Analysis

  • max time kernel
    42s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    04/05/2022, 07:47

General

  • Target
    Request For Quotation.exe
  • Size 267KB
  • Sample220504-jmh8dsddf4
  • SHA256 96e0c00307bf79e2654ea97fb673dd755d2d3e2ea9e17fbc774b286f6d4c3273
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.nexcourier.ae

  • Port

    587

  • Password

    hGu)/6EVD8W$

Signatures

  • AgentTesla

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

  • suricata: ET MALWARE AgentTesla Exfil Via SMTP

    suricata: ET MALWARE AgentTesla Exfil Via SMTP

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Request For Quotation.exe
    "C:\Users\Admin\AppData\Local\Temp\Request For Quotation.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Users\Admin\AppData\Local\Temp\qoxrzsfb.exe
      C:\Users\Admin\AppData\Local\Temp\qoxrzsfb.exe C:\Users\Admin\AppData\Local\Temp\egqxhc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1080
      • C:\Users\Admin\AppData\Local\Temp\qoxrzsfb.exe
        C:\Users\Admin\AppData\Local\Temp\qoxrzsfb.exe C:\Users\Admin\AppData\Local\Temp\egqxhc
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1448

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        egqxhc

        • Path C:\Users\Admin\AppData\Local\Temp\egqxhc
        • Size 5KB
        • SHA256 f567f1d60eff990cbe0a283bf8977b6234c41ab4394d2d74ba5a7b4991302a41
        • MD5 SHA1 SHA512 SSDEEP

        qoxrzsfb.exe

        • Path C:\Users\Admin\AppData\Local\Temp\qoxrzsfb.exe
        • Size 5KB
        • SHA256 b44d9ea06943bc03c21c988c6d5540ec79c94ad4ea51c25dcd59d7bb584289de
        • MD5 SHA1 SHA512 SSDEEP

        qoxrzsfb.exe

        • Path C:\Users\Admin\AppData\Local\Temp\qoxrzsfb.exe
        • Size 5KB
        • SHA256 b44d9ea06943bc03c21c988c6d5540ec79c94ad4ea51c25dcd59d7bb584289de
        • MD5 SHA1 SHA512 SSDEEP

        qoxrzsfb.exe

        • Path C:\Users\Admin\AppData\Local\Temp\qoxrzsfb.exe
        • Size 5KB
        • SHA256 b44d9ea06943bc03c21c988c6d5540ec79c94ad4ea51c25dcd59d7bb584289de
        • MD5 SHA1 SHA512 SSDEEP

        xirn3phh9u

        • Path C:\Users\Admin\AppData\Local\Temp\xirn3phh9u
        • Size 279KB
        • SHA256 0262ca7dcc2894638f0cb00b0401ea8d0caabe2c6f6e241e649bdbcd30488580
        • MD5 SHA1 SHA512 SSDEEP

        qoxrzsfb.exe

        • Path \Users\Admin\AppData\Local\Temp\qoxrzsfb.exe
        • Size 5KB
        • SHA256 b44d9ea06943bc03c21c988c6d5540ec79c94ad4ea51c25dcd59d7bb584289de
        • MD5 SHA1 SHA512 SSDEEP

        qoxrzsfb.exe

        • Path \Users\Admin\AppData\Local\Temp\qoxrzsfb.exe
        • Size 5KB
        • SHA256 b44d9ea06943bc03c21c988c6d5540ec79c94ad4ea51c25dcd59d7bb584289de
        • MD5 SHA1 SHA512 SSDEEP

        memory/1448-63-0x0000000000400000-0x0000000000449000-memory.dmp

        memory/1448-68-0x0000000000400000-0x0000000000449000-memory.dmp

        memory/1448-69-0x0000000001D90000-0x0000000001DCA000-memory.dmp

        memory/1448-70-0x0000000000400000-0x0000000000449000-memory.dmp

        memory/1624-54-0x0000000075C71000-0x0000000075C73000-memory.dmp