Analysis

  • max time kernel
    102s
  • max time network
    59s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    18-05-2023 14:34

General

  • Target

    0D9A51628CB6EF7CFA6074D8C6E89F61E2321BFBB39B7CE9A2E2D1972E0E163E.docx

  • Size

    11KB

  • MD5

    c94062b9a586d15cd884246aefb0a75b

  • SHA1

    22a13b5db65f00a9e91e8c37e496df25b5276e77

  • SHA256

    0d9a51628cb6ef7cfa6074d8c6e89f61e2321bfbb39b7ce9a2e2d1972e0e163e

  • SHA512

    18c9d7f96317d483093b5966cadb82e45a2310eea351b54f928554bef8c439cfd454a5a9ba0e1fe3ea1322d798e4d3c5cb9ed7496c545af3e5d822ecdba36fdb

  • SSDEEP

    192:CtNCWUyn0i13pNXqkOcPiYFLwzvdX6Ptpwjnw+umHBCusiWVd:aNxUyn0i13LROEiOLkX6Ujnw+3VyVd

Score
7/10

Malware Config

Signatures

  • Abuses OpenXML format to download file from external location 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • 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\0D9A51628CB6EF7CFA6074D8C6E89F61E2321BFBB39B7CE9A2E2D1972E0E163E.docx"
    1⤵
    • Abuses OpenXML format to download file from external location
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:856
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1064

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\FSD-{B6DD34C2-8B7F-4EE8-96B4-CE3A3C5B80D0}.FSD
      Filesize

      128KB

      MD5

      36dacdc49f80717c16341626fc7d25be

      SHA1

      0de799d7feea05136ba7a2a9cbea88cde9b16d5a

      SHA256

      da946cfe649b4feaa4c9eb43d7dd4f5bdfe22ae61dda087317d0d194a4554859

      SHA512

      062d28a94564c157d45ca708d41bf2de7f0a21b48fd33edeccf399d6045e2c345802aab8149ec8348c7f14bf392ab7b6fd1ee0339eb08217ba9fb9bb40918592

    • C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\LocalCacheFileEditManager\FSD-CNRY.FSD
      Filesize

      128KB

      MD5

      dfaa181055c193bde9bf394dad667974

      SHA1

      8d23f665e162531f8fcf6612eb4b8cd166767535

      SHA256

      14040618d66d4bf8f911177c5333a39f626d1f05873afa1be68eb1ee81dc853d

      SHA512

      b122086beeaa774f1c46eff613401b51bcac73d6d7b68b77a43fe542d645f0412cd151c2689718fabec5dce31c2705262332755d03bb5c40f67a0212cbf2ce16

    • C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\LocalCacheFileEditManager\FSD-{4C40EBFF-2C60-4933-BA5B-6E55083579A8}.FSD
      Filesize

      128KB

      MD5

      9d14b4e40be5a7d3fa29a1973ed7b280

      SHA1

      699afef8375f86113fdcda126cec1ce56b64f90f

      SHA256

      be8782cccefe634f89b403dff80e237e118dbb2e4a25c576e812cd7ba06b24e1

      SHA512

      97dc14dd8ebc5cecb8d2f02d24d04152b69af6dcd2ce698f34ea90d7e6f29fcbbcbf6b6849b35a65de95c57a54021bc884cdf90aca09b665e454468b882017dd

    • C:\Users\Admin\AppData\Local\Temp\{9C09E333-A9D8-432C-98F2-08B2DB08BE39}
      Filesize

      128KB

      MD5

      5df5590e1d36800bfd604a5475b46c72

      SHA1

      4a84959da14c682f1dd0cec77c8c090bae10bba7

      SHA256

      c728e99f3a478f6f55c7901fd7e123f600908f0a07a899c05f6bb58a3ff3787a

      SHA512

      dc7c578de6ce50573e391d9bf2fd0ad5382370b0fd99064073667ef6e6c3f285bf6534423b4ff3241964adc400ae84aa6f06d638acf35d3093870405627ace7c

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

      20KB

      MD5

      98f5bdc6dffb026d54b8624429565004

      SHA1

      7c878a32ec1975a50f2eabd869ee1f1c00d70fc8

      SHA256

      344e6b830242ebd12ee6bbd35b94c3b0f6c3143c8253898bfcf8032b15aab641

      SHA512

      54fa49308086ca9a057f98ab407b72eca120090faec5bc47f85eb113267584f9de0c7253061a860f0dd440a5ebb32cd6c093df95ad93387334bcc76fbaa700a6

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

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/856-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/856-148-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB