Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:36

General

  • Target

    PURCHASE ORDER 08312020.exe

  • Size

    524KB

  • MD5

    9a82d13952cedfd54981e27b52ec5e46

  • SHA1

    59cf1da6becb58c4717c8d5ed9f3bd808ba00ad3

  • SHA256

    0155cf3feaf162d21ca9611219242fbe79ce0100930cdec25291810f86eeeb91

  • SHA512

    76910e81be9984346f9a2bff199aa59722743b6729dc9855caf63f89dd4169af65a04a6389bf71aa8d663cd48fbd811ef60cd951058bf2dcb75c758c27652ddb

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kbasaxxuxlnlqqlt

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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 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\PURCHASE ORDER 08312020.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 08312020.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 08312020.exe
      "{path}"
      2⤵
        PID:1360
      • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 08312020.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:1112

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1112-64-0x000000000044A6FE-mapping.dmp

    • memory/1112-58-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1112-59-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1112-61-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1112-62-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1112-63-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1112-66-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1112-68-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1112-69-0x0000000076011000-0x0000000076013000-memory.dmp

      Filesize

      8KB

    • memory/1928-55-0x0000000000230000-0x000000000023A000-memory.dmp

      Filesize

      40KB

    • memory/1928-56-0x0000000002350000-0x00000000023C6000-memory.dmp

      Filesize

      472KB

    • memory/1928-57-0x0000000004830000-0x000000000489E000-memory.dmp

      Filesize

      440KB

    • memory/1928-54-0x0000000000D70000-0x0000000000DFA000-memory.dmp

      Filesize

      552KB