Analysis

  • max time kernel
    118s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    10/10/2023, 21:46

General

  • Target

    0e9dfe4666c16b2f1298f6c07653de476d8642af1eab5a15de25c249471bfd73_JC.xls

  • Size

    1.2MB

  • MD5

    8d1af21aac33869bc9ee5bc8e4b563e3

  • SHA1

    747f004c6a808a8486861c5e4acc7ee13a8deb94

  • SHA256

    0e9dfe4666c16b2f1298f6c07653de476d8642af1eab5a15de25c249471bfd73

  • SHA512

    cc2988d18a921742c47e253d1935f73297c5fa326e389a273b392698e5925ad59b45d25fc2551e0d940bbc62f50bec14b26eb48ef056e6a4e07f9b510d1b7acf

  • SSDEEP

    24576:RWQmmav30xSZyEw6VdUhrZyGw6V9UCkNa2ZbvMIHERgrpuvPwUx:gQmmQ306k6VWy6VWHvjHr9un/

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\0e9dfe4666c16b2f1298f6c07653de476d8642af1eab5a15de25c249471bfd73_JC.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2772
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Launches Equation Editor
    PID:2696

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\219CBC2A.emf

          Filesize

          1.4MB

          MD5

          a01b9617553432807b9b58025b338d97

          SHA1

          439bdcc450408b9735b2428c2d53d2e6977fa58c

          SHA256

          7a0426ed2e2349916969ff7087c0f76089fb8ce7f4627f3d11ccbc1aaefcedce

          SHA512

          312cc2563fa865d6a939fea85a520627c73ed9a95bafc98c89495f21d535dc658825be74b64f0f5c5815d1d234fc6e77a71779247e4973e39ba8dccec2f09bee

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\31B93ABC.emf

          Filesize

          238KB

          MD5

          4e3502273e2ebb9b2b6d1091c4ad6414

          SHA1

          2e2a52d61dab9e2085ed8a1b6ea9a5a12a7e74bb

          SHA256

          fadaf3bca1c64ca8cfa85e73fbd6e41862b9785fe81faa52513e5cc0459c413e

          SHA512

          0a37234390bfbd2349db0ea4b68d04ee9e7b89bd7c6a8b4bfc2ec3d54ce29e0cfbd1306117f6c2f4eb750a13360610a1e1e1283d88ad49d0d11fadd0fd9b5e41

        • memory/2772-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/2772-1-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

          Filesize

          44KB

        • memory/2772-8-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

          Filesize

          44KB

        • memory/2772-14-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/2772-27-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

          Filesize

          44KB