Analysis

  • max time kernel
    92s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/09/2024, 14:18

General

  • Target
    163dc1e7f9c325afffea83840e318a51dcfa736fc0e0e63477c7673d2385bdf2.exe
  • Size 737KB
  • Sample240902-rl99gssbqp
  • SHA256 163dc1e7f9c325afffea83840e318a51dcfa736fc0e0e63477c7673d2385bdf2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.grupovamex.com

  • Port

    21

  • Password

    bu%wqhrVi,Qv

Signatures

  • AgentTesla

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

  • 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\163dc1e7f9c325afffea83840e318a51dcfa736fc0e0e63477c7673d2385bdf2.exe
    "C:\Users\Admin\AppData\Local\Temp\163dc1e7f9c325afffea83840e318a51dcfa736fc0e0e63477c7673d2385bdf2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Users\Admin\AppData\Local\Temp\163dc1e7f9c325afffea83840e318a51dcfa736fc0e0e63477c7673d2385bdf2.exe
      "C:\Users\Admin\AppData\Local\Temp\163dc1e7f9c325afffea83840e318a51dcfa736fc0e0e63477c7673d2385bdf2.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4324

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        163dc1e7f9c325afffea83840e318a51dcfa736fc0e0e63477c7673d2385bdf2.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\163dc1e7f9c325afffea83840e318a51dcfa736fc0e0e63477c7673d2385bdf2.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/2368-10-0x0000000006690000-0x000000000669E000-memory.dmp

        memory/2368-2-0x0000000005AC0000-0x0000000006064000-memory.dmp

        memory/2368-3-0x0000000005460000-0x00000000054F2000-memory.dmp

        memory/2368-4-0x00000000746E0000-0x0000000074E90000-memory.dmp

        memory/2368-5-0x0000000005540000-0x000000000554A000-memory.dmp

        memory/2368-6-0x0000000005AA0000-0x0000000005AB2000-memory.dmp

        memory/2368-7-0x00000000746EE000-0x00000000746EF000-memory.dmp

        memory/2368-8-0x00000000746E0000-0x0000000074E90000-memory.dmp

        memory/2368-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

        memory/2368-9-0x0000000006680000-0x0000000006688000-memory.dmp

        memory/2368-19-0x00000000746E0000-0x0000000074E90000-memory.dmp

        memory/2368-12-0x0000000009300000-0x000000000939C000-memory.dmp

        memory/2368-11-0x00000000066F0000-0x0000000006772000-memory.dmp

        memory/2368-1-0x00000000009D0000-0x0000000000A8C000-memory.dmp

        memory/4324-16-0x00000000746E0000-0x0000000074E90000-memory.dmp

        memory/4324-17-0x0000000004FA0000-0x0000000005006000-memory.dmp

        memory/4324-18-0x00000000746E0000-0x0000000074E90000-memory.dmp

        memory/4324-13-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/4324-20-0x0000000005D60000-0x0000000005DB0000-memory.dmp

        memory/4324-21-0x00000000746E0000-0x0000000074E90000-memory.dmp