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Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2023, 06:45

General

  • Target

    0c8b07e62777ce16587245855942bae8.exe

  • Size

    144KB

  • MD5

    0c8b07e62777ce16587245855942bae8

  • SHA1

    3cf8b7b1a355ce495368d55f3019a3db41c709fe

  • SHA256

    c21a3c61209d1cf0a29345ef04ebed09104227f9d8e4e45aef32879608b4f186

  • SHA512

    5de24ac9ad5b35bfa05b249d6ce55967fd10b60638167b896170f473353f4f943346ad83ee92e9663b6d5fe4d3ba5e4b214e8458e50046d39116034f7c7f2d95

  • SSDEEP

    3072:EArud5mUWr4Ux07unBSXBKBl4VsSXBKBlnxnMLFLZ8CgiAE:EUdUWr460Bi6s0Bi2QCgvE

Score
7/10

Malware Config

Signatures

  • Drops startup file 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 use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c8b07e62777ce16587245855942bae8.exe
    "C:\Users\Admin\AppData\Local\Temp\0c8b07e62777ce16587245855942bae8.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1352
    • 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\0c8b07e62777ce16587245855942bae8.exe~~.doc"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2728
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2256

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\0c8b07e62777ce16587245855942bae8.exe~~.doc

      Filesize

      20KB

      MD5

      d37c7a7c5cbda96e1a7f3029e34c07a2

      SHA1

      b32a4ef61fc09b2176724c6754302b3dd4f0af05

      SHA256

      38d7c0bda1de1cbdda9c2a9a7f782cb0768256516afd9468b02a71d104f46834

      SHA512

      d4c33e95ec63d2da44a6f1b4b7b8cb2cf7fe872075507a9ea097cd33f910dcd50de34a3dc1a3f8a913755dc47f3f318757ea6be73af4b35a4bf606aaaaac10b7

    • C:\Users\Admin\AppData\Roaming\Microsoft\MHSTSEBK.exe

      Filesize

      101KB

      MD5

      94af5c4d64df7b5a920e11acf6b287c5

      SHA1

      40ad9ad316d03dc2895acf8dbb72d175e634aade

      SHA256

      372d7b629c3215e3075b69087218073789eb0192e6c5f3209d589b8372117903

      SHA512

      e6b58ec359531e66ba3663c04d9f2dab3aaed3bc6e2155aa080679f8c549ddfebff89254e85693d700f6b66bc96ae0ff5816c2c70a04bf4592e438a9ac48d201

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

      Filesize

      20KB

      MD5

      7408a975c522d3532ba080f7c3db4b46

      SHA1

      d97ee72e7ebbc69fe7629f07ab2b3c0d66969024

      SHA256

      3f7aad733184310c67351eccf969ab6d8e7e17fc29a5d5884bc308ca2ec00e1c

      SHA512

      a9312db6f560b5ee96908c9dbbf69700d779fb35b49c638e54df2de8ac2a5bdbe45140205357a04f67e5283640eae355687f12fe66aa6f737def6919a63bd46f

    • C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryES0c0a.lex

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/1352-34-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2728-14-0x000000002F351000-0x000000002F352000-memory.dmp

      Filesize

      4KB

    • memory/2728-15-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2728-16-0x0000000070BFD000-0x0000000070C08000-memory.dmp

      Filesize

      44KB

    • memory/2728-37-0x0000000070BFD000-0x0000000070C08000-memory.dmp

      Filesize

      44KB

    • memory/2728-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB