Analysis

  • max time kernel
    113s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 10:54

General

  • Target

    9bd4a61f84988a0588868e71c1c8ae32be7ec2922b700b85d1afbead957c4631.xls

  • Size

    100KB

  • MD5

    97bdee44ba0a2e03552bb1b2bd729f80

  • SHA1

    156796ee51c098e896af360cbb557fd3fe33b1c2

  • SHA256

    9bd4a61f84988a0588868e71c1c8ae32be7ec2922b700b85d1afbead957c4631

  • SHA512

    caf2785e5e1b472bcf9e2c0e084b7b0cdbb75b11d3907a2369047ae744f067076bc84edb4b4be1379dc596e18caf1b0d31352d71cd1ea1e8ce5a409f2eeb5daa

  • SSDEEP

    3072:pe1gxv7yZmspH7+cclKisQ6NqTBun5oIFIhzvY/2jcc0lbxOKrmaxU4/:g1gxv7yZmspH7+cclKisQ6NqTBun5oIH

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\9bd4a61f84988a0588868e71c1c8ae32be7ec2922b700b85d1afbead957c4631.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:1644
    • 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:1760
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1560
    • 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:1488
    • 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/1488-220-0x0000000000000000-mapping.dmp
  • memory/1560-222-0x0000000000000000-mapping.dmp
  • memory/1644-74-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-85-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-58-0x0000000075E51000-0x0000000075E53000-memory.dmp
    Filesize

    8KB

  • memory/1644-59-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-60-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-61-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-62-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-63-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-64-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-65-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-66-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-67-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-68-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-77-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-70-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-71-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-72-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-73-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-267-0x0000000072AED000-0x0000000072AF8000-memory.dmp
    Filesize

    44KB

  • memory/1644-385-0x0000000072AED000-0x0000000072AF8000-memory.dmp
    Filesize

    44KB

  • memory/1644-69-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-76-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-78-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-79-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-81-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-80-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-83-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-82-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-57-0x0000000072AED000-0x0000000072AF8000-memory.dmp
    Filesize

    44KB

  • memory/1644-84-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-86-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-87-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-109-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-75-0x000000000052F000-0x0000000000535000-memory.dmp
    Filesize

    24KB

  • memory/1644-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1644-54-0x000000002F441000-0x000000002F444000-memory.dmp
    Filesize

    12KB

  • memory/1644-55-0x0000000071B01000-0x0000000071B03000-memory.dmp
    Filesize

    8KB

  • memory/1692-221-0x0000000000000000-mapping.dmp
  • memory/1760-219-0x0000000000000000-mapping.dmp