Analysis

  • max time kernel
    6s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    02/12/2022, 01:56

General

  • Target

    b0913253fc4ed9a0636cda22fc7260cae0f73259ab7affb99a64e382787f25ac.exe

  • Size

    13KB

  • MD5

    8561016959360452c6c384fcb09b8cc2

  • SHA1

    41b981f5c7cfefcedca4b48474a7492cfecb8d49

  • SHA256

    b0913253fc4ed9a0636cda22fc7260cae0f73259ab7affb99a64e382787f25ac

  • SHA512

    b13db0d2b4035e3e8cfddeb630e96391636a46775a5898de91c6c33360a6c3f37904023a24df7906ebf0016ea4a0b1fd69f8d01d7c480d9e187732b7c1584944

  • SSDEEP

    192:gyUrwy5wrFbyNckCSWJTVWP38WpbLog00/pzpd:gPwRbOCS4WP38W+Rcpzp

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b0913253fc4ed9a0636cda22fc7260cae0f73259ab7affb99a64e382787f25ac.exe
    "C:\Users\Admin\AppData\Local\Temp\b0913253fc4ed9a0636cda22fc7260cae0f73259ab7affb99a64e382787f25ac.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Users\Admin\AppData\Roaming\Windows\windef.exe
      "C:\Users\Admin\AppData\Roaming\Windows\windef.exe"
      2⤵
      • Executes dropped EXE
      PID:364

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\Windows\windef.exe

          Filesize

          13KB

          MD5

          8561016959360452c6c384fcb09b8cc2

          SHA1

          41b981f5c7cfefcedca4b48474a7492cfecb8d49

          SHA256

          b0913253fc4ed9a0636cda22fc7260cae0f73259ab7affb99a64e382787f25ac

          SHA512

          b13db0d2b4035e3e8cfddeb630e96391636a46775a5898de91c6c33360a6c3f37904023a24df7906ebf0016ea4a0b1fd69f8d01d7c480d9e187732b7c1584944

        • C:\Users\Admin\AppData\Roaming\Windows\windef.exe

          Filesize

          13KB

          MD5

          8561016959360452c6c384fcb09b8cc2

          SHA1

          41b981f5c7cfefcedca4b48474a7492cfecb8d49

          SHA256

          b0913253fc4ed9a0636cda22fc7260cae0f73259ab7affb99a64e382787f25ac

          SHA512

          b13db0d2b4035e3e8cfddeb630e96391636a46775a5898de91c6c33360a6c3f37904023a24df7906ebf0016ea4a0b1fd69f8d01d7c480d9e187732b7c1584944

        • memory/364-59-0x000007FEF3550000-0x000007FEF3F73000-memory.dmp

          Filesize

          10.1MB

        • memory/1376-54-0x000007FEF3550000-0x000007FEF3F73000-memory.dmp

          Filesize

          10.1MB

        • memory/1376-55-0x000007FEFB9E1000-0x000007FEFB9E3000-memory.dmp

          Filesize

          8KB