Analysis

  • max time kernel
    97s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 18:49

General

  • Target

    Statement Account - MAY 2020-pdf.exe

  • Size

    731KB

  • MD5

    14e646718d29dde7c8643ff5d07f9311

  • SHA1

    511ee82c3f4535389d5f62f89d2e1419709f27aa

  • SHA256

    33fefd2ae3ff75bcae6718f2abbc99bc7ca047a4543c5420883eb39e1128e9e5

  • SHA512

    65e3dab2b088bd106adda6c1ded885928d8825d00295524329f703c7617e41cedb7926fe355363229c4176d49f35ef473563ddf775aa219fc8f7d7868b1ae9fb

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hitechnocrats.com
  • Port:
    587
  • Username:
    accounts@hitechnocrats.com
  • 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 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 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\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:1880
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      PID:728
    • 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:2700
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:5080

    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/728-130-0x0000000000000000-mapping.dmp
    • memory/1880-133-0x0000000000400000-0x00000000004BD000-memory.dmp
      Filesize

      756KB

    • memory/2700-131-0x0000000000000000-mapping.dmp
    • memory/2700-132-0x00000000009F0000-0x0000000000A42000-memory.dmp
      Filesize

      328KB

    • memory/2700-134-0x00000000009F0000-0x0000000000A42000-memory.dmp
      Filesize

      328KB

    • memory/2700-135-0x0000000074EB0000-0x0000000075461000-memory.dmp
      Filesize

      5.7MB

    • memory/5080-136-0x0000000000000000-mapping.dmp