Analysis

  • max time kernel
    60s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    26-06-2024 21:10

General

  • Target

    f036e1ccae9f4a1f50f3d75cead709e3a817f99c39adabc7573a2143f64e7858.xls

  • Size

    715KB

  • MD5

    e3cf707b9c567f6d5ff98d7eaa16ff6d

  • SHA1

    ec7c59cc1157cbffc1c5b19475f5f93d2982e2d0

  • SHA256

    f036e1ccae9f4a1f50f3d75cead709e3a817f99c39adabc7573a2143f64e7858

  • SHA512

    06c0e9ea87cb09b0e10392d6beeed74c9d58d23a192268f1efee4868526cdf4ce376ed6a67da210a7dd7e1bd442f6a41679d691b957d13f8d5dde9c1442a189f

  • SSDEEP

    12288:iRsUpcHnXXzNkRKFfsAqdlVDczXZejbeAQjSY4VTZoLtq57kWjuNMfK:iRsSc3DGUFfpqdUzXM/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\f036e1ccae9f4a1f50f3d75cead709e3a817f99c39adabc7573a2143f64e7858.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:1152
    • 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\pzfpru0poir5.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\kh71cyo84r0b.cs" & "C:\Users\Admin\AppData\Roaming\Microsoft\pzfpru0poir5.exe"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2496
      • 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\pzfpru0poir5.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\kh71cyo84r0b.cs"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2684
        • 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\RES9463.tmp" "c:\Users\Admin\AppData\Roaming\Microsoft\CSC3A62FF1515D148C6A0C3639A3160F62.TMP"
          4⤵
            PID:580
        • C:\Users\Admin\AppData\Roaming\Microsoft\pzfpru0poir5.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\pzfpru0poir5.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:2472

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\RES9463.tmp

      Filesize

      1KB

      MD5

      8838979ea409703c07e006e59b5de142

      SHA1

      fcdc4fddacd0799421203ffd70ea2fa641a1f92a

      SHA256

      c43f1dda5dc5af7c28d37de45b8ff11ccaae8078218c5a704ee5c80383e2519f

      SHA512

      8debe74d0d3b7d87a7b624ad0896e717d8ebc302fbf0dfc182d1c5d60dbf7cf30f1950aedc67ac0b3de508a06164c16b8c4cbd0fb63af0f254a37d3ef82e8392

    • \??\c:\Users\Admin\AppData\Roaming\Microsoft\CSC3A62FF1515D148C6A0C3639A3160F62.TMP

      Filesize

      1KB

      MD5

      1a09f50b287bb03a1adf468ecb2dc314

      SHA1

      193a95aa5422f0b38d4227e0391a87a3d419aa9b

      SHA256

      8df6b2740018262bf87a273f66fb24475e341a5e8f61ec4e6f3515f2953843ad

      SHA512

      b4cdaf4df0b3b6dbf451fb8906edfb54e7c92f00f09fc3eaf54d6afdca86c3c0d7a7332a2b49ff74abaab97b71253cb51c2c019820db37b9a4a04a513fea1d17

    • \??\c:\Users\Admin\AppData\Roaming\Microsoft\kh71cyo84r0b.cs

      Filesize

      2KB

      MD5

      3d6a86624aed949ac6b72ecfac76ff6d

      SHA1

      bdbb6a1619b57c5ee0e8577fc25b74ff29c74e94

      SHA256

      b00fdf715ad530babc4a92749ff05cdeee1eb81069f28fbe4ae27933d74533e0

      SHA512

      b2fc0f8218bd9c8c534adf7c8716bb60f3de94a3e73c9e77515fa927c681d1b7c1fdc1b83a92f5ee5ef75d9a3279cc2db1a3b118332b346148a239555b14a1ae

    • \Users\Admin\AppData\Roaming\Microsoft\pzfpru0poir5.exe

      Filesize

      6KB

      MD5

      82766f630c3054021071d0143b2cfca7

      SHA1

      167e726804c8c663deee151aa754566d54ce1e44

      SHA256

      85953c57b2eb1a210fab39d53d7eeba6380614db9ec90c545835810978b4e17a

      SHA512

      5796849410ac20afcc7a984ca90d84f6d3653fa86cd9ac0578ce3ee6b55589d7378f433539765270e87f45786ea66d1d3a96c704c11c67b95c04d68974f5639a

    • memory/1152-12-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-9-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-25-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-24-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-23-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-22-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-21-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-20-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-19-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-18-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-17-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-16-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-14-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-13-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1152-11-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-10-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-30-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-8-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-7-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-6-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-5-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-4-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-2-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-28-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-15-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-29-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-26-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-3-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-1-0x0000000072B4D000-0x0000000072B58000-memory.dmp

      Filesize

      44KB

    • memory/1152-44-0x0000000000330000-0x0000000000430000-memory.dmp

      Filesize

      1024KB

    • memory/1152-43-0x0000000072B4D000-0x0000000072B58000-memory.dmp

      Filesize

      44KB

    • memory/2472-42-0x0000000000080000-0x0000000000088000-memory.dmp

      Filesize

      32KB