Resubmissions

29-11-2022 16:30

221129-tz6vbshg41 10

02-11-2022 08:18

221102-j7caksbbek 10

Analysis

  • max time kernel
    308s
  • max time network
    332s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 16:30

General

  • Target

    ef2ce641a4e9f270eea626e8e4800b0b97b4a436c40e7af30aeb6f02566b809c.xls

  • Size

    216KB

  • MD5

    2486374800299563ab8934122234242a

  • SHA1

    47bfe94aa96ef43231890f04ccd286b0888e10c8

  • SHA256

    ef2ce641a4e9f270eea626e8e4800b0b97b4a436c40e7af30aeb6f02566b809c

  • SHA512

    74e52e1e1317908447340cbba32949321ed435f17a524224af80236ecdf67187c83908cca514e82a49b9abe9495125ba741e01ed8f30663124c13fce339c63e5

  • SSDEEP

    6144:bKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgAyY+TAQXTHGUMEyP5p6f5jQmK:GbGUMVWlbK

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://audioselec.com/about/dDw5ggtyMojggTqhc/

xlm40.dropper

https://geringer-muehle.de/wp-admin/G/

xlm40.dropper

http://intolove.co.uk/wp-admin/FbGhiWtrEzrQ/

xlm40.dropper

http://isc.net.ua/themes/3rU/

Signatures

  • Process spawned unexpected child process 4 IoCs

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

  • Drops file in Program Files directory 1 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 10 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\ef2ce641a4e9f270eea626e8e4800b0b97b4a436c40e7af30aeb6f02566b809c.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1184
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:852
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      1⤵
        PID:1384
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        1⤵
          PID:1588
        • C:\Windows\system32\AUDIODG.EXE
          C:\Windows\system32\AUDIODG.EXE 0xc4
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1612
        • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
          "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde
          1⤵
          • Drops file in Program Files directory
          • Enumerates system info in registry
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1232
          • C:\Windows\SysWOW64\regsvr32.exe
            C:\Windows\System32\regsvr32.exe ..\oxnv1.ooccxx
            2⤵
            • Process spawned unexpected child process
            PID:1344
          • C:\Windows\SysWOW64\regsvr32.exe
            C:\Windows\System32\regsvr32.exe ..\oxnv2.ooccxx
            2⤵
            • Process spawned unexpected child process
            PID:428
          • C:\Windows\SysWOW64\regsvr32.exe
            C:\Windows\System32\regsvr32.exe ..\oxnv3.ooccxx
            2⤵
            • Process spawned unexpected child process
            PID:1056
          • C:\Windows\SysWOW64\regsvr32.exe
            C:\Windows\System32\regsvr32.exe ..\oxnv4.ooccxx
            2⤵
            • Process spawned unexpected child process
            PID:2016

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/428-73-0x0000000000000000-mapping.dmp

        • memory/852-59-0x000007FEFB7C1000-0x000007FEFB7C3000-memory.dmp

          Filesize

          8KB

        • memory/1056-75-0x0000000000000000-mapping.dmp

        • memory/1184-64-0x0000000071F9D000-0x0000000071FA8000-memory.dmp

          Filesize

          44KB

        • memory/1184-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1184-57-0x0000000071F9D000-0x0000000071FA8000-memory.dmp

          Filesize

          44KB

        • memory/1184-61-0x0000000075991000-0x0000000075993000-memory.dmp

          Filesize

          8KB

        • memory/1184-63-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1184-54-0x000000002F481000-0x000000002F484000-memory.dmp

          Filesize

          12KB

        • memory/1184-55-0x0000000070FB1000-0x0000000070FB3000-memory.dmp

          Filesize

          8KB

        • memory/1184-58-0x0000000071F9D000-0x0000000071FA8000-memory.dmp

          Filesize

          44KB

        • memory/1232-66-0x0000000072351000-0x0000000072353000-memory.dmp

          Filesize

          8KB

        • memory/1232-69-0x000000007333D000-0x0000000073348000-memory.dmp

          Filesize

          44KB

        • memory/1232-70-0x000000007333D000-0x0000000073348000-memory.dmp

          Filesize

          44KB

        • memory/1232-67-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1232-65-0x000000002F0D1000-0x000000002F0D4000-memory.dmp

          Filesize

          12KB

        • memory/1344-71-0x0000000000000000-mapping.dmp

        • memory/2016-77-0x0000000000000000-mapping.dmp