Analysis
- max time kernel
136s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
27/04/2024, 16:07
General
- Target tmp.exe
- Size 386KB
- Sample240427-tkl7dadd6y
- SHA256 9317408100896c9251defb1a2f2cfca2627ac72dce9f4d7f0d5c3bfdc736e179
Malware Config
Extracted
-
stealc
-
http://185.172.128.62
-
url_path
/902e53a07830e030.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 27 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\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u3so.0.exe"C:\Users\Admin\AppData\Local\Temp\u3so.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 3332 -s 21283⤵
- Program crash
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-
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C:\Users\Admin\AppData\Local\Temp\u3so.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u3so.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
-
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\u3so.3.exe"C:\Users\Admin\AppData\Local\Temp\u3so.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 4920 -s 15562⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4920 -ip 49201⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3332 -ip 33321⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
465fe08e
tmp843F.tmp
tmp8462.tmp
u3so.0.exe
u3so.1.zip
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
u3so.3.exe
memory/736-152-0x00000000730C0000-0x000000007323B000-memory.dmp
memory/736-160-0x00000000730C0000-0x000000007323B000-memory.dmp
memory/736-153-0x00007FFA2D1B0000-0x00007FFA2D3A5000-memory.dmp
memory/1848-239-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1848-250-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3288-282-0x00000000730C0000-0x000000007323B000-memory.dmp
memory/3288-172-0x00007FFA2D1B0000-0x00007FFA2D3A5000-memory.dmp
memory/3332-22-0x0000000000400000-0x0000000002AFA000-memory.dmp
memory/3332-159-0x0000000002D80000-0x0000000002E80000-memory.dmp
memory/3332-19-0x0000000000400000-0x0000000002AFA000-memory.dmp
memory/3332-66-0x0000000000400000-0x0000000002AFA000-memory.dmp
memory/3332-237-0x0000000000400000-0x0000000002AFA000-memory.dmp
memory/3332-23-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3332-17-0x0000000002D80000-0x0000000002E80000-memory.dmp
memory/3332-18-0x0000000002E80000-0x0000000002EA7000-memory.dmp
memory/4920-20-0x0000000002C10000-0x0000000002D10000-memory.dmp
memory/4920-190-0x0000000000400000-0x0000000002B1F000-memory.dmp
memory/4920-163-0x0000000000400000-0x0000000002B1F000-memory.dmp
memory/4920-21-0x0000000000400000-0x0000000002B1F000-memory.dmp
memory/4920-4-0x0000000000400000-0x0000000002B1F000-memory.dmp
memory/4920-3-0x0000000000400000-0x0000000002B1F000-memory.dmp
memory/4920-1-0x0000000002C10000-0x0000000002D10000-memory.dmp
memory/4920-2-0x0000000004810000-0x000000000487D000-memory.dmp
memory/5044-253-0x000001D2A5AD0000-0x000001D2A5AE0000-memory.dmp
memory/5044-278-0x000001D2C53F0000-0x000001D2C53FC000-memory.dmp
memory/5044-256-0x000001D2BF930000-0x000001D2BF954000-memory.dmp
memory/5044-257-0x000001D2BF960000-0x000001D2BF96A000-memory.dmp
memory/5044-258-0x000001D2BFCD0000-0x000001D2BFCFA000-memory.dmp
memory/5044-259-0x000001D2BFF80000-0x000001D2C0032000-memory.dmp
memory/5044-261-0x000001D2C00B0000-0x000001D2C0112000-memory.dmp
memory/5044-260-0x000001D2C0030000-0x000001D2C00AA000-memory.dmp
memory/5044-262-0x000001D2C0190000-0x000001D2C0206000-memory.dmp
memory/5044-263-0x000001D2BF970000-0x000001D2BF97A000-memory.dmp
memory/5044-267-0x000001D2C0210000-0x000001D2C0510000-memory.dmp
memory/5044-269-0x000001D2C4BD0000-0x000001D2C4BD8000-memory.dmp
memory/5044-270-0x000001D2C4510000-0x000001D2C4548000-memory.dmp
memory/5044-271-0x000001D2C44E0000-0x000001D2C44EE000-memory.dmp
memory/5044-272-0x000001D2C5670000-0x000001D2C567A000-memory.dmp
memory/5044-273-0x000001D2C5680000-0x000001D2C56A2000-memory.dmp
memory/5044-274-0x000001D2C5BD0000-0x000001D2C60F8000-memory.dmp
memory/5044-255-0x000001D2BF8C0000-0x000001D2BF8D4000-memory.dmp
memory/5044-277-0x000001D2C5440000-0x000001D2C5490000-memory.dmp
memory/5044-279-0x000001D2C5490000-0x000001D2C54B2000-memory.dmp
memory/5044-280-0x000001D2C54C0000-0x000001D2C54DE000-memory.dmp
memory/5044-254-0x000001D2BF8D0000-0x000001D2BF8DC000-memory.dmp
memory/5044-251-0x000001D2A0490000-0x000001D2A3D88000-memory.dmp
memory/5044-252-0x000001D2BFD30000-0x000001D2BFE40000-memory.dmp
memory/5712-288-0x0000000005A30000-0x0000000005AC2000-memory.dmp
memory/5712-289-0x0000000006080000-0x0000000006624000-memory.dmp
memory/5712-290-0x0000000005DB0000-0x0000000005F72000-memory.dmp
memory/5712-291-0x0000000005B50000-0x0000000005BC6000-memory.dmp
memory/5712-292-0x0000000005C30000-0x0000000005C80000-memory.dmp
memory/5712-293-0x0000000005A10000-0x0000000005A1A000-memory.dmp
memory/5712-294-0x0000000006C60000-0x000000000718C000-memory.dmp
memory/5712-295-0x0000000006730000-0x000000000674E000-memory.dmp
memory/5712-296-0x0000000006810000-0x0000000006876000-memory.dmp
memory/5712-287-0x0000000001340000-0x0000000001406000-memory.dmp
memory/5712-284-0x0000000071C60000-0x0000000072EB4000-memory.dmp