Analysis

  • max time kernel
    141s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    06-08-2021 13:33

General

  • Target

    Invoicel-datasheet.pif.exe

  • Size

    876KB

  • MD5

    0bb1c29f4a8c046e798cd9781cc127a7

  • SHA1

    bbad89c8d04b20f63d36014f00ded3818e595a53

  • SHA256

    139b8756b01add9dcac07d3a0137b0ea49a932fc4804ad0eca63ffc2958eda72

  • SHA512

    4b439bd85c725f104be24956525a6ae1a16dba28fe254695cbd667933d0cce2225e9a0f934ef17e1f5ef65ac033aa6ed72d016e3bed0bf270dd3d1eef12de63f

Malware Config

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • A310logger Executable 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoicel-datasheet.pif.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoicel-datasheet.pif.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3128
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JacGDBJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3008
    • C:\Users\Admin\AppData\Local\Temp\Invoicel-datasheet.pif.exe
      "{path}"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
        3⤵
        • Executes dropped EXE
        PID:4084
      • C:\Program Files (x86)\Windows Mail\WinMail.exe
        "C:\Program Files (x86)\Windows Mail\WinMail" OCInstallUserConfigOE
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3728
        • C:\Program Files\Windows Mail\WinMail.exe
          "C:\Program Files\Windows Mail\WinMail" OCInstallUserConfigOE
          4⤵
            PID:3732

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2032-126-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/3128-122-0x0000000008290000-0x0000000008349000-memory.dmp

      Filesize

      740KB

    • memory/3128-116-0x0000000004F30000-0x0000000004F31000-memory.dmp

      Filesize

      4KB

    • memory/3128-118-0x0000000004A50000-0x0000000004A51000-memory.dmp

      Filesize

      4KB

    • memory/3128-117-0x0000000004AD0000-0x0000000004AD1000-memory.dmp

      Filesize

      4KB

    • memory/3128-121-0x0000000006B00000-0x0000000006B01000-memory.dmp

      Filesize

      4KB

    • memory/3128-120-0x0000000004C70000-0x0000000004C72000-memory.dmp

      Filesize

      8KB

    • memory/3128-119-0x0000000004A30000-0x0000000004F2E000-memory.dmp

      Filesize

      5.0MB

    • memory/3128-123-0x00000000080D0000-0x000000000813F000-memory.dmp

      Filesize

      444KB

    • memory/3128-114-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/4084-133-0x0000000000920000-0x0000000000921000-memory.dmp

      Filesize

      4KB

    • memory/4084-135-0x0000000001250000-0x0000000001252000-memory.dmp

      Filesize

      8KB