Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:41

General

  • Target

    6月份副料請款明細 高士丰 - TAIEASY.exe

  • Size

    487KB

  • MD5

    81a9fd9492afb0f0d7bea535b1ef201a

  • SHA1

    daae7e3c956973ef70278f3bec0f962df847e853

  • SHA256

    4e9e93f2212fe68f3a0ffe0a1eb732413efd85cc3e94d6d62ebc9558dd8b957c

  • SHA512

    c1095cb393d4b877629029676839c47dffc64aece9b9c09cea5228a9f2e2b19337008b3b0045eb7102def563c71b7681c3420d73e4ae62666f7d2f41d0dbf2fa

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.moorefundz.com
  • Port:
    587
  • Username:
    evra@moorefundz.com
  • Password:
    g7g2Ig?Aeh_+

Signatures

  • AgentTesla

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

  • AgentTesla Payload 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6月份副料請款明細 高士丰 - TAIEASY.exe
    "C:\Users\Admin\AppData\Local\Temp\6月份副料請款明細 高士丰 - TAIEASY.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4692
    • C:\Users\Admin\AppData\Local\Temp\6月份副料請款明細 高士丰 - TAIEASY.exe
      "{path}"
      2⤵
        PID:1296
      • C:\Users\Admin\AppData\Local\Temp\6月份副料請款明細 高士丰 - TAIEASY.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:3744

    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

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\6月份副料請款明細 高士丰 - TAIEASY.exe.log
      Filesize

      408B

      MD5

      04ad5d645afd4aad8257d37d2b197bd9

      SHA1

      f27458933c22a18ed06c3ef023d9356bae6f5e89

      SHA256

      519a7b0a515b09c8d149c48a26e782e13decd80c2a2957a751f58801bed026d0

      SHA512

      34097f7ec87c917ebb2f38a156a33ff1b5f8570141acd666a1fce2cd5d40e464762a3a596a44f078318f92823a7d7b961751c4399040a09e5eddb941f22c4754

    • memory/1296-131-0x0000000000000000-mapping.dmp
    • memory/3744-132-0x0000000000000000-mapping.dmp
    • memory/3744-133-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

    • memory/3744-135-0x0000000074B10000-0x00000000750C1000-memory.dmp
      Filesize

      5.7MB

    • memory/4692-130-0x0000000074B10000-0x00000000750C1000-memory.dmp
      Filesize

      5.7MB