Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 14:41

General

  • Target

    7FC0385DBFD6DC3BC7AA291B9715759B1EAA0D112907023FF0F4139AB76E8FFB.xls

  • Size

    217KB

  • MD5

    fb248514ed0b295694c253b87ee6ec28

  • SHA1

    fd81692060318518baa2317e1f5539b86193f9c3

  • SHA256

    7fc0385dbfd6dc3bc7aa291b9715759b1eaa0d112907023ff0f4139ab76e8ffb

  • SHA512

    262e33c5f2eda1627572e1b77b74f0a4cd9fbc3c7511c18978da3712fd8f148111e7f30dc660b830f2cd5ff0f1188e912aec7a6cce1b0456ffb5978570aee138

  • SSDEEP

    6144:OKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgIyY+TAQXTHGUMEyP5p6f5jQmX:bbGUMVWlbX

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://aprendeconmireia.com/images/wBu/

xlm40.dropper

http://updailymail.com/cgi-bin/gBYmfqRi2utIS2n/

xlm40.dropper

https://akuntansi.itny.ac.id/asset/9aVFvYeaSKOhGBSLx/

xlm40.dropper

http://swiftwebbox.com/cgi-bin/vNqoMtQilpysJYRwtGu/

Signatures

  • Process spawned unexpected child process 4 IoCs

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

  • 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 SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 28 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\7FC0385DBFD6DC3BC7AA291B9715759B1EAA0D112907023FF0F4139AB76E8FFB.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:1948
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:960
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:688
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1016
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:796

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/688-62-0x0000000000000000-mapping.dmp
  • memory/796-66-0x0000000000000000-mapping.dmp
  • memory/960-60-0x0000000000000000-mapping.dmp
  • memory/1016-64-0x0000000000000000-mapping.dmp
  • memory/1948-54-0x000000002F841000-0x000000002F844000-memory.dmp
    Filesize

    12KB

  • memory/1948-55-0x00000000710D1000-0x00000000710D3000-memory.dmp
    Filesize

    8KB

  • memory/1948-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1948-57-0x00000000720BD000-0x00000000720C8000-memory.dmp
    Filesize

    44KB

  • memory/1948-58-0x0000000076031000-0x0000000076033000-memory.dmp
    Filesize

    8KB

  • memory/1948-59-0x00000000720BD000-0x00000000720C8000-memory.dmp
    Filesize

    44KB