Analysis
- max time kernel
132s - max time network
137s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
28/04/2024, 02:41
General
- Target 4fe50d7ebbbbc20cd513cc300952a3c8.exe
- Size 455KB
- Sample240428-c6ewraed49
- SHA256 df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d
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\4fe50d7ebbbbc20cd513cc300952a3c8.exe"C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\uvk.0.exe"C:\Users\Admin\AppData\Local\Temp\uvk.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe"C:\Users\Admin\AppData\Local\Temp\uvk.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
1e1cf49d
UVK1~1.ZIP
tmp41C2.tmp
UIxMarketPlugin.dll
bunch.dat
relay.dll
whale.dbf
mozglue.dll
nss3.dll
uvk.0.exe
run.exe
memory/612-232-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/612-231-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/612-230-0x0000000072B30000-0x0000000073B92000-memory.dmp
memory/612-233-0x0000000000400000-0x00000000004C6000-memory.dmp
memory/1136-138-0x0000000000280000-0x0000000000380000-memory.dmp
memory/1136-137-0x0000000000400000-0x0000000001A3D000-memory.dmp
memory/1136-2-0x0000000003190000-0x00000000031FD000-memory.dmp
memory/1136-3-0x0000000000400000-0x0000000001A3D000-memory.dmp
memory/1136-1-0x0000000000280000-0x0000000000380000-memory.dmp
memory/1724-151-0x0000000077500000-0x00000000776A9000-memory.dmp
memory/1724-172-0x00000000741B0000-0x0000000074324000-memory.dmp
memory/1724-144-0x00000000741B0000-0x0000000074324000-memory.dmp
memory/2044-182-0x0000000077500000-0x00000000776A9000-memory.dmp
memory/2044-228-0x00000000741B0000-0x0000000074324000-memory.dmp
memory/2280-175-0x0000000000400000-0x0000000001A19000-memory.dmp
memory/2280-181-0x0000000000400000-0x0000000001A19000-memory.dmp
memory/2280-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp