Analysis
- max time kernel
120s - max time network
121s - platform
windows7_x64 - resource
win7-20240220-en - resource tags
- submitted
29/04/2024, 10:31
General
- Target 850a2a0eee8fe41dc2b84bcf4f692aa2.exe
- Size 347KB
- Sample240429-mkdfxagg9x
- SHA256 eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f
Malware Config
Extracted
-
stealc
-
http://185.172.128.151
-
url_path
/7043a0c6a68d9c65.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\850a2a0eee8fe41dc2b84bcf4f692aa2.exe"C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe"C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
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C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u1r8.2\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
U1R81~1.ZIP
a2ca7fc9
tmpC092.tmp
UIxMarketPlugin.dll
bunch.dat
relay.dll
whale.dbf
mozglue.dll
nss3.dll
u1r8.0.exe
run.exe
memory/1360-231-0x00000000720C0000-0x0000000073122000-memory.dmp
memory/1360-233-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/1360-232-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/1360-234-0x0000000000400000-0x00000000004C6000-memory.dmp
memory/1732-177-0x0000000076DB0000-0x0000000076F59000-memory.dmp
memory/1732-229-0x0000000073130000-0x00000000732A4000-memory.dmp
memory/2276-154-0x0000000002C80000-0x0000000002D80000-memory.dmp
memory/2276-1-0x0000000002C80000-0x0000000002D80000-memory.dmp
memory/2276-2-0x0000000000240000-0x00000000002AD000-memory.dmp
memory/2276-3-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/2276-147-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/2344-162-0x0000000073130000-0x00000000732A4000-memory.dmp
memory/2344-169-0x0000000073130000-0x00000000732A4000-memory.dmp
memory/2344-163-0x0000000076DB0000-0x0000000076F59000-memory.dmp
memory/2544-228-0x0000000000400000-0x0000000002AF0000-memory.dmp
memory/2544-176-0x0000000000400000-0x0000000002AF0000-memory.dmp
memory/2544-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp