Analysis
- max time kernel
293s - max time network
302s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
25/04/2024, 22:22
General
- Target 567c1b49fe11b07455f838eb73cba70615693d71ad22d3e2a5866ebcd2665474.exe
- Size 396KB
- Sample240425-2aba5afh82
- SHA256 567c1b49fe11b07455f838eb73cba70615693d71ad22d3e2a5866ebcd2665474
Malware Config
Extracted
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stealc
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http://185.172.128.76
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url_path
/3cd2b41cbde8fc9c.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 3 IoCs
- Loads dropped DLL 1 IoCs
- Suspicious use of SetThreadContext 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 4 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 7 IoCs
- Suspicious use of SendNotifyMessage 7 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\567c1b49fe11b07455f838eb73cba70615693d71ad22d3e2a5866ebcd2665474.exe"C:\Users\Admin\AppData\Local\Temp\567c1b49fe11b07455f838eb73cba70615693d71ad22d3e2a5866ebcd2665474.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u3w4.0.exe"C:\Users\Admin\AppData\Local\Temp\u3w4.0.exe"2⤵
- Executes dropped EXE
-
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C:\Users\Admin\AppData\Local\Temp\u3w4.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u3w4.2\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 use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\u3w4.3.exe"C:\Users\Admin\AppData\Local\Temp\u3w4.3.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe"C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD13⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
7d458f55
tmp6AAE.tmp
u3w4.0.exe
u3w4.1.zip
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
u3w4.3.exe
memory/1468-13-0x0000000000400000-0x0000000000846000-memory.dmp
memory/1468-12-0x0000000000400000-0x0000000000846000-memory.dmp
memory/1468-11-0x0000000002460000-0x0000000002487000-memory.dmp
memory/1468-10-0x0000000000980000-0x0000000000A80000-memory.dmp
memory/1604-104-0x0000000072A00000-0x0000000072B7B000-memory.dmp
memory/1604-95-0x0000000072A00000-0x0000000072B7B000-memory.dmp
memory/1604-96-0x00007FFCCB9B0000-0x00007FFCCBB8B000-memory.dmp
memory/1604-105-0x0000000072A00000-0x0000000072B7B000-memory.dmp
memory/1732-113-0x0000000072A00000-0x0000000072B7B000-memory.dmp
memory/1732-107-0x0000000072A00000-0x0000000072B7B000-memory.dmp
memory/1732-110-0x00007FFCCB9B0000-0x00007FFCCBB8B000-memory.dmp
memory/1732-147-0x0000000072A00000-0x0000000072B7B000-memory.dmp
memory/1732-114-0x0000000072A00000-0x0000000072B7B000-memory.dmp
memory/1732-115-0x0000000072A00000-0x0000000072B7B000-memory.dmp
memory/3776-121-0x0000000000A00000-0x0000000000A01000-memory.dmp
memory/3776-183-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3776-162-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/4140-150-0x0000000000820000-0x00000000008E6000-memory.dmp
memory/4140-161-0x0000000005BC0000-0x0000000005C26000-memory.dmp
memory/4140-185-0x0000000005040000-0x0000000005050000-memory.dmp
memory/4140-184-0x0000000070CD0000-0x00000000713BE000-memory.dmp
memory/4140-146-0x00000000713C0000-0x0000000072743000-memory.dmp
memory/4140-151-0x0000000070CD0000-0x00000000713BE000-memory.dmp
memory/4140-160-0x00000000053F0000-0x000000000540E000-memory.dmp
memory/4140-152-0x0000000004EB0000-0x0000000004F42000-memory.dmp
memory/4140-153-0x0000000005450000-0x000000000594E000-memory.dmp
memory/4140-154-0x0000000005040000-0x0000000005050000-memory.dmp
memory/4140-155-0x0000000005220000-0x00000000053E2000-memory.dmp
memory/4140-156-0x0000000005050000-0x00000000050C6000-memory.dmp
memory/4140-157-0x0000000004FE0000-0x0000000005030000-memory.dmp
memory/4140-158-0x0000000004E80000-0x0000000004E8A000-memory.dmp
memory/4140-159-0x0000000006080000-0x00000000065AC000-memory.dmp
memory/5044-103-0x0000000000400000-0x0000000002C46000-memory.dmp
memory/5044-3-0x0000000000400000-0x0000000002C46000-memory.dmp
memory/5044-14-0x0000000000400000-0x0000000002C46000-memory.dmp
memory/5044-2-0x0000000002F10000-0x0000000002F7D000-memory.dmp
memory/5044-102-0x0000000002FA0000-0x00000000030A0000-memory.dmp
memory/5044-1-0x0000000002FA0000-0x00000000030A0000-memory.dmp
memory/5044-120-0x0000000000400000-0x0000000002C46000-memory.dmp