Analysis
- max time kernel
146s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
04/05/2024, 00:07
General
- Target b40250df4b038439834f7949cdde808f2ae1b9db78ee32ec574fa8e79525d40a.exe
- Size 454KB
- Sample240504-aeka2sbg63
- SHA256 b40250df4b038439834f7949cdde808f2ae1b9db78ee32ec574fa8e79525d40a
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
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 5 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 29 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 WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b40250df4b038439834f7949cdde808f2ae1b9db78ee32ec574fa8e79525d40a.exe"C:\Users\Admin\AppData\Local\Temp\b40250df4b038439834f7949cdde808f2ae1b9db78ee32ec574fa8e79525d40a.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u6k.0.exe"C:\Users\Admin\AppData\Local\Temp\u6k.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 4932 -s 21523⤵
- Program crash
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-
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C:\Users\Admin\AppData\Local\Temp\u6k.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u6k.2\run.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- 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
-
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\u6k.3.exe"C:\Users\Admin\AppData\Local\Temp\u6k.3.exe"2⤵
- 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 236 -s 16202⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 236 -ip 2361⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4932 -ip 49321⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
c9a55a8a
tmpDF26.tmp
tmpDF58.tmp
u6k.0.exe
u6k.1.zip
ASUS_WMI.dll
ATKEX.dll
AsIO.dll
doubled.doc
protactinium.log
run.exe
u6k.3.exe
memory/236-220-0x0000000000400000-0x0000000000470000-memory.dmp
memory/236-219-0x00000000037A0000-0x000000000380D000-memory.dmp
memory/236-218-0x0000000000400000-0x0000000001A3C000-memory.dmp
memory/236-1-0x0000000001C30000-0x0000000001D30000-memory.dmp
memory/236-3-0x0000000000400000-0x0000000000470000-memory.dmp
memory/236-2-0x00000000037A0000-0x000000000380D000-memory.dmp
memory/492-262-0x0000017CA19B0000-0x0000017CA19C4000-memory.dmp
memory/492-276-0x0000017CA68B0000-0x0000017CA68B8000-memory.dmp
memory/492-288-0x0000017CA6940000-0x0000017CA695E000-memory.dmp
memory/492-287-0x0000017CA6C30000-0x0000017CA6C52000-memory.dmp
memory/492-285-0x0000017CA6960000-0x0000017CA69B0000-memory.dmp
memory/492-286-0x0000017CA68D0000-0x0000017CA68DC000-memory.dmp
memory/492-282-0x0000017CA6E40000-0x0000017CA7368000-memory.dmp
memory/492-280-0x0000017CA68C0000-0x0000017CA68CA000-memory.dmp
memory/492-281-0x0000017CA68F0000-0x0000017CA6912000-memory.dmp
memory/492-258-0x0000017C838C0000-0x0000017C871B8000-memory.dmp
memory/492-259-0x0000017CA18A0000-0x0000017CA19B0000-memory.dmp
memory/492-261-0x0000017CA19C0000-0x0000017CA19CC000-memory.dmp
memory/492-260-0x0000017C87630000-0x0000017C87640000-memory.dmp
memory/492-278-0x0000017CA6200000-0x0000017CA620E000-memory.dmp
memory/492-263-0x0000017CA1A20000-0x0000017CA1A44000-memory.dmp
memory/492-264-0x0000017CA1A50000-0x0000017CA1A5A000-memory.dmp
memory/492-265-0x0000017CA1BE0000-0x0000017CA1C92000-memory.dmp
memory/492-266-0x0000017CA1C90000-0x0000017CA1CBA000-memory.dmp
memory/492-267-0x0000017CA1CC0000-0x0000017CA1D3A000-memory.dmp
memory/492-268-0x0000017CA1D40000-0x0000017CA1DA2000-memory.dmp
memory/492-269-0x0000017CA1E20000-0x0000017CA1E96000-memory.dmp
memory/492-270-0x0000017C87650000-0x0000017C8765A000-memory.dmp
memory/492-274-0x0000017CA1EA0000-0x0000017CA21A0000-memory.dmp
memory/492-277-0x0000017CA6230000-0x0000017CA6268000-memory.dmp
memory/920-299-0x0000000004EC0000-0x0000000004F10000-memory.dmp
memory/920-296-0x0000000005470000-0x0000000005A16000-memory.dmp
memory/920-297-0x00000000050B0000-0x0000000005272000-memory.dmp
memory/920-301-0x0000000006050000-0x000000000657C000-memory.dmp
memory/920-291-0x0000000073180000-0x0000000074497000-memory.dmp
memory/920-295-0x0000000004DA0000-0x0000000004E32000-memory.dmp
memory/920-294-0x0000000000630000-0x00000000006F6000-memory.dmp
memory/920-298-0x0000000004F40000-0x0000000004FB6000-memory.dmp
memory/920-303-0x0000000005C30000-0x0000000005C96000-memory.dmp
memory/920-302-0x0000000005B60000-0x0000000005B7E000-memory.dmp
memory/920-300-0x0000000004E50000-0x0000000004E5A000-memory.dmp
memory/952-257-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/952-245-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/2656-243-0x00007FF93F3A0000-0x00007FF93F5A9000-memory.dmp
memory/2656-279-0x0000000072BF0000-0x0000000072D6D000-memory.dmp
memory/3756-225-0x0000000072BF0000-0x0000000072D6D000-memory.dmp
memory/3756-170-0x00007FF93F3A0000-0x00007FF93F5A9000-memory.dmp
memory/3756-166-0x0000000072BF0000-0x0000000072D6D000-memory.dmp
memory/4932-45-0x0000000000400000-0x0000000001A17000-memory.dmp
memory/4932-217-0x0000000000400000-0x0000000001A17000-memory.dmp
memory/4932-18-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/4932-17-0x0000000000400000-0x0000000001A17000-memory.dmp
memory/4932-16-0x0000000000400000-0x0000000001A17000-memory.dmp