Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
29/04/2024, 19:54
General
- Target 31bf976b4eb86c21486d676156ea91b21f95b7bf024dd9731f81e3f70992aa81.exe
- Size 347KB
- Sample240429-ymzmpsbf21
- SHA256 31bf976b4eb86c21486d676156ea91b21f95b7bf024dd9731f81e3f70992aa81
Malware Config
Extracted
-
stealc
-
http://185.172.128.150
-
url_path
/c698e1bc8a2f5e6d.php
Signatures
- Detect ZGRat V1 3 IoCs
- SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
- SectopRAT payload 1 IoCs
- Stealc
Stealc is an infostealer written in C++.
- ZGRat
ZGRat is remote access trojan written in C#.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 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).
- Program crash 2 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 31 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 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
-
C:\Users\Admin\AppData\Local\Temp\31bf976b4eb86c21486d676156ea91b21f95b7bf024dd9731f81e3f70992aa81.exe"C:\Users\Admin\AppData\Local\Temp\31bf976b4eb86c21486d676156ea91b21f95b7bf024dd9731f81e3f70992aa81.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u2tc.0.exe"C:\Users\Admin\AppData\Local\Temp\u2tc.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1728 -s 23883⤵
- Program crash
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-
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C:\Users\Admin\AppData\Local\Temp\u2tc.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u2tc.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
-
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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-
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C:\Users\Admin\AppData\Local\Temp\u2tc.3.exe"C:\Users\Admin\AppData\Local\Temp\u2tc.3.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 15802⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3648 -ip 36481⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1728 -ip 17281⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Are.docx
mozglue.dll
nss3.dll
9533709
tmp1C8D.tmp
tmp1CAF.tmp
u2tc.0.exe
u2tc.1.zip
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
u2tc.3.exe
memory/1428-205-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1428-233-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1728-15-0x0000000004610000-0x0000000004637000-memory.dmp
memory/1728-17-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1728-14-0x0000000002B60000-0x0000000002C60000-memory.dmp
memory/1728-16-0x0000000000400000-0x0000000002AF0000-memory.dmp
memory/1728-159-0x0000000000400000-0x0000000002AF0000-memory.dmp
memory/1728-265-0x0000000000400000-0x0000000002AF0000-memory.dmp
memory/1728-142-0x0000000000400000-0x0000000002AF0000-memory.dmp
memory/1728-200-0x0000000002B60000-0x0000000002C60000-memory.dmp
memory/1728-199-0x0000000000400000-0x0000000002AF0000-memory.dmp
memory/3592-136-0x00007FF9F73B0000-0x00007FF9F75A5000-memory.dmp
memory/3592-153-0x0000000072960000-0x0000000072ADB000-memory.dmp
memory/3592-135-0x0000000072960000-0x0000000072ADB000-memory.dmp
memory/3648-175-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/3648-1-0x0000000002D30000-0x0000000002E30000-memory.dmp
memory/3648-155-0x0000000002D30000-0x0000000002E30000-memory.dmp
memory/3648-149-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/3648-13-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/3648-2-0x00000000047D0000-0x000000000483D000-memory.dmp
memory/3648-3-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/4280-157-0x00007FF9F73B0000-0x00007FF9F75A5000-memory.dmp
memory/4280-235-0x0000000072960000-0x0000000072ADB000-memory.dmp
memory/4468-289-0x0000000006480000-0x00000000064E6000-memory.dmp
memory/4468-288-0x0000000005C70000-0x0000000005C8E000-memory.dmp
memory/4468-287-0x00000000068E0000-0x0000000006E0C000-memory.dmp
memory/4468-286-0x0000000005670000-0x000000000567A000-memory.dmp
memory/4468-285-0x0000000005850000-0x00000000058A0000-memory.dmp
memory/4468-284-0x00000000057D0000-0x0000000005846000-memory.dmp
memory/4468-283-0x0000000005AA0000-0x0000000005C62000-memory.dmp
memory/4468-282-0x0000000005D00000-0x00000000062A4000-memory.dmp
memory/4468-281-0x0000000005680000-0x0000000005712000-memory.dmp
memory/4468-280-0x0000000000FB0000-0x0000000001076000-memory.dmp
memory/4468-274-0x0000000071500000-0x0000000072754000-memory.dmp
memory/4864-246-0x0000015481AB0000-0x0000015481ABC000-memory.dmp
memory/4864-264-0x00000154FCC40000-0x00000154FCC4E000-memory.dmp
memory/4864-263-0x00000154FCF60000-0x00000154FCF98000-memory.dmp
memory/4864-267-0x00000154A0440000-0x00000154A0462000-memory.dmp
memory/4864-266-0x00000154A0430000-0x00000154A043A000-memory.dmp
memory/4864-268-0x00000154A1A80000-0x00000154A1FA8000-memory.dmp
memory/4864-262-0x00000154FCC30000-0x00000154FCC38000-memory.dmp
memory/4864-272-0x00000154A0460000-0x00000154A046C000-memory.dmp
memory/4864-271-0x00000154FD0A0000-0x00000154FD0F0000-memory.dmp
memory/4864-260-0x000001549C050000-0x000001549C350000-memory.dmp
memory/4864-277-0x00000154FD050000-0x00000154FD072000-memory.dmp
memory/4864-278-0x00000154FCF20000-0x00000154FCF3E000-memory.dmp
memory/4864-256-0x0000015481A40000-0x0000015481A4A000-memory.dmp
memory/4864-255-0x00000154FCFA0000-0x00000154FD016000-memory.dmp
memory/4864-254-0x000001549BFF0000-0x000001549C052000-memory.dmp
memory/4864-253-0x000001549BF70000-0x000001549BFEA000-memory.dmp
memory/4864-251-0x000001549BE90000-0x000001549BEBA000-memory.dmp
memory/4864-252-0x000001549BEC0000-0x000001549BF72000-memory.dmp
memory/4864-250-0x0000015481A30000-0x0000015481A3A000-memory.dmp
memory/4864-248-0x0000015481B30000-0x0000015481B54000-memory.dmp
memory/4864-247-0x0000015481AA0000-0x0000015481AB4000-memory.dmp
memory/4864-245-0x0000015481A90000-0x0000015481AA0000-memory.dmp
memory/4864-241-0x000001549BC40000-0x000001549BD50000-memory.dmp
memory/4864-234-0x00000154F92C0000-0x00000154FCBB8000-memory.dmp