Analysis
- max time kernel
141s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
17/01/2024, 07:40
General
- Target 621a2e0d51746699c8a5e18ddf4e0f36.exe
- Size 3.0MB
- Sample240117-jhsahacaa9
- SHA256 dfeba8ba02703953a17e57328652daf96d6728bc7e39e787643d6d6981cfd466
Malware Config
Extracted
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mercurialgrabber
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https://discord.com/api/webhooks/862013194289283082/vdP5RcPQkNuaioHUzl94srnD2CnT8Gw1Go06ysMvU9ESkKteehfXFyU5dIb1Rh_iLyFV
Signatures
- Mercurial Grabber Stealer
Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Nirsoft 9 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 5 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 8 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks SCSI registry key(s) 3 TTPs 1 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 4 IoCs
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 38 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\621a2e0d51746699c8a5e18ddf4e0f36.exe"C:\Users\Admin\AppData\Local\Temp\621a2e0d51746699c8a5e18ddf4e0f36.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ITROUB~1.EXEC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ITROUB~1.EXE2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\RtkBtManServ.exe"C:\Users\Admin\AppData\Local\Temp\RtkBtManServ.exe" ZhXl39BlhP84+Y4kurA8wpehxxqA0X22IMYZ6Vpiqs7qPgQntfut05YdOi28eQCggsJHk23Lu6xPx174Crfzhsr5tPC+eh7XQLDVfinSG47PCl1M6LIjSBK0hHIL2WAIYUm6cmT31exTCrvMYhl/vhmUsEh8VJKAT8vmAyMu/hE=3⤵
- Checks computer location settings
- Executes dropped EXE
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"4⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c compile.bat5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"4⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c compile.bat5⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\hh.exeC:\Users\Admin\AppData\Local\Temp\hh.exe /stext "C:\Users\Admin\AppData\Local\Temp\Cookies3"6⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\splwow64.exeC:\Users\Admin\AppData\Local\Temp\splwow64.exe /stext "C:\Users\Admin\AppData\Local\Temp\Cookies2"6⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\winhlp32.exeC:\Users\Admin\AppData\Local\Temp\winhlp32.exe /stext "C:\Users\Admin\AppData\Local\Temp\Cookies1"6⤵
- Executes dropped EXE
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"4⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c compile.bat5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\RtkBtManServ.exe"4⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MERCUR~1.EXEC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MERCUR~1.EXE2⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Executes dropped EXE
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\snuvcdsm.exeC:\Users\Admin\AppData\Local\Temp\snuvcdsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\Admin_Passwords.txt"1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\xwizard.exeC:\Users\Admin\AppData\Local\Temp\xwizard.exe /stext "C:\Users\Admin\AppData\Local\Temp\Admin_History.txt"1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 31⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Admin_Passwords.txt
Cookies1
Cookies3
ITROUB~1.EXE
ITROUB~1.EXE
MERCUR~1.EXE
RtkBtManServ.exe
RtkBtManServ.exe
RtkBtManServ.exe
bhvA1CE.tmp
compile.bat
compile.bat
compile.bat
compile.vbs
config
hh.exe
snuvcdsm.exe
snuvcdsm.exe
splwow64.exe
whysosad
winhlp32.exe
winhlp32.exe
xwizard.cfg
xwizard.exe
xwizard.exe
memory/2844-27-0x00000000748C0000-0x0000000075070000-memory.dmp
memory/2844-11-0x0000000005460000-0x0000000005A04000-memory.dmp
memory/2844-8-0x0000000000870000-0x0000000000B6C000-memory.dmp
memory/2844-7-0x00000000748C0000-0x0000000075070000-memory.dmp
memory/2844-10-0x0000000004DA0000-0x0000000004DB0000-memory.dmp
memory/2844-9-0x0000000000882000-0x0000000000883000-memory.dmp
memory/2844-12-0x00000000050A0000-0x0000000005106000-memory.dmp
memory/4792-119-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4932-118-0x0000000000400000-0x000000000045B000-memory.dmp
memory/4932-121-0x0000000000400000-0x000000000045B000-memory.dmp
memory/4952-38-0x000000001B930000-0x000000001B940000-memory.dmp
memory/4952-33-0x0000000000BA0000-0x0000000000BB0000-memory.dmp
memory/4952-74-0x00007FFCF1430000-0x00007FFCF1EF1000-memory.dmp
memory/4952-36-0x00007FFCF1430000-0x00007FFCF1EF1000-memory.dmp
memory/5072-39-0x0000023279250000-0x0000023279592000-memory.dmp
memory/5072-30-0x00007FFCF1430000-0x00007FFCF1EF1000-memory.dmp
memory/5072-40-0x000002325EFB0000-0x000002325EFB6000-memory.dmp
memory/5072-41-0x0000023260A60000-0x0000023260AD6000-memory.dmp
memory/5072-42-0x0000023260A50000-0x0000023260A60000-memory.dmp
memory/5072-43-0x0000023279590000-0x0000023279640000-memory.dmp
memory/5072-76-0x0000023260A20000-0x0000023260A42000-memory.dmp
memory/5072-80-0x0000023260B20000-0x0000023260B52000-memory.dmp
memory/5072-28-0x000002325E930000-0x000002325EC0A000-memory.dmp
memory/5072-86-0x000002327A3D0000-0x000002327A3EE000-memory.dmp
memory/5072-82-0x0000023260AF0000-0x0000023260AF8000-memory.dmp
memory/5072-77-0x00000232609F0000-0x0000023260A20000-memory.dmp
memory/5072-78-0x0000023260970000-0x000002326097C000-memory.dmp
memory/5072-79-0x0000023260B00000-0x0000023260B1A000-memory.dmp
memory/5072-81-0x000002327A130000-0x000002327A1D2000-memory.dmp
memory/5072-176-0x00007FFCF1430000-0x00007FFCF1EF1000-memory.dmp