Analysis
- max time kernel
253s - max time network
255s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
02/05/2024, 00:06
General
- Target e00f4b2363b55221308cfc92b561a7680cf38cb3aed2ab0cb3251c1c1082b245.exe
- Size 395KB
- Sample240502-ad7pysdc25
- SHA256 e00f4b2363b55221308cfc92b561a7680cf38cb3aed2ab0cb3251c1c1082b245
Malware Config
Extracted
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stealc
-
http://185.172.128.151
-
url_path
/7043a0c6a68d9c65.php
Signatures
- Detects Arechclient2 RAT 1 IoCs
Arechclient2.
- 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 3 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 9 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\e00f4b2363b55221308cfc92b561a7680cf38cb3aed2ab0cb3251c1c1082b245.exe"C:\Users\Admin\AppData\Local\Temp\e00f4b2363b55221308cfc92b561a7680cf38cb3aed2ab0cb3251c1c1082b245.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u3x4.0.exe"C:\Users\Admin\AppData\Local\Temp\u3x4.0.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\u3x4.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u3x4.2\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⤵
- 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
Are.docx
58e465cc
tmp4DBE.tmp
u3x4.0.exe
u3x4.1.zip
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
mozglue.dll
nss3.dll
memory/216-70-0x0000000000400000-0x0000000002B06000-memory.dmp
memory/216-46-0x0000000000400000-0x0000000002B06000-memory.dmp
memory/216-11-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1036-153-0x00007FF87E8A0000-0x00007FF87EA7B000-memory.dmp
memory/1036-159-0x0000000073440000-0x00000000735BB000-memory.dmp
memory/1036-152-0x0000000073440000-0x00000000735BB000-memory.dmp
memory/2392-170-0x0000000005000000-0x0000000005092000-memory.dmp
memory/2392-173-0x0000000005120000-0x0000000005196000-memory.dmp
memory/2392-188-0x00000000076F0000-0x00000000076FA000-memory.dmp
memory/2392-178-0x0000000005D70000-0x0000000005DD6000-memory.dmp
memory/2392-177-0x0000000005690000-0x00000000056AE000-memory.dmp
memory/2392-176-0x0000000006220000-0x000000000674C000-memory.dmp
memory/2392-175-0x0000000002C70000-0x0000000002C7A000-memory.dmp
memory/2392-166-0x0000000071F20000-0x00000000732A3000-memory.dmp
memory/2392-169-0x0000000000B00000-0x0000000000BC6000-memory.dmp
memory/2392-174-0x00000000050C0000-0x0000000005110000-memory.dmp
memory/2392-171-0x00000000056F0000-0x0000000005BEE000-memory.dmp
memory/2392-172-0x00000000053C0000-0x0000000005582000-memory.dmp
memory/5072-162-0x00007FF87E8A0000-0x00007FF87EA7B000-memory.dmp
memory/5072-164-0x0000000073440000-0x00000000735BB000-memory.dmp
memory/5080-3-0x0000000000400000-0x0000000000470000-memory.dmp
memory/5080-145-0x0000000000400000-0x0000000002C46000-memory.dmp
memory/5080-1-0x0000000002E10000-0x0000000002F10000-memory.dmp
memory/5080-10-0x0000000000400000-0x0000000002C46000-memory.dmp
memory/5080-2-0x0000000003010000-0x000000000307D000-memory.dmp
memory/5080-148-0x0000000000400000-0x0000000000470000-memory.dmp