Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
28/04/2024, 14:58
General
- Target 7f7e1c02807a2ac57f765a80b3ae2dde.exe
- Size 451KB
- Sample240428-sb53fsac96
- SHA256 84aabb05fa24bb4994957177e3721ed6666aadd821b63360ac4417009dfb7db9
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 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 SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7f7e1c02807a2ac57f765a80b3ae2dde.exe"C:\Users\Admin\AppData\Local\Temp\7f7e1c02807a2ac57f765a80b3ae2dde.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u33o.0.exe"C:\Users\Admin\AppData\Local\Temp\u33o.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 4492 -s 22403⤵
- Program crash
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-
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C:\Users\Admin\AppData\Local\Temp\u33o.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u33o.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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C:\Users\Admin\AppData\Local\Temp\u33o.3.exe"C:\Users\Admin\AppData\Local\Temp\u33o.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 4020 -s 15682⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4020 -ip 40201⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4492 -ip 44921⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
9aac56ab
tmp35D1.tmp
tmp35E4.tmp
u33o.0.exe
u33o.1.zip
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
u33o.3.exe
memory/456-236-0x00007FFC9A530000-0x00007FFC9A725000-memory.dmp
memory/456-282-0x0000000072F50000-0x00000000730CB000-memory.dmp
memory/1004-152-0x0000000072F50000-0x00000000730CB000-memory.dmp
memory/1004-153-0x00007FFC9A530000-0x00007FFC9A725000-memory.dmp
memory/1004-218-0x0000000072F50000-0x00000000730CB000-memory.dmp
memory/2288-255-0x0000018229360000-0x0000018229374000-memory.dmp
memory/2288-269-0x0000018248570000-0x0000018248578000-memory.dmp
memory/2288-280-0x0000018248E60000-0x0000018248E7E000-memory.dmp
memory/2288-279-0x0000018248E30000-0x0000018248E52000-memory.dmp
memory/2288-278-0x0000018248D90000-0x0000018248D9C000-memory.dmp
memory/2288-277-0x0000018248DE0000-0x0000018248E30000-memory.dmp
memory/2288-274-0x0000018249570000-0x0000018249A98000-memory.dmp
memory/2288-273-0x0000018249020000-0x0000018249042000-memory.dmp
memory/2288-272-0x0000018249010000-0x000001824901A000-memory.dmp
memory/2288-251-0x0000018223E30000-0x0000018227728000-memory.dmp
memory/2288-252-0x0000018243690000-0x00000182437A0000-memory.dmp
memory/2288-254-0x00000182434B0000-0x00000182434BC000-memory.dmp
memory/2288-253-0x0000018227B30000-0x0000018227B40000-memory.dmp
memory/2288-271-0x0000018247E80000-0x0000018247E8E000-memory.dmp
memory/2288-256-0x0000018243510000-0x0000018243534000-memory.dmp
memory/2288-257-0x0000018243540000-0x000001824354A000-memory.dmp
memory/2288-258-0x00000182438E0000-0x000001824390A000-memory.dmp
memory/2288-259-0x0000018243910000-0x00000182439C2000-memory.dmp
memory/2288-260-0x00000182439C0000-0x0000018243A3A000-memory.dmp
memory/2288-261-0x0000018243A40000-0x0000018243AA2000-memory.dmp
memory/2288-262-0x0000018243B20000-0x0000018243B96000-memory.dmp
memory/2288-263-0x0000018243550000-0x000001824355A000-memory.dmp
memory/2288-267-0x0000018243BA0000-0x0000018243EA0000-memory.dmp
memory/2288-270-0x0000018247EB0000-0x0000018247EE8000-memory.dmp
memory/2720-291-0x0000000004F60000-0x0000000004FD6000-memory.dmp
memory/2720-284-0x0000000073830000-0x0000000074A84000-memory.dmp
memory/2720-296-0x0000000005C40000-0x0000000005CA6000-memory.dmp
memory/2720-295-0x00000000052D0000-0x00000000052EE000-memory.dmp
memory/2720-294-0x00000000060F0000-0x000000000661C000-memory.dmp
memory/2720-293-0x0000000004ED0000-0x0000000004EDA000-memory.dmp
memory/2720-292-0x0000000004FE0000-0x0000000005030000-memory.dmp
memory/2720-288-0x0000000004E20000-0x0000000004EB2000-memory.dmp
memory/2720-287-0x0000000000770000-0x0000000000836000-memory.dmp
memory/2720-290-0x00000000052F0000-0x00000000054B2000-memory.dmp
memory/2720-289-0x0000000005510000-0x0000000005AB4000-memory.dmp
memory/4020-211-0x0000000000400000-0x0000000001A3C000-memory.dmp
memory/4020-1-0x0000000001A80000-0x0000000001B80000-memory.dmp
memory/4020-210-0x0000000003670000-0x00000000036DD000-memory.dmp
memory/4020-3-0x0000000000400000-0x0000000001A3C000-memory.dmp
memory/4020-2-0x0000000003670000-0x00000000036DD000-memory.dmp
memory/4492-217-0x0000000000400000-0x0000000001A18000-memory.dmp
memory/4492-17-0x0000000001C50000-0x0000000001C77000-memory.dmp
memory/4492-19-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/4492-18-0x0000000000400000-0x0000000001A18000-memory.dmp
memory/4492-16-0x0000000001D00000-0x0000000001E00000-memory.dmp
memory/4684-239-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/4684-250-0x0000000000400000-0x00000000008AD000-memory.dmp