Analysis

  • max time kernel
    141s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 15:36

General

  • Target

    df82d99dd3f8c4601a3d4bdf7c3b62b6.exe

  • Size

    675KB

  • MD5

    df82d99dd3f8c4601a3d4bdf7c3b62b6

  • SHA1

    51f2f44d23f70b45592a627ea5ad95cd781287c0

  • SHA256

    bbca8dbd55f6feaca533c226f8c0e2af7efed8ed37772bdb8a0ff4eb5008a0fb

  • SHA512

    f943a8208348caae30dfc2200927661c0f742126f3cb6615b5cf4523cabc412088d5fe2e853d6879f9048765dd4d84ece0eeabd2dc6452981cc9f20f4a4d0111

  • SSDEEP

    6144:8hDANind1enPfMdAbOo37OPpAbC4d2wxPsn0JWJXDxqxaIXk3z647dFB9ri1lei2:EG2PpAC4fqxxq8wy64Tv+1leiyOnQ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.servconsa.pe
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    electricidad

Signatures

  • AgentTesla

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

  • AgentTesla payload 5 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df82d99dd3f8c4601a3d4bdf7c3b62b6.exe
    "C:\Users\Admin\AppData\Local\Temp\df82d99dd3f8c4601a3d4bdf7c3b62b6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Users\Admin\AppData\Local\Temp\df82d99dd3f8c4601a3d4bdf7c3b62b6.exe
      "{path}"
      2⤵
        PID:2512
      • C:\Users\Admin\AppData\Local\Temp\df82d99dd3f8c4601a3d4bdf7c3b62b6.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2672

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2256-0-0x0000000001200000-0x00000000012B0000-memory.dmp
      Filesize

      704KB

    • memory/2256-1-0x00000000743F0000-0x0000000074ADE000-memory.dmp
      Filesize

      6.9MB

    • memory/2256-2-0x0000000000690000-0x00000000006D0000-memory.dmp
      Filesize

      256KB

    • memory/2256-3-0x00000000003B0000-0x00000000003B8000-memory.dmp
      Filesize

      32KB

    • memory/2256-4-0x00000000743F0000-0x0000000074ADE000-memory.dmp
      Filesize

      6.9MB

    • memory/2256-5-0x0000000000690000-0x00000000006D0000-memory.dmp
      Filesize

      256KB

    • memory/2256-6-0x0000000005A00000-0x0000000005A8A000-memory.dmp
      Filesize

      552KB

    • memory/2256-7-0x0000000004D60000-0x0000000004DA6000-memory.dmp
      Filesize

      280KB

    • memory/2256-20-0x00000000743F0000-0x0000000074ADE000-memory.dmp
      Filesize

      6.9MB

    • memory/2672-11-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2672-8-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2672-10-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2672-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2672-15-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2672-19-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2672-17-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2672-12-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2672-21-0x00000000743F0000-0x0000000074ADE000-memory.dmp
      Filesize

      6.9MB

    • memory/2672-22-0x0000000000CC0000-0x0000000000D00000-memory.dmp
      Filesize

      256KB

    • memory/2672-24-0x00000000743F0000-0x0000000074ADE000-memory.dmp
      Filesize

      6.9MB

    • memory/2672-25-0x0000000000CC0000-0x0000000000D00000-memory.dmp
      Filesize

      256KB

    • memory/2672-26-0x0000000000CC0000-0x0000000000D00000-memory.dmp
      Filesize

      256KB

    • memory/2672-27-0x0000000000CC0000-0x0000000000D00000-memory.dmp
      Filesize

      256KB