Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    29-10-2021 19:12

General

  • Target

    6628819927788177272-DEKONT.exe

  • Size

    561KB

  • MD5

    ffe72c0b077d5f676be820489ecec81a

  • SHA1

    cde15eab3928df21425863da28c42dd34b708f4e

  • SHA256

    675b0dff6f40d1838f3e386abdb322f9491069f7b57a9fc1dd33fde9805d923b

  • SHA512

    c4e475affe7225e77ef7f14acedd4ff14e37cab7efe792c85a8b60d3943e1662daa5a7bd42a2cb42a5dfe6962be6d512821a9126c791b9761bdef0cdf1fba03c

Malware Config

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • suricata: ET MALWARE a310Logger Stealer Exfil (SMTP)

    suricata: ET MALWARE a310Logger Stealer Exfil (SMTP)

  • A310logger Executable 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6628819927788177272-DEKONT.exe
    "C:\Users\Admin\AppData\Local\Temp\6628819927788177272-DEKONT.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2928
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DkmTmLL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B11.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1120
    • C:\Users\Admin\AppData\Local\Temp\6628819927788177272-DEKONT.exe
      "C:\Users\Admin\AppData\Local\Temp\6628819927788177272-DEKONT.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1212
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • outlook_office_path
        • outlook_win_path
        PID:1776
      • C:\Program Files (x86)\Windows Mail\WinMail.exe
        "C:\Program Files (x86)\Windows Mail\WinMail" OCInstallUserConfigOE
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2148
        • C:\Program Files\Windows Mail\WinMail.exe
          "C:\Program Files\Windows Mail\WinMail" OCInstallUserConfigOE
          4⤵
            PID:2264

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1212-128-0x0000000000400000-0x0000000000456000-memory.dmp

      Filesize

      344KB

    • memory/1776-137-0x000000001B1C0000-0x000000001B1C2000-memory.dmp

      Filesize

      8KB

    • memory/1776-135-0x0000000000470000-0x0000000000471000-memory.dmp

      Filesize

      4KB

    • memory/2928-126-0x00000000017D0000-0x0000000001848000-memory.dmp

      Filesize

      480KB

    • memory/2928-122-0x00000000059F0000-0x0000000005EEE000-memory.dmp

      Filesize

      5.0MB

    • memory/2928-121-0x0000000005890000-0x0000000005891000-memory.dmp

      Filesize

      4KB

    • memory/2928-118-0x0000000000E90000-0x0000000000E91000-memory.dmp

      Filesize

      4KB

    • memory/2928-123-0x0000000005980000-0x0000000005981000-memory.dmp

      Filesize

      4KB

    • memory/2928-120-0x0000000005EF0000-0x0000000005EF1000-memory.dmp

      Filesize

      4KB

    • memory/2928-125-0x0000000001730000-0x0000000001731000-memory.dmp

      Filesize

      4KB

    • memory/2928-124-0x0000000008F10000-0x0000000008F16000-memory.dmp

      Filesize

      24KB