Analysis

  • max time kernel
    139s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 12:56

General

  • Target

    Curriculum Vitae Catalina Munoz.exe

  • Size

    767KB

  • MD5

    125c45b0537f2cc75190a202f855bfa5

  • SHA1

    ce1780060917a828b273379e97297e69a9c9027a

  • SHA256

    5434f56ea712cdf3befb3d93d70711cda5d7edd1078eafe735f933f12aaca839

  • SHA512

    76046062ed78c8c6010ea213db0c43597d7811511d1b2752975a6934cf02753643de6c444fda3b0bd667e8456e454c1ce7e850391c4ca4ea7006a4028479b3c3

  • SSDEEP

    12288:JXWdrLbDZaNRpc4iuWl9zFlhhU6oK/n5h+BvB2kpU5J01xHNDSxza+3AjFj9PDv/:6LDZMRpkl9/hhGUf+ZtpiJIND4Tu

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.claresbout.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    fahaF^V7

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae Catalina Munoz.exe
    "C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae Catalina Munoz.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3516
    • C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae Catalina Munoz.exe
      "C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae Catalina Munoz.exe"
      2⤵
        PID:3032
      • C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae Catalina Munoz.exe
        "C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae Catalina Munoz.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4448
    • 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 --no-appcompat-clear --field-trial-handle=3980,i,13281073920029625837,8253721632651544158,262144 --variations-seed-version --mojo-platform-channel-handle=4176 /prefetch:8
      1⤵
        PID:2076

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Curriculum Vitae Catalina Munoz.exe.log

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • memory/3516-4-0x0000000002FD0000-0x0000000002FDA000-memory.dmp

        Filesize

        40KB

      • memory/3516-3-0x0000000007BA0000-0x0000000007C32000-memory.dmp

        Filesize

        584KB

      • memory/3516-10-0x0000000008880000-0x0000000008902000-memory.dmp

        Filesize

        520KB

      • memory/3516-9-0x0000000007B80000-0x0000000007B90000-memory.dmp

        Filesize

        64KB

      • memory/3516-5-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/3516-6-0x0000000007DE0000-0x0000000007E7C000-memory.dmp

        Filesize

        624KB

      • memory/3516-7-0x0000000007B50000-0x0000000007B72000-memory.dmp

        Filesize

        136KB

      • memory/3516-8-0x0000000007B70000-0x0000000007B7C000-memory.dmp

        Filesize

        48KB

      • memory/3516-15-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/3516-2-0x00000000080B0000-0x0000000008654000-memory.dmp

        Filesize

        5.6MB

      • memory/3516-0-0x000000007507E000-0x000000007507F000-memory.dmp

        Filesize

        4KB

      • memory/3516-1-0x0000000000BF0000-0x0000000000CB4000-memory.dmp

        Filesize

        784KB

      • memory/4448-14-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/4448-19-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/4448-16-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/4448-17-0x0000000005520000-0x0000000005586000-memory.dmp

        Filesize

        408KB

      • memory/4448-18-0x0000000006B00000-0x0000000006B50000-memory.dmp

        Filesize

        320KB

      • memory/4448-11-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB