Analysis

  • max time kernel
    101s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 20:29

General

  • Target

    dfac5bfaada12c698dd7467346078adea88eacd0466195d276cf60fcbaf41ef2.xls

  • Size

    146KB

  • MD5

    498ba7ac5296b5f3e807d13a6cfbb592

  • SHA1

    cd1f735934c657331673d8413c1964c8deb9bfd5

  • SHA256

    dfac5bfaada12c698dd7467346078adea88eacd0466195d276cf60fcbaf41ef2

  • SHA512

    344ef9e67c66cd613e075e24cffaa089398a66ad34ab604b44fbfac5666b634657d8b40bd0f1b29c85f21b55300f3b6ad208ae60bdf90d6aa300c670f1a7a60f

  • SSDEEP

    1536:Jtttgod7eOtuhvWVbrzQ7ITkVHdvMg62ldWK6UATAisON+cJtXwEq6:1EWVbrzQ7ITkzindJtXw36

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • Deletes itself 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
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 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\dfac5bfaada12c698dd7467346078adea88eacd0466195d276cf60fcbaf41ef2.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1952
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1516
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1712
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1692

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/848-75-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-61-0x00000000055A3000-0x0000000005608000-memory.dmp
    Filesize

    404KB

  • memory/848-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/848-54-0x000000002F7B1000-0x000000002F7B4000-memory.dmp
    Filesize

    12KB

  • memory/848-58-0x0000000075ED1000-0x0000000075ED3000-memory.dmp
    Filesize

    8KB

  • memory/848-73-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-60-0x00000000055A3000-0x0000000005608000-memory.dmp
    Filesize

    404KB

  • memory/848-74-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-64-0x00000000055A3000-0x0000000005608000-memory.dmp
    Filesize

    404KB

  • memory/848-85-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-86-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-84-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-83-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-82-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-81-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-80-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-79-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-78-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-77-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-76-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-57-0x0000000072A6D000-0x0000000072A78000-memory.dmp
    Filesize

    44KB

  • memory/848-55-0x0000000071A81000-0x0000000071A83000-memory.dmp
    Filesize

    8KB

  • memory/848-59-0x00000000055A3000-0x0000000005608000-memory.dmp
    Filesize

    404KB

  • memory/848-72-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-71-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-70-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-69-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-68-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-67-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-66-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-65-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-63-0x00000000055A3000-0x0000000005608000-memory.dmp
    Filesize

    404KB

  • memory/848-62-0x00000000055A3000-0x0000000005608000-memory.dmp
    Filesize

    404KB

  • memory/848-87-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-109-0x00000000007C2000-0x00000000007CB000-memory.dmp
    Filesize

    36KB

  • memory/848-385-0x0000000072A6D000-0x0000000072A78000-memory.dmp
    Filesize

    44KB

  • memory/848-223-0x0000000072A6D000-0x0000000072A78000-memory.dmp
    Filesize

    44KB

  • memory/1516-222-0x0000000000000000-mapping.dmp
  • memory/1692-221-0x0000000000000000-mapping.dmp
  • memory/1712-220-0x0000000000000000-mapping.dmp
  • memory/1952-219-0x0000000000000000-mapping.dmp