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Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18/03/2024, 12:43

General

  • Target

    d38aff8e3ae4e047280632dd62c631b3.exe

  • Size

    1003KB

  • MD5

    d38aff8e3ae4e047280632dd62c631b3

  • SHA1

    fd6e214377054e638c491dcf5c17f9f5b6b9d272

  • SHA256

    ac6caa0b31fa96e62a568e08991009c50c86ac0c739f011f77feb0c65c0523b4

  • SHA512

    854a04c52a2ec35122905f345d9876f70c351794fd5df17115dfdf328383db97443af1fc997b759fcdffd0abc8dc212b1ec67caf9c50a6591569640546cd4e55

  • SSDEEP

    24576:7E1erhTOtHL6VX5TIUzcjukL2CDYibq6/yqLNaF:7bhTKW55TIkcakLz0ibq6yqh

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d38aff8e3ae4e047280632dd62c631b3.exe
    "C:\Users\Admin\AppData\Local\Temp\d38aff8e3ae4e047280632dd62c631b3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:620
    • C:\Users\Admin\AppData\Local\Temp\d38aff8e3ae4e047280632dd62c631b3.exe
      C:\Users\Admin\AppData\Local\Temp\d38aff8e3ae4e047280632dd62c631b3.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2524
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\d38aff8e3ae4e047280632dd62c631b3.exe" /TN ymuVbjyg4de6 /F
        3⤵
        • Creates scheduled task(s)
        PID:2424
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN ymuVbjyg4de6 > C:\Users\Admin\AppData\Local\Temp\EOs27.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2636
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN ymuVbjyg4de6
          4⤵
            PID:2516

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\EOs27.xml

      Filesize

      1KB

      MD5

      947e204e911090d2a389c8f3c2d1e290

      SHA1

      d515fb2744dbecb4e92c0e5e8cfc4a56e7095dfb

      SHA256

      3b33dd6ce1a5839850b773b2c26103eb44fb9131b7f956e34e0d904de621acdf

      SHA512

      21c60a28536defa7b837d962c0dd87fc86fc9dd333cdec91f209e06436559af85c46c2c7afbb7534825d98d754174c74f03d28855c3eb448964d100af2865716

    • \Users\Admin\AppData\Local\Temp\d38aff8e3ae4e047280632dd62c631b3.exe

      Filesize

      1003KB

      MD5

      fe07ec07e9383a1d57865be0e68cb520

      SHA1

      65337dea10cc117a3626c33f627c87a0206b1223

      SHA256

      dd43e02d971b3b1c0695ba9d11a2188c3e3b54eeadc4a2033b2751c39ee8fb24

      SHA512

      0e27e1d39477656c76be03b3609c89bd3ef95add3135b13afe106eff2d259e63999a7b2b340c04e55120ebf35d0ff1a9f5a9fc5f80083902ec950f0570616ca7

    • memory/620-1-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/620-2-0x0000000001660000-0x00000000016DE000-memory.dmp

      Filesize

      504KB

    • memory/620-15-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/620-16-0x0000000022F10000-0x000000002316C000-memory.dmp

      Filesize

      2.4MB

    • memory/620-0-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/620-54-0x0000000022F10000-0x000000002316C000-memory.dmp

      Filesize

      2.4MB

    • memory/2524-19-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/2524-29-0x0000000000390000-0x00000000003FB000-memory.dmp

      Filesize

      428KB

    • memory/2524-26-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2524-21-0x0000000001660000-0x00000000016DE000-memory.dmp

      Filesize

      504KB

    • memory/2524-55-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB