Analysis

  • max time kernel
    126s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/03/2023, 09:22

General

  • Target
    tmp.exe
  • Size 227KB
  • Sample230301-lcbrnsfb4x
  • SHA256 3f3dadd2a5177fb918eabacc6a433d46f1975dd9c18cc0a7b63e09669625b800
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 3.66

C2
  • 193.42.33.28/0bjdn2Z/index.php

Extracted

Family
  • aurora

C2
  • 212.87.204.93:8081

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Aurora

    Aurora is a crypto wallet stealer written in Golang.

  • 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 5 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 45 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
    PID:60
    • C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
      "C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2828
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN mnolyk.exe /TR "C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:216
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "mnolyk.exe" /P "Admin:N"&&CACLS "mnolyk.exe" /P "Admin:R" /E&&echo Y|CACLS "..\1eb2f325ea" /P "Admin:N"&&CACLS "..\1eb2f325ea" /P "Admin:R" /E&&Exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3412
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" echo Y"
          4⤵
            PID:3056
          • C:\Windows\SysWOW64\cacls.exe
            CACLS "mnolyk.exe" /P "Admin:N"
            4⤵
              PID:3844
            • C:\Windows\SysWOW64\cacls.exe
              CACLS "mnolyk.exe" /P "Admin:R" /E
              4⤵
                PID:3104
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                4⤵
                  PID:3908
                • C:\Windows\SysWOW64\cacls.exe
                  CACLS "..\1eb2f325ea" /P "Admin:N"
                  4⤵
                    PID:1972
                  • C:\Windows\SysWOW64\cacls.exe
                    CACLS "..\1eb2f325ea" /P "Admin:R" /E
                    4⤵
                      PID:4460
                  • C:\Users\Admin\AppData\Local\Temp\1000007001\bin.exe
                    "C:\Users\Admin\AppData\Local\Temp\1000007001\bin.exe"
                    3⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:1852
                    • C:\Windows\SysWOW64\Wbem\wmic.exe
                      wmic os get Caption
                      4⤵
                      • Suspicious use of AdjustPrivilegeToken
                      PID:3892
                    • C:\Windows\SysWOW64\cmd.exe
                      cmd /C "wmic path win32_VideoController get name"
                      4⤵
                      • Suspicious use of WriteProcessMemory
                      PID:4364
                      • C:\Windows\SysWOW64\Wbem\WMIC.exe
                        wmic path win32_VideoController get name
                        5⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:3560
                    • C:\Windows\SysWOW64\cmd.exe
                      cmd /C "wmic cpu get name"
                      4⤵
                      • Suspicious use of WriteProcessMemory
                      PID:544
                      • C:\Windows\SysWOW64\Wbem\WMIC.exe
                        wmic cpu get name
                        5⤵
                          PID:4224
                • C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                  C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                  1⤵
                  • Executes dropped EXE
                  PID:4104
                • C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                  C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                  1⤵
                  • Executes dropped EXE
                  PID:3368
                • C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                  C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                  1⤵
                  • Executes dropped EXE
                  PID:3292

                Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      bin.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1000007001\bin.exe
                      • Size 3.0MB
                      • SHA256 07b974442b53035b8d057a7b429c191fe71f149a698041b005ee85645a89c165
                      • MD5 SHA1 SHA512 SSDEEP

                      bin.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1000007001\bin.exe
                      • Size 3.0MB
                      • SHA256 07b974442b53035b8d057a7b429c191fe71f149a698041b005ee85645a89c165
                      • MD5 SHA1 SHA512 SSDEEP

                      bin.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1000007001\bin.exe
                      • Size 3.0MB
                      • SHA256 07b974442b53035b8d057a7b429c191fe71f149a698041b005ee85645a89c165
                      • MD5 SHA1 SHA512 SSDEEP

                      mnolyk.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                      • Size 227KB
                      • SHA256 3f3dadd2a5177fb918eabacc6a433d46f1975dd9c18cc0a7b63e09669625b800
                      • MD5 SHA1 SHA512 SSDEEP

                      mnolyk.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                      • Size 227KB
                      • SHA256 3f3dadd2a5177fb918eabacc6a433d46f1975dd9c18cc0a7b63e09669625b800
                      • MD5 SHA1 SHA512 SSDEEP

                      mnolyk.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                      • Size 227KB
                      • SHA256 3f3dadd2a5177fb918eabacc6a433d46f1975dd9c18cc0a7b63e09669625b800
                      • MD5 SHA1 SHA512 SSDEEP

                      mnolyk.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                      • Size 227KB
                      • SHA256 3f3dadd2a5177fb918eabacc6a433d46f1975dd9c18cc0a7b63e09669625b800
                      • MD5 SHA1 SHA512 SSDEEP

                      mnolyk.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                      • Size 227KB
                      • SHA256 3f3dadd2a5177fb918eabacc6a433d46f1975dd9c18cc0a7b63e09669625b800
                      • MD5 SHA1 SHA512 SSDEEP

                      mnolyk.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1eb2f325ea\mnolyk.exe
                      • Size 227KB
                      • SHA256 3f3dadd2a5177fb918eabacc6a433d46f1975dd9c18cc0a7b63e09669625b800
                      • MD5 SHA1 SHA512 SSDEEP

                      RzLNTXYeUCWKsXbGyRAOmBTvKSJfjzaL

                      • Path C:\Users\Admin\AppData\Local\Temp\RzLNTXYeUCWKsXbGyRAOmBTvKSJfjzaL
                      • Size 2KB
                      • SHA256 68cafb091d3642a1ad2440bdb51834086945ded836ea25c8f75de7e5fc568d85
                      • MD5 SHA1 SHA512

                      nJObCsNVlgTeMaPEZQleQYhYzRyWJjPj

                      • Path C:\Users\Admin\AppData\Local\Temp\nJObCsNVlgTeMaPEZQleQYhYzRyWJjPj
                      • Size 71KB
                      • SHA256 448b329f3a10bbe3e8f86cd91509c2783b63d28a375231eb23724f5e141420f2
                      • MD5 SHA1 SHA512 SSDEEP