Analysis

  • max time kernel
    88s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    30-06-2020 09:38

General

  • Target

    LC201982732020_pdf.exe

  • Size

    400KB

  • MD5

    09db2d1968f0c9c5705ccec83ab4b077

  • SHA1

    dbeab244ced038ef3ac6a9d7055d3439c62cacd3

  • SHA256

    350a1cceb4f399c5d7515ede00aa6c9dbf6a6d9a4b96ad87f158005d58faf567

  • SHA512

    fee17b4f4bdd074200ed8d3d0d9c7b58ddb820b30b018272bf84c34711da8d98f160f714180295cedeac5293cb62f544a0c2ba89ba77de294be95fc0f530ea3a

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    aqueenu9@yandex.com
  • Password:
    lilkooll1234

Signatures

  • AgentTesla

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

  • Suspicious use of WriteProcessMemory 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\LC201982732020_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\LC201982732020_pdf.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetThreadContext
    PID:2008
    • C:\Users\Admin\AppData\Local\Temp\LC201982732020_pdf.exe
      "{path}"
      2⤵
        PID:3956
      • C:\Users\Admin\AppData\Local\Temp\LC201982732020_pdf.exe
        "{path}"
        2⤵
          PID:3968
        • C:\Users\Admin\AppData\Local\Temp\LC201982732020_pdf.exe
          "{path}"
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious behavior: EnumeratesProcesses
          PID:3916

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Credential Access

      Credentials in Files

      3
      T1081

      Collection

      Data from Local System

      3
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\LC201982732020_pdf.exe.log
      • memory/3916-0-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/3916-1-0x000000000044741E-mapping.dmp