Analysis

  • max time kernel
    143s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 01:54

General

  • Target
    22b5f8406c571287c3efb678fd9ad213679c45e96e7d99ce33a0c17c1005830c.exe
  • Size 717KB
  • Sample240601-cbs5wsdg41
  • SHA256 22b5f8406c571287c3efb678fd9ad213679c45e96e7d99ce33a0c17c1005830c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.goldseal.com.vn

  • Port

    587

  • Password

    dkVd1auQYr

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\22b5f8406c571287c3efb678fd9ad213679c45e96e7d99ce33a0c17c1005830c.exe
    "C:\Users\Admin\AppData\Local\Temp\22b5f8406c571287c3efb678fd9ad213679c45e96e7d99ce33a0c17c1005830c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4832
    • C:\Users\Admin\AppData\Local\Temp\22b5f8406c571287c3efb678fd9ad213679c45e96e7d99ce33a0c17c1005830c.exe
      "C:\Users\Admin\AppData\Local\Temp\22b5f8406c571287c3efb678fd9ad213679c45e96e7d99ce33a0c17c1005830c.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1184
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3620 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2364

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1184-11-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/1184-18-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/1184-17-0x00000000067A0000-0x00000000067F0000-memory.dmp

          memory/1184-16-0x0000000005980000-0x00000000059E6000-memory.dmp

          memory/1184-15-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/1184-13-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/4832-4-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/4832-7-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

          memory/4832-8-0x0000000007F90000-0x0000000007FA0000-memory.dmp

          memory/4832-9-0x0000000008250000-0x00000000082D4000-memory.dmp

          memory/4832-10-0x000000000A9C0000-0x000000000AA5C000-memory.dmp

          memory/4832-6-0x0000000007F70000-0x0000000007F88000-memory.dmp

          memory/4832-5-0x0000000005570000-0x000000000557A000-memory.dmp

          memory/4832-14-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/4832-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

          memory/4832-3-0x00000000055B0000-0x0000000005642000-memory.dmp

          memory/4832-2-0x0000000005B60000-0x0000000006104000-memory.dmp

          memory/4832-1-0x0000000000AC0000-0x0000000000B74000-memory.dmp