Users\Admin\AppData\Local\Temp\u1q8.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\u1q8.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u1q8.2\run.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\SysWOW64\cmd.exe3⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
U1Q81~1.ZIP
b2571433
tmpA6CB.tmp
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
mozglue.dll
nss3.dll
u1q8.0.exe
memory/1456-231-0x0000000074560000-0x00000000746D4000-memory.dmp
memory/1456-185-0x0000000077900000-0x0000000077AA9000-memory.dmp
memory/1772-236-0x0000000000400000-0x00000000004C6000-memory.dmp
memory/1772-234-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/1772-235-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/1772-233-0x0000000072E80000-0x0000000073EE2000-memory.dmp
memory/2240-3-0x0000000000400000-0x0000000001A3C000-memory.dmp
memory/2240-2-0x00000000002F0000-0x000000000035D000-memory.dmp
memory/2240-156-0x0000000001AF0000-0x0000000001BF0000-memory.dmp
memory/2240-1-0x0000000001AF0000-0x0000000001BF0000-memory.dmp
memory/2240-155-0x0000000000400000-0x0000000001A3C000-memory.dmp
memory/2388-181-0x0000000000400000-0x0000000001A18000-memory.dmp
memory/2388-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2688-165-0x0000000074560000-0x00000000746D4000-memory.dmp
memory/2688-182-0x0000000074560000-0x00000000746D4000-memory.dmp
memory/2688-166-0x0000000077900000-0x0000000077AA9000-memory.dmp