Analysis

  • max time kernel
    141s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    13/06/2023, 11:57

General

  • Target

    07209699.exe

  • Size

    331KB

  • MD5

    0a5bf39759616592c2d8b63fc4192a2f

  • SHA1

    40b88666a41c6126033bc51b30ba22d8c51caa22

  • SHA256

    282472e5ce51674338ee76271b47826134eec156881b186646dda5a6ecd16433

  • SHA512

    27b3592acf961078ee47c512ea6f1696ea99b48cc7a305a95dd73fcae906e15661a195b1a1cee67f131c793080d85f790262c4a0409123e8375046bf21af93dc

  • SSDEEP

    6144:AYa6NyXckF3bXM7AYJ21rHjMGtFbVqGhvU4BT:AYDtkFL87AYJwrHjMGtF5rUo

Malware Config

Signatures

  • AgentTesla

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

  • Loads dropped DLL 1 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.

  • 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 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\07209699.exe
    "C:\Users\Admin\AppData\Local\Temp\07209699.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Users\Admin\AppData\Local\Temp\07209699.exe
      "C:\Users\Admin\AppData\Local\Temp\07209699.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1988

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\Temp\nsy2B86.tmp\mhhxspafxw.dll

          Filesize

          77KB

          MD5

          004af3591176dc0dbc2690c051eba70b

          SHA1

          d9b08af774b8cba56fd089edf5a810378a8ca25a

          SHA256

          fb8bee0870363217219ac5fff07745ef07653fad5f433f5e378c43eccaf1253b

          SHA512

          50f33937f16ddc73acfa2295973cc4799777c38d3740a87c098eb0450f6369a7a19d56b511d15a97e9a3640b61555fb02cf90acf7e471a0c4d6d0944298cd946

        • memory/1988-61-0x0000000000400000-0x0000000000441000-memory.dmp

          Filesize

          260KB

        • memory/1988-63-0x0000000000400000-0x0000000000441000-memory.dmp

          Filesize

          260KB

        • memory/1988-64-0x0000000000490000-0x00000000004C0000-memory.dmp

          Filesize

          192KB

        • memory/1988-65-0x0000000004710000-0x0000000004750000-memory.dmp

          Filesize

          256KB

        • memory/1988-66-0x0000000000400000-0x0000000000441000-memory.dmp

          Filesize

          260KB

        • memory/1988-67-0x0000000004710000-0x0000000004750000-memory.dmp

          Filesize

          256KB

        • memory/1988-70-0x0000000004710000-0x0000000004750000-memory.dmp

          Filesize

          256KB

        • memory/1988-69-0x0000000004710000-0x0000000004750000-memory.dmp

          Filesize

          256KB