Analysis

  • max time kernel
    137s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:23

General

  • Target

    Bank Document_pdf.exe

  • Size

    513KB

  • MD5

    186a0313d134f01988ea623a10298146

  • SHA1

    efbdcfc82e3f54b542e9b837d9f2a107bf585965

  • SHA256

    9d604c08ee1d3c2f747a0813ba0b38fb34477eca74a73176939f5a37a1ba5bc5

  • SHA512

    b49f90b0e5012da795834b23936693841c4418d842b0287bade25ef5a643dafc9796e548bd89660584c55d6265b2fe47f704e80d7f8f1eb073ef2fb045a484f0

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    bh-58.webhostbox.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    7213575aceACE@#$

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bank Document_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Bank Document_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Users\Admin\AppData\Local\Temp\Bank Document_pdf.exe
      "{path}"
      2⤵
        PID:912
      • C:\Users\Admin\AppData\Local\Temp\Bank Document_pdf.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:1996

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/960-54-0x0000000074DC1000-0x0000000074DC3000-memory.dmp

      Filesize

      8KB

    • memory/960-55-0x0000000074500000-0x0000000074AAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1996-56-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1996-57-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1996-59-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1996-60-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1996-61-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1996-62-0x000000000044702E-mapping.dmp

    • memory/1996-64-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1996-66-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1996-68-0x0000000074500000-0x0000000074AAB000-memory.dmp

      Filesize

      5.7MB