Analysis

  • max time kernel
    104s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2022 12:42

General

  • Target

    bda6477205b2b4fa56d125cf859f4eb9263a143eb05fba9cf06f01acefe3f944.xls

  • Size

    114KB

  • MD5

    90892d9a55d0ab2f1013bd137db6f80a

  • SHA1

    a949744079f4fe70ebab56e2bad77e9c5bfda75c

  • SHA256

    bda6477205b2b4fa56d125cf859f4eb9263a143eb05fba9cf06f01acefe3f944

  • SHA512

    b84e7c963259ce9834017eed42fc67f4ce6e241a64dc86b4834e5af3c51f9ac717fa79dda46635eb8ccf85f7e98e611d7a7c23df7c1762a2b32c21772640dd8d

  • SSDEEP

    1536:7NhhhhXsmKyDjk0zn4YhDLS1sN5YrZ95Kh3UgjoqhWVb36BzQ7ITkR62lvz9OcJY:2gR3WVbKBzQ7ITk9t9NJtXwJ5kjJw

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 3 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\bda6477205b2b4fa56d125cf859f4eb9263a143eb05fba9cf06f01acefe3f944.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:1484
    • 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:1780
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1640
    • 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:288
    • 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:1356

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/288-214-0x0000000000000000-mapping.dmp
  • memory/1356-215-0x0000000000000000-mapping.dmp
  • memory/1484-71-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-63-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-58-0x0000000076BA1000-0x0000000076BA3000-memory.dmp
    Filesize

    8KB

  • memory/1484-72-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-59-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-61-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-62-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-73-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-65-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-64-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-67-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-66-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-68-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-74-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-54-0x000000002F481000-0x000000002F484000-memory.dmp
    Filesize

    12KB

  • memory/1484-70-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-60-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-57-0x0000000072C8D000-0x0000000072C98000-memory.dmp
    Filesize

    44KB

  • memory/1484-69-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-75-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-76-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-77-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-78-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-80-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-79-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-81-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-103-0x0000000000454000-0x0000000000458000-memory.dmp
    Filesize

    16KB

  • memory/1484-373-0x0000000072C8D000-0x0000000072C98000-memory.dmp
    Filesize

    44KB

  • memory/1484-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1484-55-0x0000000071CA1000-0x0000000071CA3000-memory.dmp
    Filesize

    8KB

  • memory/1484-371-0x0000000072C8D000-0x0000000072C98000-memory.dmp
    Filesize

    44KB

  • memory/1640-216-0x0000000000000000-mapping.dmp
  • memory/1780-213-0x0000000000000000-mapping.dmp