Analysis

  • max time kernel
    111s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    22-01-2021 10:13

General

  • Target

    SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe

  • Size

    25KB

  • MD5

    8f067e5d8c2bfb6d64f3b747566e5790

  • SHA1

    967ac2725a7be422b5b1349c971dd792c877ff47

  • SHA256

    7d7924e92e2e23345b47169e428d4bc85cd5140e733e90512d28cef9e7d0c38a

  • SHA512

    480cef0f3e98f8d93df1cb4cc8c1f10d9d35c6591012a1286c5fc9a244f7f7cd99bdab6f328bd33d02640480d8f769a27657b37039b4df62d82064ddad195785

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sardaplywood.com
  • Port:
    587
  • Username:
    superstars@sardaplywood.com
  • Password:
    sup123st45

Signatures

  • AgentTesla

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

  • AgentTesla Payload 7 IoCs
  • 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 NtSetInformationThreadHideFromDebugger 35 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe"
      2⤵
        PID:1320
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe"
        2⤵
          PID:1292
        • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe
          "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1732
        • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe
          "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe"
          2⤵
            PID:1740
          • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe
            "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.mh.5906.exe"
            2⤵
              PID:1264
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 1100
              2⤵
              • Program crash
              PID:800

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Credential Access

          Credentials in Files

          3
          T1081

          Collection

          Data from Local System

          3
          T1005

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1264-26-0x000000000043768E-mapping.dmp
          • memory/1264-32-0x0000000004B30000-0x0000000004B31000-memory.dmp
            Filesize

            4KB

          • memory/1264-27-0x00000000741E0000-0x00000000748CE000-memory.dmp
            Filesize

            6.9MB

          • memory/1292-16-0x0000000000400000-0x000000000043C000-memory.dmp
            Filesize

            240KB

          • memory/1292-11-0x000000000043768E-mapping.dmp
          • memory/1292-13-0x00000000741E0000-0x00000000748CE000-memory.dmp
            Filesize

            6.9MB

          • memory/1292-33-0x0000000000610000-0x0000000000611000-memory.dmp
            Filesize

            4KB

          • memory/1320-31-0x0000000004D00000-0x0000000004D01000-memory.dmp
            Filesize

            4KB

          • memory/1320-8-0x000000000043768E-mapping.dmp
          • memory/1320-10-0x00000000741E0000-0x00000000748CE000-memory.dmp
            Filesize

            6.9MB

          • memory/1320-7-0x0000000000400000-0x000000000043C000-memory.dmp
            Filesize

            240KB

          • memory/1732-15-0x00000000741E0000-0x00000000748CE000-memory.dmp
            Filesize

            6.9MB

          • memory/1732-14-0x000000000043768E-mapping.dmp
          • memory/1732-34-0x0000000004CB1000-0x0000000004CB2000-memory.dmp
            Filesize

            4KB

          • memory/1732-30-0x0000000004CB0000-0x0000000004CB1000-memory.dmp
            Filesize

            4KB

          • memory/1740-22-0x000000000043768E-mapping.dmp
          • memory/1752-18-0x00000000004A0000-0x00000000004A1000-memory.dmp
            Filesize

            4KB

          • memory/1752-3-0x0000000000B10000-0x0000000000B11000-memory.dmp
            Filesize

            4KB

          • memory/1752-5-0x0000000004880000-0x0000000004881000-memory.dmp
            Filesize

            4KB

          • memory/1752-6-0x00000000051B0000-0x000000000520C000-memory.dmp
            Filesize

            368KB

          • memory/1752-2-0x00000000741E0000-0x00000000748CE000-memory.dmp
            Filesize

            6.9MB