Analysis

  • max time kernel
    93s
  • max time network
    209s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/09/2024, 01:01

General

  • Target
    cotización.PDF_98776456879808756846576879806765687976457687986764.exe
  • Size 88.0MB
  • Sample240918-bdlyxstgrh
  • SHA256 001b21318e75c49c1b0e415008530611da89163328b29d65ade1f7edde25328d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.fosna.net

  • Port

    21

  • Password

    =A+N^@~c]~#I

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Looks up external IP address via web service 1 IoCs

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

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cotización.PDF_98776456879808756846576879806765687976457687986764.exe
    "C:\Users\Admin\AppData\Local\Temp\cotización.PDF_98776456879808756846576879806765687976457687986764.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2636
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\cotización.PDF_98776456879808756846576879806765687976457687986764.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1504

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1504-12-0x0000000006DA0000-0x0000000006E32000-memory.dmp

        memory/1504-4-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/1504-7-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

        memory/1504-8-0x0000000005F10000-0x00000000064B4000-memory.dmp

        memory/1504-9-0x00000000058B0000-0x0000000005916000-memory.dmp

        memory/1504-10-0x0000000074A50000-0x0000000075200000-memory.dmp

        memory/1504-11-0x0000000006CB0000-0x0000000006D00000-memory.dmp

        memory/1504-13-0x0000000006D30000-0x0000000006D3A000-memory.dmp

        memory/1504-14-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

        memory/1504-15-0x0000000074A50000-0x0000000075200000-memory.dmp

        memory/2636-3-0x0000000004460000-0x0000000004860000-memory.dmp

        memory/2636-6-0x0000000000400000-0x00000000004C2000-memory.dmp

        memory/2636-0-0x0000000000400000-0x00000000004C2000-memory.dmp