Analysis

  • max time kernel
    118s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2024, 16:12

General

  • Target

    7ab0f654bf74155e0542f24c0d28b76d.exe

  • Size

    565KB

  • MD5

    7ab0f654bf74155e0542f24c0d28b76d

  • SHA1

    7779d605855c78bb157415e819b26e066ba592c6

  • SHA256

    0570d9e5e65df71ecaf1bb2a2c40ff6fb195051a0d7aafc6d60ee03fe4cad7ef

  • SHA512

    ca323b6018b595fc718b94dbe72403521a2dae008bf351bd01b5652dfd914af911b3471431aa923e3b6a6c7c67c143c7dcc8bbbc2b68c76f7baa3ae8b8cdf6b4

  • SSDEEP

    12288:SA9KBlzwTINPNus8nv93l25FGFZI9Kxo9tf45uA8Y:SA9qwT6Wv725FGdxEdY

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ab0f654bf74155e0542f24c0d28b76d.exe
    "C:\Users\Admin\AppData\Local\Temp\7ab0f654bf74155e0542f24c0d28b76d.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\n8958\s8958.exe
      "C:\Users\Admin\AppData\Local\Temp\n8958\s8958.exe" ins.exe /u 5278b197-2b74-4c00-9df5-03c70a000013 /h 091603.api.socdn.com /e 12909437 /v "C:\Users\Admin\AppData\Local\Temp\7ab0f654bf74155e0542f24c0d28b76d.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:3896
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 1888
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4496
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 3892
      2⤵
      • Program crash
      PID:4248
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2180 -ip 2180
    1⤵
      PID:2812

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\n8958\s8958.exe

            Filesize

            411KB

            MD5

            13b0085a03720e67fb8c73db3f14609e

            SHA1

            ddf811f21e6c066b644d03e6751e16efb0fbecce

            SHA256

            f9449897f9ca99b99837ad322c8b6737e7a47e3827b6a4c073c6ca8911d8c340

            SHA512

            39b95dce14b3eea6f191d4dbaaff87ebbc8f3b6982e7b4ee5ebeed83d3b7397441665f25dec5eb9f8a1f3b12f4ddcd604d5852b781f592488263161c0d620e82

          • memory/3896-14-0x00007FF97D520000-0x00007FF97DEC1000-memory.dmp

            Filesize

            9.6MB

          • memory/3896-15-0x0000000001800000-0x0000000001810000-memory.dmp

            Filesize

            64KB

          • memory/3896-31-0x00000000016C0000-0x00000000016CE000-memory.dmp

            Filesize

            56KB

          • memory/3896-34-0x000000001CC00000-0x000000001D0CE000-memory.dmp

            Filesize

            4.8MB

          • memory/3896-35-0x000000001D0D0000-0x000000001D16C000-memory.dmp

            Filesize

            624KB

          • memory/3896-36-0x0000000001800000-0x0000000001810000-memory.dmp

            Filesize

            64KB

          • memory/3896-43-0x00007FF97D520000-0x00007FF97DEC1000-memory.dmp

            Filesize

            9.6MB