Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2023 03:40

General

  • Target

    26b29c539d0d35fd414e36884c380e0e.docx

  • Size

    1.4MB

  • MD5

    26b29c539d0d35fd414e36884c380e0e

  • SHA1

    dc71af654eaca13a13aeb3de6f58b685d8580093

  • SHA256

    51b481798f54ef86db26e907f44e871dae40a9c0c309df32835bfcea768b660b

  • SHA512

    6342dbb68fcfd14d4276715d3eacb005fea18366eed16f0d76f5ed40836e52fa8cff65e8ea6cc68e33ce9aa3c272166bef75afaf95b7a8077f581db7d2e6da21

  • SSDEEP

    24576:TB7NnhXv9ziQVmC8cbqXtk5OT6kLXhpgMUGnrvJf8EiWXZ8L0chjXq:TB75hFe5C8yGthTSMsEDOphjXq

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 FindShellTrayWindow 2 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\26b29c539d0d35fd414e36884c380e0e.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 FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:908

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\FSD-{2B0E7B40-4CEC-46C2-BEC0-C137960E9F63}.FSD

      Filesize

      128KB

      MD5

      367eebaec4f90d3bc886d151ff138374

      SHA1

      f78c3a2a5271ea773cef5f77c9ea18d5e365c51b

      SHA256

      4da6a6f5e6d2726a87de717f9f2de5016fdad1edf37c149ee41f1c300c35b39a

      SHA512

      95d31a5b0ddbd8e827b7aaf744ba511ebf0c9282b021d74afee44576348e87b42e469cac69d278b74e5c96f996bc13a3e1bc12700040eb5141532f6ff3c58157

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

      Filesize

      128KB

      MD5

      aa5a7c06478a35084419c3014b194a88

      SHA1

      ac9469395d4d073db6aeef9c2eb3d14f8deeafba

      SHA256

      f085e452f00cb46bf0a62e3d2699460c7987d6873481c0f5a180004495f9e642

      SHA512

      1dff451736a550f70c755bd45d9708ae3550f755717a91bab256363d607123d7bfee4db6a1b873efcd758d33a2b50da1422a9ea91358744d669f90d8c3104fc0

    • C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\LocalCacheFileEditManager\FSD-{1CE4F454-18C0-4F19-A007-3E730732AADB}.FSD

      Filesize

      128KB

      MD5

      3a5ff88e5c9058622d96f1a3d97a8baf

      SHA1

      54c1248607bbbd51a4b64579376d4890782479d9

      SHA256

      3d7b2f399bfcd55654743a7d4845a558baf2394e4226e537b910ecc5126a6079

      SHA512

      b9d50ee66c1286163b4599e1dda26cc302d3bd4ce7c672e78fa6ad4e9809a0133dc3890f9a9fc8279aaa7c2272b8316fa7825b40a066e241ea3a95270109b038

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\RKLYQ9MM\precision[1].htm

      Filesize

      1KB

      MD5

      fc82705c0bf6ff882009e063afb8f43d

      SHA1

      1bbe848780cd5d0e222f26befdab188ae19f77d0

      SHA256

      db191ed1ca4b331e6d359d6e93a8467afe4e94434264f101f84d97f52ff532fb

      SHA512

      ec2842c94ea073a11c809cdd121cbd1e85a1616b00d14edabf14504b979ed20c38415f04f672ad53cabdca2f017e260d18f4783417705d678ff01ef073ded6c1

    • C:\Users\Admin\AppData\Local\Temp\{E68B50D0-B51D-4998-B1F4-DD880F60A883}

      Filesize

      88KB

      MD5

      0b4f2b4a59c5a4133eb6796cbf823e68

      SHA1

      313a8f80b4c8af1ebb304a2af29a0ec44f01fb43

      SHA256

      fe8005ae68ebbff921fa323484892b42eef03c672c702d8476fb17201465767b

      SHA512

      6be67d4456aaf2fa859adb22cbc991fcae426e700d7a285c2685f065903fa186673067f1766393b889df1a31b91a1d9bfcbbca247d15a80fe4c43f4a7d154f36

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

      Filesize

      20KB

      MD5

      5ade74cd84bec08c8667b16416a13efc

      SHA1

      b4ce11d93d4e6bc3a26b786135b50907cd703c0c

      SHA256

      5f0821626356d7ef575c08721e516c2c1a97b8805b8f5977b6a907115c56423a

      SHA512

      9edf829217ff4c26c9cf9b8331d04d399b4061d22f466571545a8859d64c8232ef768dd098a27c0b7b7e17623f0302472f84b5720035ebf0d84e18e7b4d509d5

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/2316-0-0x000000002FDD1000-0x000000002FDD2000-memory.dmp

      Filesize

      4KB

    • memory/2316-2-0x00000000716AD000-0x00000000716B8000-memory.dmp

      Filesize

      44KB

    • memory/2316-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2316-125-0x00000000716AD000-0x00000000716B8000-memory.dmp

      Filesize

      44KB

    • memory/2316-151-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2316-152-0x00000000716AD000-0x00000000716B8000-memory.dmp

      Filesize

      44KB