Analysis

  • max time kernel
    151s
  • max time network
    169s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22/12/2023, 14:11

General

  • Target

    b9d72d1c9c8b68ab90f20104510f7788.exe

  • Size

    821KB

  • MD5

    b9d72d1c9c8b68ab90f20104510f7788

  • SHA1

    93c9138ef2fa00636701c26abd5b97c43f854f9f

  • SHA256

    fe483a42cd66f760774449e8fcdabd303640476b119c8a2d1d053dce41e5f19e

  • SHA512

    689216add468e91ecf6d8121edc5b5ca61e77e6e1a1230bde2491c8aea86909d46ad2ece6bd818e5f200a3194975f704d2f8b0c6029c010f42730693b8a79080

  • SSDEEP

    12288:tiRbwtuIZcR7yb4QpfMjQbpgE4PhR7sla0cTREgCflO9dJ5IECpxOokLZsCtQw1l:UsusL0jNPvAPsLCcjukL2CDYO

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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\b9d72d1c9c8b68ab90f20104510f7788.exe
    "C:\Users\Admin\AppData\Local\Temp\b9d72d1c9c8b68ab90f20104510f7788.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2988
    • C:\Users\Admin\AppData\Local\Temp\b9d72d1c9c8b68ab90f20104510f7788.exe
      C:\Users\Admin\AppData\Local\Temp\b9d72d1c9c8b68ab90f20104510f7788.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2856
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\b9d72d1c9c8b68ab90f20104510f7788.exe" /TN x1iLRz9v069a /F
        3⤵
        • Creates scheduled task(s)
        PID:2880
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN x1iLRz9v069a > C:\Users\Admin\AppData\Local\Temp\ZfEFS3FOY.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN x1iLRz9v069a
          4⤵
            PID:2740

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ZfEFS3FOY.xml

      Filesize

      1KB

      MD5

      a210c1b79b6ab04f7314c9551e8bf973

      SHA1

      355041d2bf3d99e5ac3354a34013dd96f1b9af8a

      SHA256

      947e1c4d03714316c2fc819da2522e596e80e1632e980785845c836138d49fe8

      SHA512

      f59935f04aeeb116080a239edcd55a1c73deff7d9cee53665807edcfdcaffa0f76cc4e8851f9a35701672535ea06a6d70d7e5dd99e9b150fa86e26b047e8a1f8

    • C:\Users\Admin\AppData\Local\Temp\b9d72d1c9c8b68ab90f20104510f7788.exe

      Filesize

      198KB

      MD5

      db4ba6e5f3bf8e9740719dda25757c42

      SHA1

      748ce4d34caf877ea92a3d5e5aa0f2d5fd86d273

      SHA256

      d44604c2102330b2e31daed2a3f2eee5f9a66848da885dfb371fa22a6aca3233

      SHA512

      55860218fa890da8457ebdf357b95eafbf5d4066d173260d55f84d7e98ce65913bfe2990ecb8e752607257e054a191656767b40db9a2ef1425270fdd9bdee31f

    • \Users\Admin\AppData\Local\Temp\b9d72d1c9c8b68ab90f20104510f7788.exe

      Filesize

      283KB

      MD5

      76d9584616ec3dd4da38214c6edfbe21

      SHA1

      d400f7519d05cbed36f66bdd17f9110c57364bc5

      SHA256

      3d1b3c1b1b16d6dab0489adf00249d62ac916dfb31ffec9ff85db7533b6060da

      SHA512

      12d1ed0215ed043bc42fd2138d41c660d4014f1b072a3bb3e02202ff094780802c00a34aeffa5571788c2f1118bab706cf0d1b3075a83d4c2b5711ff84554804

    • memory/2856-31-0x00000000001A0000-0x000000000020B000-memory.dmp

      Filesize

      428KB

    • memory/2856-20-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/2856-22-0x0000000000220000-0x000000000029E000-memory.dmp

      Filesize

      504KB

    • memory/2856-26-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2856-53-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/2988-4-0x00000000001A0000-0x000000000021E000-memory.dmp

      Filesize

      504KB

    • memory/2988-16-0x0000000023030000-0x000000002328C000-memory.dmp

      Filesize

      2.4MB

    • memory/2988-15-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/2988-0-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/2988-1-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB