Analysis

  • max time kernel
    148s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13-01-2022 02:37

General

  • Target

    SecuriteInfo.com.Trojan.Skarlet.3.Gen.29101.7523.xlsm

  • Size

    83KB

  • MD5

    044c399cb95459d89ce15247a7f4fb0b

  • SHA1

    0621fb8e28e870a5b13229a2a18758ce306c9896

  • SHA256

    60610dee4927e907b5a6a4ac49f8c921fa8af7005b2e8deb2b26ffcc1cac6322

  • SHA512

    9362ecf9910eceb607f82d3af4e176b4dc51c9164904456ca4083a8a7140ac3c585bc021938bc12bfbce8d648992e3c0693d53a09bdda9d37536c65b4ec34233

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://yuanbinglun.com/www.yuanbinglun.com/7kKwqmxRWQK0OLi/

xlm40.dropper

http://laserjetprintersreview.xyz/wp-includes/BJ6yUJ/

xlm40.dropper

http://2021.posadamision.com/wp-admin/IoqaL08/

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • 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 14 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\SecuriteInfo.com.Trojan.Skarlet.3.Gen.29101.7523.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:1540
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\dwa.ocx,D"&"l"&"lR"&"egister"&"Server
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\dwa.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        PID:276

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\dwa.ocx
    MD5

    b382aed028501715fcbb990ce05447fa

    SHA1

    dd0a4e428cc7ad05df52c99b61dd36674f8e2ace

    SHA256

    6e5cdf12d97aa6f56a60dd821f7cf0a6c7ccdda781e33dfc609504e252c296fa

    SHA512

    e94bb16691459be336f8c1e5f6fd5d8c0b4c4c5d541f8be3fd27fccf685ecb6f6506e9c251f6eecd46c3eaf34f5d1a39a73cf412c1e89ce22e3ee3be401b24f4

  • \Users\Admin\dwa.ocx
    MD5

    b382aed028501715fcbb990ce05447fa

    SHA1

    dd0a4e428cc7ad05df52c99b61dd36674f8e2ace

    SHA256

    6e5cdf12d97aa6f56a60dd821f7cf0a6c7ccdda781e33dfc609504e252c296fa

    SHA512

    e94bb16691459be336f8c1e5f6fd5d8c0b4c4c5d541f8be3fd27fccf685ecb6f6506e9c251f6eecd46c3eaf34f5d1a39a73cf412c1e89ce22e3ee3be401b24f4

  • \Users\Admin\dwa.ocx
    MD5

    b382aed028501715fcbb990ce05447fa

    SHA1

    dd0a4e428cc7ad05df52c99b61dd36674f8e2ace

    SHA256

    6e5cdf12d97aa6f56a60dd821f7cf0a6c7ccdda781e33dfc609504e252c296fa

    SHA512

    e94bb16691459be336f8c1e5f6fd5d8c0b4c4c5d541f8be3fd27fccf685ecb6f6506e9c251f6eecd46c3eaf34f5d1a39a73cf412c1e89ce22e3ee3be401b24f4

  • memory/276-61-0x0000000000000000-mapping.dmp
  • memory/1540-54-0x000000002F281000-0x000000002F284000-memory.dmp
    Filesize

    12KB

  • memory/1540-55-0x0000000071681000-0x0000000071683000-memory.dmp
    Filesize

    8KB

  • memory/1540-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2016-57-0x0000000000000000-mapping.dmp
  • memory/2016-58-0x0000000075891000-0x0000000075893000-memory.dmp
    Filesize

    8KB

  • memory/2016-64-0x0000000000180000-0x00000000001A9000-memory.dmp
    Filesize

    164KB