Analysis

  • max time kernel
    89s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 02:27

General

  • Target

    Quotation.exe

  • Size

    349KB

  • MD5

    e4c1a88c35f7fd8b5565b3745b831b2a

  • SHA1

    382794bb0b470804f97eb4bb15a89af54dd9b015

  • SHA256

    467d49c33ce4c91f53f7120a44819d51847b9220c62027415936c1fffa631bd2

  • SHA512

    afaa8e21d4268dcb20c72879727714ffb571a31576447c7a946a7d15da48f7a23af25bd4fa4f099f24314837cde3f41fd9e6200df9dc9bdb6c212f78dd22105a

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.adithyaeng.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    thiyagarajan*123

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 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1964
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1684

    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/960-54-0x00000000000D0000-0x000000000012E000-memory.dmp
      Filesize

      376KB

    • memory/960-55-0x0000000000550000-0x00000000005AA000-memory.dmp
      Filesize

      360KB

    • memory/960-56-0x0000000076571000-0x0000000076573000-memory.dmp
      Filesize

      8KB

    • memory/960-58-0x00000000003D0000-0x00000000003D3000-memory.dmp
      Filesize

      12KB

    • memory/1684-61-0x0000000000000000-mapping.dmp
    • memory/1964-57-0x000000000044CD3E-mapping.dmp
    • memory/1964-60-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB