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Analysis

  • max time kernel
    131s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/09/2024, 06:22

General

  • Target

    purchase-Order20200910_pdf.exe

  • Size

    1.3MB

  • MD5

    32489a1c52e2d01f126f44a5f0f3c059

  • SHA1

    7d94c5f3c20ab2c315c2a62b38de61ded4cece5d

  • SHA256

    aa7bb4cef770d1c8fe06f5e4d7a0bff3c2947df233dd5c78f731a154c07f5013

  • SHA512

    ee70bc23e8d0eae9507b95a01628977f09eed6c1689fa9e627b7d5eed6b15b71418fd7ac474b77474e678c12e2cc078bcd9f1fa287c0898adb5ec9ddabd6d318

  • SSDEEP

    24576:cQtI9fqDlRzkeqByXghDBH+fWGfFXg0wkHHS41WLQe:VvRjqVhliWSXggnS41WL

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    lilkooll1234

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    lilkooll1234

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\purchase-Order20200910_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\purchase-Order20200910_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Users\Admin\AppData\Local\Temp\purchase-Order20200910_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\purchase-Order20200910_pdf.exe"
      2⤵
        PID:1600
      • C:\Users\Admin\AppData\Local\Temp\purchase-Order20200910_pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\purchase-Order20200910_pdf.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4840
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4216,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=4076 /prefetch:8
      1⤵
        PID:1840

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\purchase-Order20200910_pdf.exe.log

        Filesize

        712B

        MD5

        d79b2b8e16e03377f4bfb1257f728f37

        SHA1

        6c02783969ed970baccedfd2ca65b3acf4639fcc

        SHA256

        9f9056477252a1535ed5a67763e5e0412f2da3df887a5daaa2e315e7bfee0ac1

        SHA512

        482349681f51666e7d331ac1ad8ef974edd3630dff475c7f188ed3b0bf27f6725c904fa7f5e1a3bc76889c6280505cd6b3d9c484d6172170a6672138d9a580f5

      • memory/1664-3-0x00000000746A2000-0x00000000746A3000-memory.dmp

        Filesize

        4KB

      • memory/1664-2-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB

      • memory/1664-0-0x00000000746A2000-0x00000000746A3000-memory.dmp

        Filesize

        4KB

      • memory/1664-4-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB

      • memory/1664-1-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB

      • memory/1664-9-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB

      • memory/4840-5-0x0000000000400000-0x0000000000466000-memory.dmp

        Filesize

        408KB

      • memory/4840-8-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB

      • memory/4840-10-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB

      • memory/4840-11-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB

      • memory/4840-12-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB

      • memory/4840-13-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB

      • memory/4840-14-0x00000000746A0000-0x0000000074C51000-memory.dmp

        Filesize

        5.7MB