Analysis

  • max time kernel
    78s
  • max time network
    77s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 19:37

General

  • Target

    SOA.exe

  • Size

    524KB

  • MD5

    5c35980b02c0b8d7215bed3cce049a0c

  • SHA1

    91c0cf0dc6099389d3c9994b9090796b6b1837b2

  • SHA256

    e6eb2ae2e4e6d4ee40266c80f99169f284c67a901c7fff826d4156663910180d

  • SHA512

    61d12686a47afbd27754f06b245b091e38ee4cd5fc44f1842ce575268b735e06eccfbc107a956df25219836cd5fdff883fbca82c8ee952abdaacef99574d3154

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.dianaglobalmandiri.com
  • Port:
    587
  • Username:
    info@dianaglobalmandiri.com
  • Password:
    Batam2019

Signatures

  • AgentTesla

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

  • CoreEntity .NET Packer 1 IoCs

    A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

  • AgentTesla Payload 4 IoCs
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SOA.exe
    "C:\Users\Admin\AppData\Local\Temp\SOA.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1852
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:772
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Drops file in Drivers directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:804
        • C:\Windows\SysWOW64\REG.exe
          REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
          3⤵
          • Modifies registry key
          PID:824
        • C:\Windows\SysWOW64\netsh.exe
          "netsh" wlan show profile
          3⤵
            PID:1800

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Defense Evasion

      Modify Registry

      1
      T1112

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/804-6-0x0000000000400000-0x0000000000452000-memory.dmp
        Filesize

        328KB

      • memory/804-7-0x000000000044CDFE-mapping.dmp
      • memory/804-8-0x0000000000400000-0x0000000000452000-memory.dmp
        Filesize

        328KB

      • memory/804-9-0x0000000000400000-0x0000000000452000-memory.dmp
        Filesize

        328KB

      • memory/804-10-0x0000000073A30000-0x000000007411E000-memory.dmp
        Filesize

        6.9MB

      • memory/824-13-0x0000000000000000-mapping.dmp
      • memory/1800-14-0x0000000000000000-mapping.dmp
      • memory/1852-0-0x0000000073A30000-0x000000007411E000-memory.dmp
        Filesize

        6.9MB

      • memory/1852-1-0x0000000000EC0000-0x0000000000EC1000-memory.dmp
        Filesize

        4KB

      • memory/1852-4-0x0000000000490000-0x0000000000493000-memory.dmp
        Filesize

        12KB

      • memory/1852-5-0x0000000007E80000-0x0000000007ED3000-memory.dmp
        Filesize

        332KB

      • memory/1992-3-0x000007FEF7120000-0x000007FEF739A000-memory.dmp
        Filesize

        2.5MB