Analysis

  • max time kernel
    140s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    10/05/2021, 07:03

General

  • Target
    DHL_AWB# 9284730932 doc.exe
  • Size 760KB
  • Sample210510-rns71xtcb6
  • SHA256 c3d7fef20e22a2a50e8762c39aa40caae7ec5a074ce39bb610f58ea2c6349f20
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.esquiresweaters.com

  • Port

    587

  • Password

    Esquire@#2078

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL_AWB# 9284730932 doc.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL_AWB# 9284730932 doc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4008
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OkmfJCr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB094.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1140
    • C:\Users\Admin\AppData\Local\Temp\DHL_AWB# 9284730932 doc.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL_AWB# 9284730932 doc.exe"
      2⤵
        PID:3084
      • C:\Users\Admin\AppData\Local\Temp\DHL_AWB# 9284730932 doc.exe
        "C:\Users\Admin\AppData\Local\Temp\DHL_AWB# 9284730932 doc.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2080

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2080-117-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/2080-120-0x0000000002F00000-0x0000000002F01000-memory.dmp

          memory/2080-121-0x0000000002F01000-0x0000000002F02000-memory.dmp

          memory/4008-114-0x0000000000AD0000-0x0000000000AD1000-memory.dmp