Analysis

  • max time kernel
    103s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2024 01:08

General

  • Target

    25bae5e5fd25d3c87bd68725722c483346869211397f22423d2f5443bc134c22.exe

  • Size

    492KB

  • MD5

    7ffe23b44b7c06a3d3247c6f1248be57

  • SHA1

    a6f5f0183bc32dcf32eafab42aaf1da89b6dc780

  • SHA256

    25bae5e5fd25d3c87bd68725722c483346869211397f22423d2f5443bc134c22

  • SHA512

    fae1e57c6adb61007257815575ea7690f3958f7bb653d45475962c7bbafc20f1a6d6ab7d3ff3ac45dd3685d6f55d57248b5c20fb1dbb5f487049e01f49ca9b16

  • SSDEEP

    6144:D1fuZLmuqBikyjSGGusDDfSIicxriwcJXyA+7kVNTo+zBMbvg9+wlvT+XJO1+cEs:DYpcxusPtiYiwoCA+SNrtMbvM3vO

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.concaribe.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    ro}UWgz#!38E

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.concaribe.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    ro}UWgz#!38E

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 3 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
  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\25bae5e5fd25d3c87bd68725722c483346869211397f22423d2f5443bc134c22.exe
    "C:\Users\Admin\AppData\Local\Temp\25bae5e5fd25d3c87bd68725722c483346869211397f22423d2f5443bc134c22.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\25bae5e5fd25d3c87bd68725722c483346869211397f22423d2f5443bc134c22.exe
      "C:\Users\Admin\AppData\Local\Temp\25bae5e5fd25d3c87bd68725722c483346869211397f22423d2f5443bc134c22.exe"
      2⤵
        PID:3272
      • C:\Users\Admin\AppData\Local\Temp\25bae5e5fd25d3c87bd68725722c483346869211397f22423d2f5443bc134c22.exe
        "C:\Users\Admin\AppData\Local\Temp\25bae5e5fd25d3c87bd68725722c483346869211397f22423d2f5443bc134c22.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4040

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/632-0-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

      Filesize

      4KB

    • memory/632-1-0x0000000000680000-0x0000000000702000-memory.dmp

      Filesize

      520KB

    • memory/632-2-0x00000000055A0000-0x0000000005B44000-memory.dmp

      Filesize

      5.6MB

    • memory/632-3-0x00000000050F0000-0x0000000005182000-memory.dmp

      Filesize

      584KB

    • memory/632-4-0x0000000074DB0000-0x0000000075560000-memory.dmp

      Filesize

      7.7MB

    • memory/632-5-0x00000000051B0000-0x00000000051BA000-memory.dmp

      Filesize

      40KB

    • memory/632-6-0x00000000053B0000-0x00000000053F8000-memory.dmp

      Filesize

      288KB

    • memory/632-10-0x0000000074DB0000-0x0000000075560000-memory.dmp

      Filesize

      7.7MB

    • memory/4040-8-0x0000000074DB0000-0x0000000075560000-memory.dmp

      Filesize

      7.7MB

    • memory/4040-7-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4040-11-0x0000000074DB0000-0x0000000075560000-memory.dmp

      Filesize

      7.7MB

    • memory/4040-9-0x0000000005010000-0x0000000005076000-memory.dmp

      Filesize

      408KB

    • memory/4040-12-0x00000000067E0000-0x0000000006830000-memory.dmp

      Filesize

      320KB

    • memory/4040-13-0x00000000068D0000-0x000000000696C000-memory.dmp

      Filesize

      624KB

    • memory/4040-14-0x0000000074DB0000-0x0000000075560000-memory.dmp

      Filesize

      7.7MB

    • memory/4040-15-0x0000000074DB0000-0x0000000075560000-memory.dmp

      Filesize

      7.7MB