Analysis

  • max time kernel
    139s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    21-10-2021 14:21

General

  • Target

    Payment Advice.exe

  • Size

    597KB

  • MD5

    91abc47e7bb4110eea539082f7cc5559

  • SHA1

    034b17319ec75aed6e6becad1a7efa8f9374228f

  • SHA256

    b5424ff763ec9e9cb9389c81087597201a36c999f7c2dc80be51b92ce17add06

  • SHA512

    7ca52acf1228c91205ade4a8efe24e1c04d11e53bb460334b1e8dbcbfda3c10f7bf594d6ce8a423c1d47d6eaca3bc0f621d386e19cbdc0c84f66f24bdc59ad96

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    sales@tanimas-id.com
  • Password:
    !xgapua3

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
      2⤵
        PID:992
      • C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
        "C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:816

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/816-65-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/816-63-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/816-70-0x00000000003B1000-0x00000000003B2000-memory.dmp
      Filesize

      4KB

    • memory/816-69-0x00000000003B0000-0x00000000003B1000-memory.dmp
      Filesize

      4KB

    • memory/816-67-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/816-61-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/816-64-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/816-62-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/816-66-0x00000000004375EE-mapping.dmp
    • memory/2008-55-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2008-57-0x0000000075191000-0x0000000075193000-memory.dmp
      Filesize

      8KB

    • memory/2008-60-0x0000000004420000-0x0000000004478000-memory.dmp
      Filesize

      352KB

    • memory/2008-59-0x0000000004DD0000-0x0000000004DD1000-memory.dmp
      Filesize

      4KB

    • memory/2008-58-0x0000000000560000-0x0000000000567000-memory.dmp
      Filesize

      28KB