Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/12/2023, 17:34

General

  • Target
    SOA.exe
  • Size 375KB
  • Sample231218-v5ehpsdeb3
  • SHA256 3934d48c77cb712a0ee30371d372b3198f60e6e90b79d93dca8c972640e889c8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.karthikagro.in

  • Port

    587

  • Password

    Yenks@0910

Signatures

  • AgentTesla

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

  • Executes dropped EXE 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SOA.exe
    "C:\Users\Admin\AppData\Local\Temp\SOA.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4100
    • C:\Users\Admin\AppData\Local\Temp\rydaehv.exe
      "C:\Users\Admin\AppData\Local\Temp\rydaehv.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2712
      • C:\Users\Admin\AppData\Local\Temp\rydaehv.exe
        "C:\Users\Admin\AppData\Local\Temp\rydaehv.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2704

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        dkgerawve.n

        • Path C:\Users\Admin\AppData\Local\Temp\dkgerawve.n
        • Size 334KB
        • SHA256 7b3b127e5f676f7f8dbbb5a3c56ecdb0ae555529fca42473cd4dbe6b23a97c07
        • MD5 SHA1 SHA512 SSDEEP

        rydaehv.exe

        • Path C:\Users\Admin\AppData\Local\Temp\rydaehv.exe
        • Size 82KB
        • SHA256 c16fde1ab6967fa53bbe6a4245f6db28496b40cab88392f1ee4c8547afb150de
        • MD5 SHA1 SHA512 SSDEEP

        memory/2704-15-0x0000000004E80000-0x0000000004E90000-memory.dmp

        memory/2704-16-0x0000000005440000-0x00000000059E4000-memory.dmp

        memory/2704-9-0x0000000000400000-0x0000000000453000-memory.dmp

        memory/2704-10-0x0000000000400000-0x0000000000453000-memory.dmp

        memory/2704-11-0x0000000000400000-0x0000000000453000-memory.dmp

        memory/2704-12-0x0000000004C90000-0x0000000004CD2000-memory.dmp

        memory/2704-13-0x0000000073FE0000-0x0000000074790000-memory.dmp

        memory/2704-14-0x0000000004E80000-0x0000000004E90000-memory.dmp

        memory/2704-24-0x0000000004E80000-0x0000000004E90000-memory.dmp

        memory/2704-7-0x0000000000400000-0x0000000000453000-memory.dmp

        memory/2704-17-0x0000000004E00000-0x0000000004E66000-memory.dmp

        memory/2704-18-0x0000000006350000-0x00000000063A0000-memory.dmp

        memory/2704-19-0x0000000006440000-0x00000000064DC000-memory.dmp

        memory/2704-20-0x0000000073FE0000-0x0000000074790000-memory.dmp

        memory/2704-21-0x0000000006580000-0x0000000006612000-memory.dmp

        memory/2704-22-0x0000000006520000-0x000000000652A000-memory.dmp

        memory/2704-23-0x0000000004E80000-0x0000000004E90000-memory.dmp

        memory/2712-5-0x00000000001F0000-0x00000000001F2000-memory.dmp