Resubmissions

28-02-2021 17:05

210228-pjgnbjwth2 8

27-02-2021 12:13

210227-bpkha5za7s 8

27-02-2021 04:19

210227-7c1xkzg346 10

27-02-2021 03:32

210227-2xwvzgykxs 8

27-02-2021 03:29

210227-qgrlcph782 8

27-02-2021 03:16

210227-k82qfdjlve 8

27-02-2021 02:45

210227-mjxh7bv4wj 8

27-02-2021 02:23

210227-w6qfkjy5ha 8

27-02-2021 02:06

210227-r385kvgs32 8

26-02-2021 23:10

210226-yds8gthfax 8

Analysis

  • max time kernel
    33s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    27-02-2021 02:45

General

  • Target

    Doc_3744.xls

  • Size

    62KB

  • MD5

    47e22049644647ee854cedfe077156e7

  • SHA1

    20ad9f47616a8272dece2ec1039a88c09412c97c

  • SHA256

    5f2adacaf4ecb00ed24dd9dfe355307d0d6e786e40c945ad4c6d1ae3a4835d2a

  • SHA512

    1eeb87173378f4d0e157ee42f5b28e48ff84a35b44d71f004a6180cc2bdbc09e45c071adc7ab0a94c75071fbe3ee13b939ee8cb216b6f2e06c9c24ca34dbbf1b

Score
8/10

Malware Config

Signatures

  • Modifies RDP port number used by Windows 1 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks registry for disk virtualization 3 TTPs 1 IoCs

    Detecting virtualization disks is order done to detect sandboxing environments.

  • Maps connected drives based on registry 3 TTPs 5 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Checks SCSI registry key(s) 3 TTPs 8 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 29 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 64 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 7 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\Doc_3744.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1088
  • C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\system32\reg.exe
      reg export HKLM file.txt
      2⤵
      • Checks BIOS information in registry
      • Checks registry for disk virtualization
      • Maps connected drives based on registry
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Enumerates system info in registry
      PID:1212
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:848 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1052
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
    1⤵
      PID:876
    • C:\Windows\SysWOW64\DllHost.exe
      C:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
      1⤵
        PID:1412

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/776-7-0x000007FEF7900000-0x000007FEF7B7A000-memory.dmp

        Filesize

        2.5MB

      • memory/848-6-0x000007FEFBDA1000-0x000007FEFBDA3000-memory.dmp

        Filesize

        8KB

      • memory/848-9-0x0000000003380000-0x0000000003381000-memory.dmp

        Filesize

        4KB

      • memory/876-11-0x0000000075D61000-0x0000000075D63000-memory.dmp

        Filesize

        8KB

      • memory/1088-2-0x000000002F791000-0x000000002F794000-memory.dmp

        Filesize

        12KB

      • memory/1088-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/1088-3-0x00000000715B1000-0x00000000715B3000-memory.dmp

        Filesize

        8KB