Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 02:04

General

  • Target

    d7531e4728438f15714cd44a6ed353d5117b4a3b6db1ece8b945ca8eb0b1408d.exe

  • Size

    356KB

  • MD5

    be60ea5cc4efb226b78a6a257ff112fd

  • SHA1

    1bc68e94bf651242cd3ca51c34f9113992d4f9a7

  • SHA256

    d7531e4728438f15714cd44a6ed353d5117b4a3b6db1ece8b945ca8eb0b1408d

  • SHA512

    dcb28bde9d6d4726d59c3b62915992c26bbb1cd2f85a89895f8a2ada3ba11c79d0e4dcda4ebac14c257db09ccd0db05959af2db2e2032f622ed6cac8d724400f

  • SSDEEP

    6144:CI8dwrN+sNKki7FYkxcpVotE2586h8YQbWTODuQckHooppgNoo9ELQbkm8UbL0:GUFtOq3Ct186eKwrc+np+Nos9km8U

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 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.

  • 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 2 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d7531e4728438f15714cd44a6ed353d5117b4a3b6db1ece8b945ca8eb0b1408d.exe
    "C:\Users\Admin\AppData\Local\Temp\d7531e4728438f15714cd44a6ed353d5117b4a3b6db1ece8b945ca8eb0b1408d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4640
    • C:\Users\Admin\AppData\Local\Temp\d7531e4728438f15714cd44a6ed353d5117b4a3b6db1ece8b945ca8eb0b1408d.exe
      "C:\Users\Admin\AppData\Local\Temp\d7531e4728438f15714cd44a6ed353d5117b4a3b6db1ece8b945ca8eb0b1408d.exe"
      2⤵
        PID:2068
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 80
          3⤵
          • Program crash
          PID:3776
      • C:\Users\Admin\AppData\Local\Temp\d7531e4728438f15714cd44a6ed353d5117b4a3b6db1ece8b945ca8eb0b1408d.exe
        "C:\Users\Admin\AppData\Local\Temp\d7531e4728438f15714cd44a6ed353d5117b4a3b6db1ece8b945ca8eb0b1408d.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1576
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2068 -ip 2068
      1⤵
        PID:3168

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1576-9-0x0000000005750000-0x00000000057B6000-memory.dmp
        Filesize

        408KB

      • memory/1576-11-0x0000000006CA0000-0x0000000006CF0000-memory.dmp
        Filesize

        320KB

      • memory/1576-16-0x0000000006E40000-0x0000000006E4A000-memory.dmp
        Filesize

        40KB

      • memory/1576-15-0x0000000006ED0000-0x0000000006F62000-memory.dmp
        Filesize

        584KB

      • memory/1576-14-0x0000000005640000-0x0000000005650000-memory.dmp
        Filesize

        64KB

      • memory/1576-6-0x0000000074910000-0x00000000750C0000-memory.dmp
        Filesize

        7.7MB

      • memory/1576-13-0x0000000074910000-0x00000000750C0000-memory.dmp
        Filesize

        7.7MB

      • memory/1576-7-0x0000000005C00000-0x00000000061A4000-memory.dmp
        Filesize

        5.6MB

      • memory/1576-5-0x0000000000400000-0x0000000000440000-memory.dmp
        Filesize

        256KB

      • memory/1576-12-0x0000000006D90000-0x0000000006E2C000-memory.dmp
        Filesize

        624KB

      • memory/1576-8-0x0000000005640000-0x0000000005650000-memory.dmp
        Filesize

        64KB

      • memory/4640-10-0x0000000074910000-0x00000000750C0000-memory.dmp
        Filesize

        7.7MB

      • memory/4640-1-0x0000000074910000-0x00000000750C0000-memory.dmp
        Filesize

        7.7MB

      • memory/4640-0-0x00000000004D0000-0x0000000000530000-memory.dmp
        Filesize

        384KB

      • memory/4640-4-0x0000000004E80000-0x0000000004E81000-memory.dmp
        Filesize

        4KB

      • memory/4640-2-0x0000000004F60000-0x0000000004F70000-memory.dmp
        Filesize

        64KB