Analysis

  • max time kernel
    58s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    27/08/2020, 08:23

General

  • Target
    Q-MET-ADM.155.1.27.08.20.PDF.exe
  • Size 1.2MB
  • Sample200827-aak4d4vtkj
  • SHA256 28be4e1d7d755f714d035010882bc44f62a6d5f3ace60c57e589da0b755c0254
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • 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
  • 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 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Q-MET-ADM.155.1.27.08.20.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Q-MET-ADM.155.1.27.08.20.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RbBDilNTGcbqfS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1534.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1988
    • C:\Users\Admin\AppData\Local\Temp\Q-MET-ADM.155.1.27.08.20.PDF.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1812
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 968
        3⤵
          PID:1556

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1556-8-0x0000000001E30000-0x0000000001E41000-memory.dmp

          memory/1812-3-0x0000000000400000-0x00000000004E2000-memory.dmp

          memory/1812-5-0x0000000000400000-0x00000000004E2000-memory.dmp

          memory/1812-6-0x0000000000400000-0x00000000004E2000-memory.dmp