Analysis

  • max time kernel
    108s
  • max time network
    74s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    21-01-2021 18:34

General

  • Target

    liamhugox.exe

  • Size

    23KB

  • MD5

    bf36c3069116a3da50f1064adfdd155a

  • SHA1

    cbb6f81f80e270ca89059eb96aab393f7b513044

  • SHA256

    5d555eddfc23183dd821432fd2a4a04a543c8c1907b636440eb6e7d21829576c

  • SHA512

    8c557a6943de45b1405405dea568a726eaf6f7b4874b0b93efaba467f3454bf68f674bb52d2c5e69fafdf3b530bcdc57cfc53c3443f6f95b8b561508c84a81bc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    frostdell.uk
  • Port:
    587
  • Username:
    userlogs@frostdell.uk
  • Password:
    7213575aceACE@#$

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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 36 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\liamhugox.exe
    "C:\Users\Admin\AppData\Local\Temp\liamhugox.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1856
    • C:\Users\Admin\AppData\Local\Temp\liamhugox.exe
      "C:\Users\Admin\AppData\Local\Temp\liamhugox.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1604
    • C:\Users\Admin\AppData\Local\Temp\liamhugox.exe
      "C:\Users\Admin\AppData\Local\Temp\liamhugox.exe"
      2⤵
        PID:1056
      • C:\Users\Admin\AppData\Local\Temp\liamhugox.exe
        "C:\Users\Admin\AppData\Local\Temp\liamhugox.exe"
        2⤵
          PID:572
        • C:\Users\Admin\AppData\Local\Temp\liamhugox.exe
          "C:\Users\Admin\AppData\Local\Temp\liamhugox.exe"
          2⤵
            PID:292
          • C:\Users\Admin\AppData\Local\Temp\liamhugox.exe
            "C:\Users\Admin\AppData\Local\Temp\liamhugox.exe"
            2⤵
              PID:1544
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 1100
              2⤵
              • Program crash
              PID:552

          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/292-22-0x000000000043764E-mapping.dmp
          • memory/572-32-0x0000000000490000-0x0000000000491000-memory.dmp
            Filesize

            4KB

          • memory/572-16-0x0000000074590000-0x0000000074C7E000-memory.dmp
            Filesize

            6.9MB

          • memory/572-15-0x000000000043764E-mapping.dmp
          • memory/1056-12-0x000000000043764E-mapping.dmp
          • memory/1056-30-0x0000000004B40000-0x0000000004B41000-memory.dmp
            Filesize

            4KB

          • memory/1056-14-0x0000000074590000-0x0000000074C7E000-memory.dmp
            Filesize

            6.9MB

          • memory/1056-17-0x0000000000400000-0x000000000043C000-memory.dmp
            Filesize

            240KB

          • memory/1544-27-0x0000000074590000-0x0000000074C7E000-memory.dmp
            Filesize

            6.9MB

          • memory/1544-26-0x000000000043764E-mapping.dmp
          • memory/1544-33-0x0000000004B50000-0x0000000004B51000-memory.dmp
            Filesize

            4KB

          • memory/1604-11-0x0000000074590000-0x0000000074C7E000-memory.dmp
            Filesize

            6.9MB

          • memory/1604-8-0x000000000043764E-mapping.dmp
          • memory/1604-7-0x0000000000400000-0x000000000043C000-memory.dmp
            Filesize

            240KB

          • memory/1604-31-0x0000000004A80000-0x0000000004A81000-memory.dmp
            Filesize

            4KB

          • memory/1604-34-0x0000000004A81000-0x0000000004A82000-memory.dmp
            Filesize

            4KB

          • memory/1856-9-0x00000000004B0000-0x00000000004B1000-memory.dmp
            Filesize

            4KB

          • memory/1856-6-0x0000000000440000-0x000000000049B000-memory.dmp
            Filesize

            364KB

          • memory/1856-2-0x0000000074590000-0x0000000074C7E000-memory.dmp
            Filesize

            6.9MB

          • memory/1856-5-0x0000000004B50000-0x0000000004B51000-memory.dmp
            Filesize

            4KB

          • memory/1856-3-0x0000000000C50000-0x0000000000C51000-memory.dmp
            Filesize

            4KB