Analysis

  • max time kernel
    141s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/08/2024, 00:38

General

  • Target

    FastCopy 5.7.15/FastCopy 5.7.15.exe

  • Size

    800KB

  • MD5

    1d7219cf3a87dbedad93498b934f5b35

  • SHA1

    710a24aa2867cd316ec1e1436520c9cc29c01ab3

  • SHA256

    627272c0b14b95919b07c3e93912baf379e256f86a041750dff87f5f124d5dde

  • SHA512

    e6a3955c8fd17bc0a9595d8ffe00f429397ea446402fa286bf32194df806eac03d151c6bc83fe5af5cacc9445f427426e14807592c1738b31efaaf26680536c2

  • SSDEEP

    24576:miaNv6AdXo9ioFCQIZbf4x/4QJ3gnEwT9bO74A0YqFno:ckk/ILteYtUZo

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FastCopy 5.7.15\FastCopy 5.7.15.exe
    "C:\Users\Admin\AppData\Local\Temp\FastCopy 5.7.15\FastCopy 5.7.15.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3104
    • C:\Users\Admin\AppData\Local\Temp\FastCopy 5.7.15\FastCopy 5.7.15.exe
      "C:\Users\Admin\AppData\Local\Temp\FastCopy 5.7.15\FastCopy 5.7.15.exe" -sfxwaitall:0 "FastCopy\FastCopy64.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:468
      • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\FastCopy\FastCopy64.exe
        "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\FastCopy\FastCopy64.exe"
        3⤵
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:2772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\FastCopy\FastCopy64.exe

    Filesize

    1.2MB

    MD5

    a42d03d947e62cb801286b08155d77aa

    SHA1

    7e94862b174a5296232b59ab1aec2a3362b6737b

    SHA256

    6a7ee6b2058a5fc52110f77a19cf283679d76d48376efdc2cf1e6c4b7ae58b35

    SHA512

    01f439ccc5400e6426fc55bb8d43cc5ccc32b7a73c411575495cb6e64e4fe9d61323744d8c68e3fe490bc74c27e47f116888a8f9b6391fe850138197f778a371

  • memory/468-9-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3104-0-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3104-8-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB