Analysis

  • max time kernel
    141s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    26/05/2024, 03:21

General

  • Target

    d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe

  • Size

    79KB

  • MD5

    4a809b301f99ae7f3ca10cef1234f5a3

  • SHA1

    f9baabf18c6783afc0dc2a73096bf576447779f9

  • SHA256

    d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08

  • SHA512

    bdd06dcd9a63414d3e5bfc4833efebe63d8b0b589286b2a712043d4154ef0bdb3a8a4ccfa0e9f6d82d953f90e97875a88d09df402ea8cb8f790853468102c992

  • SSDEEP

    1536:bDcWLfIbgEp10gyX/dtnTHNWnnn622222t:bDXL0n0gyX/d1re2222t

Score
9/10

Malware Config

Signatures

  • Detects Windows executables referencing non-Windows User-Agents 4 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe
    "C:\Users\Admin\AppData\Local\Temp\d2d573c56853dcffa250ada5944b33536531e77020fd900ea919f9747e568a08.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\rwmhost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • Views/modifies file attributes
      PID:1240
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\D2D573~1.EXE > nul
      2⤵
      • Deletes itself
      PID:3012
  • C:\Windows\Debug\rwmhost.exe
    C:\Windows\Debug\rwmhost.exe
    1⤵
    • Executes dropped EXE
    • Checks processor information in registry
    PID:1740

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\Debug\rwmhost.exe

          Filesize

          79KB

          MD5

          1c70e81c05fa5cd8d58328c0cde86f3c

          SHA1

          9ac39b5952bff9dcb8be688846fad8c062592247

          SHA256

          8bfeaa3deddea5cf1e09eec1817d239666dd0ec61b9c97d94790bbef397aefe0

          SHA512

          6cdc389a22d1efbc6002947c61d2eebc2c577ad196e87e65d5482d4a36741b4da60694ddef89eeceac5ec20d5b821853ba6c1873cbaceb3c5c205836d5bc3352

        • memory/1484-0-0x0000000000400000-0x0000000000410000-memory.dmp

          Filesize

          64KB

        • memory/1740-5-0x0000000000400000-0x0000000000410000-memory.dmp

          Filesize

          64KB

        • memory/1740-6-0x0000000000400000-0x0000000000410000-memory.dmp

          Filesize

          64KB