Analysis

  • max time kernel
    142s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • resource tags

    arch:x64arch:x86image:win7-20220414-enlocale:en-usos:windows7-x64system
  • submitted
    15-07-2022 13:58

General

  • Target

    INVOICE3.xll

  • Size

    891KB

  • MD5

    df41c83b6684fdd3d1d56ffe490a04d7

  • SHA1

    72cee1661333584e3ce4f4063a8f196545141cd6

  • SHA256

    48362e828cc04c978234020490d64473f88a940db1b61f112e5b54f583b5311b

  • SHA512

    66ba4abad68589d5d1af9a525d302200438eb399f5d4713cf185cbf189ee349369d48cf514628b1a3c9eae57b359659fec90a915ce46da0a73bdc35f7bf295af

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 3 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 33 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 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\INVOICE3.xll
    1⤵
    • Loads dropped DLL
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1756
  • C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Windows\explorer.exe
      explorer .
      2⤵
        PID:932
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:292
    • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"
      1⤵
      • Loads dropped DLL
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:820

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • \Users\Admin\AppData\Local\Temp\INVOICE3.xll

      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • \Users\Admin\AppData\Local\Temp\INVOICE3.xll

      Filesize

      256KB

      MD5

      e63db6c4f5f25bf87112178d5df1e8e5

      SHA1

      00fa2c08ddf28b464003f3cd5f4447f65fdda56c

      SHA256

      45ec96468039ebadba9268551b2a9fa7805274d3a8c885e7669e659019b3b2c0

      SHA512

      862c4596f17b321deed958ffc588c4975a6344dd2130f0e806c5386fb726d4de53ed79a43eb07f9bacb5b2ab66e227be2dedb75adf349096d27708aacdbd22c0

    • \Users\Admin\AppData\Local\Temp\INVOICE3.xll

      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • memory/292-65-0x00000000039C0000-0x00000000039D0000-memory.dmp

      Filesize

      64KB

    • memory/820-71-0x000000007397D000-0x0000000073988000-memory.dmp

      Filesize

      44KB

    • memory/820-70-0x000000007397D000-0x0000000073988000-memory.dmp

      Filesize

      44KB

    • memory/820-68-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/820-67-0x0000000072991000-0x0000000072993000-memory.dmp

      Filesize

      8KB

    • memory/820-66-0x000000002FEB1000-0x000000002FEB4000-memory.dmp

      Filesize

      12KB

    • memory/932-62-0x0000000000000000-mapping.dmp

    • memory/932-63-0x000007FEFBD21000-0x000007FEFBD23000-memory.dmp

      Filesize

      8KB

    • memory/1756-54-0x000000002FEE1000-0x000000002FEE4000-memory.dmp

      Filesize

      12KB

    • memory/1756-61-0x00000000725DD000-0x00000000725E8000-memory.dmp

      Filesize

      44KB

    • memory/1756-60-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1756-58-0x0000000075951000-0x0000000075953000-memory.dmp

      Filesize

      8KB

    • memory/1756-57-0x00000000725DD000-0x00000000725E8000-memory.dmp

      Filesize

      44KB

    • memory/1756-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1756-55-0x00000000715F1000-0x00000000715F3000-memory.dmp

      Filesize

      8KB