Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14/03/2024, 03:38

General

  • Target

    b2540f88d50f47eea407048f20ae3eea.exe

  • Size

    465KB

  • MD5

    b2540f88d50f47eea407048f20ae3eea

  • SHA1

    e43bf507f63f8c4dc43ed118defdf2d1af7e6642

  • SHA256

    a4dce07d8b19d30313f6a41627649420e1217b6559236c1dcf45bb99d586bc24

  • SHA512

    73ca967bd71a91205390d9d6c8863035008e33fc9ec91969f0c29e005fd6c58764e6bde6a0ff48f7eedd6ebe96f1e893b942782ae9c04265412de3d7d49732c2

  • SSDEEP

    12288:Bb4bZudi79L0dbHVRK7IbczHNJWY+7AA:Bb4bcdkL0uHtJ9+

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2540f88d50f47eea407048f20ae3eea.exe
    "C:\Users\Admin\AppData\Local\Temp\b2540f88d50f47eea407048f20ae3eea.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2200
    • C:\Users\Admin\AppData\Local\Temp\3F32.tmp
      "C:\Users\Admin\AppData\Local\Temp\3F32.tmp" --helpC:\Users\Admin\AppData\Local\Temp\b2540f88d50f47eea407048f20ae3eea.exe 843F52FD2F217298243562908E5EA4C5C8D6BD03A23D5C04FF1202D5F20D2217FFB57B7F8FE47FE97BB64E98641405EC1612497C0C87BC53DCF1C50ACF83F41A
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:1712
      • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
        "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\b2540f88d50f47eea407048f20ae3eea.doc"
        3⤵
        • Drops file in Windows directory
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Windows\splwow64.exe
          C:\Windows\splwow64.exe 12288
          4⤵
            PID:2960

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\b2540f88d50f47eea407048f20ae3eea.doc

      Filesize

      35KB

      MD5

      a6b03fc9e5439b7504ba08010a960962

      SHA1

      e93a74f35ac1ed020158642eb1f2087fd31fc7c6

      SHA256

      b3b306a9618a08a003443e00e8ce2fcb14040775c3aeadc11cf120668e98dff1

      SHA512

      decbe4fa7eec0833a27acbde8b4de099124aa42e551f710fb615e6fc5aa0056ce9e44fc282e4930b1a669a1e012700b2c79cebc8a7b8ee4c66cfc29c800cddd0

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      5b4ea0f425f77ec654b6fe43f92c7035

      SHA1

      ab48735157a571818317c99ae52fcaaa3f341bc4

      SHA256

      c8d8759ea8f74407dd64ffb0a4489d8a4893ba1c0c75806317d2cac5f85bcb53

      SHA512

      1ce80f2c03b586b568fe957d4906b52f42fa05350098a78d73999e505eebc16024265ddde9cbfd9bca079cae1c3c6563fd982cd35d32fd7c16aa29d8d8d2b697

    • C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • \Users\Admin\AppData\Local\Temp\3F32.tmp

      Filesize

      465KB

      MD5

      c0019e068aa57fbf65de08b0f9ecf390

      SHA1

      6f029b01b97b1e5d9a871a040749abb282b3e807

      SHA256

      443e6563fd6b308c989184ddebc05cc503ac77e512eb1fa6eb0aef35109103f5

      SHA512

      ba4c29df94d951c1809ae929b0553eada603825f41ebfae38c892455a096dc1b4e0d44923dbd4d596d53bdda645296615e5043a411f2c7bfd6e290c7e46bea6f

    • memory/2748-7-0x000000002FC71000-0x000000002FC72000-memory.dmp

      Filesize

      4KB

    • memory/2748-8-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2748-9-0x00000000711AD000-0x00000000711B8000-memory.dmp

      Filesize

      44KB

    • memory/2748-28-0x00000000711AD000-0x00000000711B8000-memory.dmp

      Filesize

      44KB

    • memory/2748-43-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB