Analysis

  • max time kernel
    111s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:52

General

  • Target

    Statement Account - MAY 2020-pdf.exe

  • Size

    755KB

  • MD5

    fbb290fd8d65ca723cf81a9f9ed20c02

  • SHA1

    b73f0725cb29eb6f1abcc3ea86f792f8d3c2d8b0

  • SHA256

    d146eb20c0c3745f4e74267f468a4fc870c1639b48bdd634d10f82856e7b59e9

  • SHA512

    ccfaee8f96a8b6753a965e0eda2c49a81d4d7c5ec1c901bab38d7db2ebb446acca62600c8e4ceeb3ba8b87bb293c8dfc7e872ab38c96e9b6363eac07d2d06c7b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hitechnocrats.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    tnbJ_YL&GmP}

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 2 IoCs
  • Drops startup file 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • 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
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Statement Account - MAY 2020-pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Statement Account - MAY 2020-pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1396
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      PID:956
    • C:\Users\Admin\AppData\Local\Temp\Statement Account - MAY 2020-pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Statement Account - MAY 2020-pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1404
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:820

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/820-63-0x0000000000000000-mapping.dmp

    • memory/956-55-0x0000000000000000-mapping.dmp

    • memory/1396-54-0x0000000075D21000-0x0000000075D23000-memory.dmp

      Filesize

      8KB

    • memory/1396-59-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

    • memory/1404-57-0x00000000004AE080-mapping.dmp

    • memory/1404-58-0x0000000001D20000-0x0000000001D72000-memory.dmp

      Filesize

      328KB

    • memory/1404-60-0x0000000001D20000-0x0000000001D72000-memory.dmp

      Filesize

      328KB

    • memory/1404-62-0x0000000073FD0000-0x000000007457B000-memory.dmp

      Filesize

      5.7MB