Analysis
- max time kernel
131s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
03/05/2024, 10:07
General
- Target b06bc55cee7a8a1586b20c88e2a1ff58e62d85bb4aa76c43cca9a6815cb65ae9.exe
- Size 466KB
- Sample240503-l5mpmseb49
- SHA256 b06bc55cee7a8a1586b20c88e2a1ff58e62d85bb4aa76c43cca9a6815cb65ae9
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 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 1 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 33 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\b06bc55cee7a8a1586b20c88e2a1ff58e62d85bb4aa76c43cca9a6815cb65ae9.exe"C:\Users\Admin\AppData\Local\Temp\b06bc55cee7a8a1586b20c88e2a1ff58e62d85bb4aa76c43cca9a6815cb65ae9.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u17k.0.exe"C:\Users\Admin\AppData\Local\Temp\u17k.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\u17k.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u17k.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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C:\Users\Admin\AppData\Local\Temp\u17k.3.exe"C:\Users\Admin\AppData\Local\Temp\u17k.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
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1568 -s 16042⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1568 -ip 15681⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
dd23912b
u17k.0.exe
u17k.1.zip
ASUS_WMI.dll
ATKEX.dll
AsIO.dll
doubled.doc
protactinium.log
run.exe
u17k.3.exe
memory/100-17-0x0000000000400000-0x0000000001A1B000-memory.dmp
memory/100-191-0x0000000000400000-0x0000000001A1B000-memory.dmp
memory/100-164-0x0000000000400000-0x0000000001A1B000-memory.dmp
memory/100-16-0x0000000000400000-0x0000000001A1B000-memory.dmp
memory/100-183-0x0000000000400000-0x0000000001A1B000-memory.dmp
memory/100-215-0x0000000000400000-0x0000000001A1B000-memory.dmp
memory/100-127-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1568-35-0x0000000073E00000-0x0000000073E11000-memory.dmp
memory/1568-231-0x0000000000400000-0x0000000001A3F000-memory.dmp
memory/1568-168-0x0000000001BA0000-0x0000000001CA0000-memory.dmp
memory/1568-169-0x0000000000400000-0x0000000001A3F000-memory.dmp
memory/1568-232-0x0000000000400000-0x0000000000470000-memory.dmp
memory/1568-173-0x0000000000400000-0x0000000000470000-memory.dmp
memory/1568-1-0x0000000001BA0000-0x0000000001CA0000-memory.dmp
memory/1568-18-0x0000000000400000-0x0000000001A3F000-memory.dmp
memory/1568-37-0x0000000073DE0000-0x0000000073DF6000-memory.dmp
memory/1568-38-0x00000000735F0000-0x0000000073648000-memory.dmp
memory/1568-2-0x0000000003650000-0x00000000036BD000-memory.dmp
memory/1568-3-0x0000000000400000-0x0000000000470000-memory.dmp
memory/2136-268-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3564-281-0x000001EF79AD0000-0x000001EF79B4A000-memory.dmp
memory/3564-295-0x000001EF7DF20000-0x000001EF7DF58000-memory.dmp
memory/3564-305-0x000001EF79C10000-0x000001EF79C2E000-memory.dmp
memory/3564-304-0x000001EF7DF60000-0x000001EF7DF82000-memory.dmp
memory/3564-302-0x000001EF7DFB0000-0x000001EF7E000000-memory.dmp
memory/3564-303-0x000001EF182F0000-0x000001EF182FC000-memory.dmp
memory/3564-269-0x000001EF735C0000-0x000001EF76EB8000-memory.dmp
memory/3564-270-0x000001EF797D0000-0x000001EF798E0000-memory.dmp
memory/3564-271-0x000001EF77320000-0x000001EF77330000-memory.dmp
memory/3564-272-0x000001EF78B00000-0x000001EF78B0C000-memory.dmp
memory/3564-299-0x000001EF19090000-0x000001EF195B8000-memory.dmp
memory/3564-274-0x000001EF78AF0000-0x000001EF78B04000-memory.dmp
memory/3564-275-0x000001EF78B60000-0x000001EF78B84000-memory.dmp
memory/3564-298-0x000001EF182D0000-0x000001EF182F2000-memory.dmp
memory/3564-297-0x000001EF182C0000-0x000001EF182CA000-memory.dmp
memory/3564-278-0x000001EF78B90000-0x000001EF78B9A000-memory.dmp
memory/3564-279-0x000001EF795F0000-0x000001EF7961A000-memory.dmp
memory/3564-280-0x000001EF79A20000-0x000001EF79AD2000-memory.dmp
memory/3564-296-0x000001EF79BE0000-0x000001EF79BEE000-memory.dmp
memory/3564-282-0x000001EF79B50000-0x000001EF79BB2000-memory.dmp
memory/3564-283-0x000001EF79C30000-0x000001EF79CA6000-memory.dmp
memory/3564-294-0x000001EF79BD0000-0x000001EF79BD8000-memory.dmp
memory/3564-285-0x000001EF78BA0000-0x000001EF78BAA000-memory.dmp
memory/3564-290-0x000001EF79CB0000-0x000001EF79FB0000-memory.dmp
memory/3940-124-0x0000000072E00000-0x0000000072F7B000-memory.dmp
memory/3940-165-0x0000000072E00000-0x0000000072F7B000-memory.dmp
memory/3940-125-0x00007FF9F4A70000-0x00007FF9F4C65000-memory.dmp
memory/4736-237-0x0000000072E00000-0x0000000072F7B000-memory.dmp
memory/4736-170-0x00007FF9F4A70000-0x00007FF9F4C65000-memory.dmp
memory/4820-284-0x0000000005D10000-0x0000000005ED2000-memory.dmp
memory/4820-277-0x0000000005F60000-0x0000000006504000-memory.dmp
memory/4820-276-0x00000000058C0000-0x0000000005952000-memory.dmp
memory/4820-273-0x0000000001200000-0x00000000012C6000-memory.dmp
memory/4820-289-0x0000000005A30000-0x0000000005AA6000-memory.dmp
memory/4820-254-0x00000000717A0000-0x00000000729F4000-memory.dmp
memory/4820-293-0x00000000058A0000-0x00000000058AA000-memory.dmp
memory/4820-292-0x0000000005AB0000-0x0000000005B00000-memory.dmp