Analysis

  • max time kernel
    89s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:07

General

  • Target

    Halkbank_Ekstre_20191415_081738_949589.pdf.exe

  • Size

    1.4MB

  • MD5

    a398ef5ea99ae41cd4fa4532afb9cf44

  • SHA1

    062aa42cc391ce1874e7975d928c97ac3364648b

  • SHA256

    3ea259504667c2d255d44b50a4fe2d7906b819ee0d4ddf77b954ffbb57ec4277

  • SHA512

    42b33d2dd93a427fd17517035dc68147ddafa0945a9ff1219a9086810dcc53f59d8cc2d7c4b07fb1f9c937f61520a837993e5b9f1f9a2ff3c78de67f70a90ab5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.coastalinternational.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    r7i7t7h7u

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191415_081738_949589.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191415_081738_949589.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\MSBuild.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:624
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1724

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Collection

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/624-55-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/624-57-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/624-62-0x000000000044CC9E-mapping.dmp
    • memory/624-66-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/624-63-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/1672-54-0x00000000763C1000-0x00000000763C3000-memory.dmp
      Filesize

      8KB

    • memory/1672-64-0x0000000000430000-0x00000000004C8000-memory.dmp
      Filesize

      608KB

    • memory/1672-65-0x0000000002E90000-0x0000000002F28000-memory.dmp
      Filesize

      608KB

    • memory/1724-68-0x0000000000000000-mapping.dmp