Analysis

  • max time kernel
    59s
  • max time network
    59s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    26-06-2024 21:04

General

  • Target

    c72c3a367f9fae9b5968a85d366a92f69d4578249f5cc480af5697494f9ea4e7.xls

  • Size

    715KB

  • MD5

    a1d7ed30bb66850eaa404c96c9cc6402

  • SHA1

    fe8757e954b7d144baee4c2a3cd14d9ccb517a9b

  • SHA256

    c72c3a367f9fae9b5968a85d366a92f69d4578249f5cc480af5697494f9ea4e7

  • SHA512

    57c0ad29f4fc7419b30b29fbaef758005d29df166592859a33583af4bfe8af81b0063507e7136babcc4cb16513a1636775403d2b1faad5b58c6a3e01e9bbec6d

  • SSDEEP

    12288:QRsUpcHnXXzNkRKFfsAqdlVDczXZejbeAQjSY4VTZoLtq57kWjuNMfK:QRsSc3DGUFfpqdUzXM/GjS/VTZoIP

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • 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 3 IoCs
  • Suspicious use of WriteProcessMemory 16 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\c72c3a367f9fae9b5968a85d366a92f69d4578249f5cc480af5697494f9ea4e7.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2436
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /target:winexe /out:"C:\Users\Admin\AppData\Roaming\Microsoft\2cxc3qdckbys.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\xuqppv1v0k6z.cs" & "C:\Users\Admin\AppData\Roaming\Microsoft\2cxc3qdckbys.exe"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2920
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /target:winexe /out:"C:\Users\Admin\AppData\Roaming\Microsoft\2cxc3qdckbys.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\xuqppv1v0k6z.cs"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2544
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES1A64.tmp" "c:\Users\Admin\AppData\Roaming\Microsoft\CSC1EF4BF29CDEC440EAD2021E4A88BDEF8.TMP"
          4⤵
            PID:2016
        • C:\Users\Admin\AppData\Roaming\Microsoft\2cxc3qdckbys.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\2cxc3qdckbys.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:2712

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\RES1A64.tmp

      Filesize

      1KB

      MD5

      ca7e2fbf7105da057f81fc0261014397

      SHA1

      b0951e1270b69bd483f0429181e27df387cbd892

      SHA256

      4c71ff325314cf0b7891855b63f6a12e134c46cecc7346520b05b3a586b167b8

      SHA512

      350d6b0ee40f7eac707279b6dd5b5cedc242423814d819383eae8007f3be43ba5b6f85c7a75028422fab8bd77e3d2be9e59447bc26ade2f53211957fe5debdbe

    • C:\Users\Admin\AppData\Roaming\Microsoft\2cxc3qdckbys.exe

      Filesize

      6KB

      MD5

      4da3e2aa0f3489487d11b919f0abd69b

      SHA1

      4c1dfe0701ddbe75de61b2c1b79d16d9bd4fc2ea

      SHA256

      fc4626bf3c08059b40b47f2ece3477421c33e6cd18e19e3fee98b55fd7fdf550

      SHA512

      07c13450c5e97d716272e5697418bcc044d3225a774a89e170309a76ab4cee269a5545d51c107beeeb6f446f445e77c381201c2dbbc5043ab6caf3c83c98261e

    • \??\c:\Users\Admin\AppData\Roaming\Microsoft\CSC1EF4BF29CDEC440EAD2021E4A88BDEF8.TMP

      Filesize

      1KB

      MD5

      512b67aab3e64cf0a24318a01d378418

      SHA1

      471bd14c9c983d9a4d10880f167ebe1beb3744dc

      SHA256

      97972c287395c8c293d6c17ff0ebd37f73e1aea79bdecaa63a338ef3173ac87b

      SHA512

      f07f619829b09f2b1b42c35cedd4ea49f3529b02aa299ad9e28406b3f5afc2ca2232b9becaa8dd27a0b10efc2e2efbdac2530d64297425821697092e9d806968

    • \??\c:\Users\Admin\AppData\Roaming\Microsoft\xuqppv1v0k6z.cs

      Filesize

      2KB

      MD5

      3d6a86624aed949ac6b72ecfac76ff6d

      SHA1

      bdbb6a1619b57c5ee0e8577fc25b74ff29c74e94

      SHA256

      b00fdf715ad530babc4a92749ff05cdeee1eb81069f28fbe4ae27933d74533e0

      SHA512

      b2fc0f8218bd9c8c534adf7c8716bb60f3de94a3e73c9e77515fa927c681d1b7c1fdc1b83a92f5ee5ef75d9a3279cc2db1a3b118332b346148a239555b14a1ae

    • memory/2436-24-0x0000000006450000-0x0000000006550000-memory.dmp

      Filesize

      1024KB

    • memory/2436-31-0x0000000006450000-0x0000000006550000-memory.dmp

      Filesize

      1024KB

    • memory/2436-30-0x0000000006450000-0x0000000006550000-memory.dmp

      Filesize

      1024KB

    • memory/2436-23-0x0000000006450000-0x0000000006550000-memory.dmp

      Filesize

      1024KB

    • memory/2436-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2436-18-0x0000000006450000-0x0000000006550000-memory.dmp

      Filesize

      1024KB

    • memory/2436-1-0x00000000728BD000-0x00000000728C8000-memory.dmp

      Filesize

      44KB

    • memory/2436-45-0x00000000728BD000-0x00000000728C8000-memory.dmp

      Filesize

      44KB

    • memory/2436-46-0x0000000006450000-0x0000000006550000-memory.dmp

      Filesize

      1024KB

    • memory/2712-44-0x0000000000B70000-0x0000000000B78000-memory.dmp

      Filesize

      32KB