Analysis

  • max time kernel
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/11/2023, 03:20

General

  • Target
    SecuriteInfo.com.FileRepMalware.12125.24414.exe
  • Size 534KB
  • Sample231102-dvrlvahe23
  • SHA256 2f86e9bd313089380e4c5937f99fc422eebd1a9e564d97d1edf3003c60bac1e1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.12125.24414.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.12125.24414.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.12125.24414.exe
      C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.12125.24414.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4872

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        SecuriteInfo.com.FileRepMalware.12125.24414.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SecuriteInfo.com.FileRepMalware.12125.24414.exe.log
        • Size 927B
        • SHA256 264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
        • MD5 SHA1 SHA512

        memory/2172-4-0x0000000005930000-0x0000000005974000-memory.dmp

        memory/2172-2-0x0000000005890000-0x00000000058E4000-memory.dmp

        memory/2172-3-0x0000000005920000-0x0000000005930000-memory.dmp

        memory/2172-0-0x0000000000ED0000-0x0000000000F5A000-memory.dmp

        memory/2172-5-0x0000000005970000-0x00000000059BC000-memory.dmp

        memory/2172-6-0x0000000005FC0000-0x0000000006564000-memory.dmp

        memory/2172-11-0x0000000074FA0000-0x0000000075750000-memory.dmp

        memory/2172-1-0x0000000074FA0000-0x0000000075750000-memory.dmp

        memory/4872-12-0x0000000074FA0000-0x0000000075750000-memory.dmp

        memory/4872-13-0x00000000011A0000-0x00000000011B0000-memory.dmp

        memory/4872-8-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/4872-14-0x0000000005190000-0x00000000051F6000-memory.dmp

        memory/4872-15-0x0000000006800000-0x0000000006850000-memory.dmp

        memory/4872-16-0x00000000068F0000-0x0000000006982000-memory.dmp

        memory/4872-17-0x0000000006890000-0x000000000689A000-memory.dmp

        memory/4872-18-0x0000000074FA0000-0x0000000075750000-memory.dmp

        memory/4872-19-0x00000000011A0000-0x00000000011B0000-memory.dmp