Analysis
- max time kernel
1s - max time network
123s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
06/01/2024, 10:18
General
- Target 621a2e0d51746699c8a5e18ddf4e0f36.exe
- Size 3.0MB
- Sample240106-mbw7naeff5
- 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.
- NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
- Nirsoft 4 IoCs
- Executes dropped EXE 1 IoCs
- UPX packed file 4 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.
- Suspicious use of WriteProcessMemory 3 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⤵
- Executes dropped EXE
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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⤵
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"4⤵
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c compile.bat5⤵
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"4⤵
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c compile.bat5⤵
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"4⤵
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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⤵
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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⤵
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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⤵
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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"1⤵
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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⤵
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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"1⤵
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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"1⤵
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c compile.bat1⤵
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C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 31⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
ITROUB~1.EXE
memory/116-110-0x0000000000400000-0x000000000045B000-memory.dmp
memory/116-121-0x0000000000400000-0x000000000045B000-memory.dmp
memory/3560-33-0x00000000001E0000-0x00000000001F0000-memory.dmp
memory/3560-75-0x00007FF862460000-0x00007FF862F21000-memory.dmp
memory/3560-36-0x00007FF862460000-0x00007FF862F21000-memory.dmp
memory/3560-38-0x0000000002220000-0x0000000002230000-memory.dmp
memory/3812-42-0x000002C0E6F70000-0x000002C0E7020000-memory.dmp
memory/3812-80-0x000002C0E72B0000-0x000002C0E7352000-memory.dmp
memory/3812-28-0x000002C0CC390000-0x000002C0CC66A000-memory.dmp
memory/3812-178-0x00007FF862460000-0x00007FF862F21000-memory.dmp
memory/3812-87-0x000002C0E7590000-0x000002C0E75AE000-memory.dmp
memory/3812-39-0x000002C0E6B30000-0x000002C0E6E72000-memory.dmp
memory/3812-40-0x000002C0CE1C0000-0x000002C0CE1C6000-memory.dmp
memory/3812-41-0x000002C0E6EF0000-0x000002C0E6F66000-memory.dmp
memory/3812-85-0x000002C0CE320000-0x000002C0CE330000-memory.dmp
memory/3812-84-0x00007FF862460000-0x00007FF862F21000-memory.dmp
memory/3812-74-0x000002C0E6EA0000-0x000002C0E6EC2000-memory.dmp
memory/3812-81-0x000002C0E6EE0000-0x000002C0E6EE8000-memory.dmp
memory/3812-79-0x000002C0E7280000-0x000002C0E72B2000-memory.dmp
memory/3812-31-0x00007FF862460000-0x00007FF862F21000-memory.dmp
memory/3812-78-0x000002C0E7260000-0x000002C0E727A000-memory.dmp
memory/3812-77-0x000002C0E6B00000-0x000002C0E6B0C000-memory.dmp
memory/3812-76-0x000002C0E6E70000-0x000002C0E6EA0000-memory.dmp
memory/4120-9-0x0000000000452000-0x0000000000453000-memory.dmp
memory/4120-27-0x0000000074860000-0x0000000075010000-memory.dmp
memory/4120-12-0x0000000005270000-0x00000000052D6000-memory.dmp
memory/4120-11-0x00000000056B0000-0x0000000005C54000-memory.dmp
memory/4120-10-0x0000000004FF0000-0x0000000005000000-memory.dmp
memory/4120-8-0x0000000000440000-0x000000000073C000-memory.dmp
memory/4120-7-0x0000000074860000-0x0000000075010000-memory.dmp
memory/4760-122-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4760-118-0x0000000000400000-0x000000000041B000-memory.dmp