Analysis
- max time kernel
122s - max time network
123s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
30/04/2024, 01:56
General
- Target d3426eefc87c0dc419603220907c90dc5db259b94ce235105b298867910c0f83.exe
- Size 348KB
- Sample240430-ccp5maha97
- SHA256 d3426eefc87c0dc419603220907c90dc5db259b94ce235105b298867910c0f83
Malware Config
Extracted
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stealc
-
http://185.172.128.151
-
url_path
/7043a0c6a68d9c65.php
Signatures
- SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
- SectopRAT payload 1 IoCs
- Stealc
Stealc is an infostealer written in C++.
- Detect binaries embedding considerable number of MFA browser extension IDs. 2 IoCs
- Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 2 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 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 processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\d3426eefc87c0dc419603220907c90dc5db259b94ce235105b298867910c0f83.exe"C:\Users\Admin\AppData\Local\Temp\d3426eefc87c0dc419603220907c90dc5db259b94ce235105b298867910c0f83.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u3uc.0.exe"C:\Users\Admin\AppData\Local\Temp\u3uc.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 24043⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\u3uc.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u3uc.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
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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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4980 -s 11442⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4980 -ip 49801⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1388 -ip 13881⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
e6cb560c
tmp888.tmp
tmp8AA.tmp
u3uc.0.exe
u3uc.1.zip
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
memory/1388-190-0x0000000000400000-0x0000000002AF3000-memory.dmp
memory/1388-114-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1388-156-0x0000000000400000-0x0000000002AF3000-memory.dmp
memory/1388-113-0x0000000002C40000-0x0000000002D40000-memory.dmp
memory/1596-189-0x0000000072D20000-0x0000000072E9B000-memory.dmp
memory/1596-111-0x00007FF91D750000-0x00007FF91D945000-memory.dmp
memory/2432-99-0x0000000072D20000-0x0000000072E9B000-memory.dmp
memory/2432-100-0x00007FF91D750000-0x00007FF91D945000-memory.dmp
memory/2432-108-0x0000000072D20000-0x0000000072E9B000-memory.dmp
memory/4200-203-0x0000000006190000-0x00000000061AE000-memory.dmp
memory/4200-199-0x00000000055A0000-0x0000000005616000-memory.dmp
memory/4200-223-0x0000000007AB0000-0x0000000007ABA000-memory.dmp
memory/4200-204-0x0000000006280000-0x00000000062E6000-memory.dmp
memory/4200-192-0x0000000071AC0000-0x0000000072D14000-memory.dmp
memory/4200-195-0x0000000000D30000-0x0000000000DF6000-memory.dmp
memory/4200-196-0x00000000053D0000-0x0000000005462000-memory.dmp
memory/4200-197-0x0000000005AA0000-0x0000000006044000-memory.dmp
memory/4200-198-0x0000000005770000-0x0000000005932000-memory.dmp
memory/4200-202-0x0000000006680000-0x0000000006BAC000-memory.dmp
memory/4200-200-0x0000000005500000-0x0000000005550000-memory.dmp
memory/4200-201-0x0000000005490000-0x000000000549A000-memory.dmp
memory/4980-107-0x0000000004750000-0x00000000047BD000-memory.dmp
memory/4980-103-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/4980-84-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/4980-3-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/4980-2-0x0000000004750000-0x00000000047BD000-memory.dmp
memory/4980-1-0x0000000002DB0000-0x0000000002EB0000-memory.dmp