Analysis

  • max time kernel
    86s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    08/10/2020, 12:29

General

  • Target
    AWfxqwWHtpJvgYx.exe
  • Size 1.0MB
  • Sample201008-4elf2f3mls
  • SHA256 f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.com

  • Port

    587

  • Password

    ayo2018

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AWfxqwWHtpJvgYx.exe
    "C:\Users\Admin\AppData\Local\Temp\AWfxqwWHtpJvgYx.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1332
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NcoJFE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBEAD.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1648
    • C:\Users\Admin\AppData\Local\Temp\AWfxqwWHtpJvgYx.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1924

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1332-4-0x0000000005280000-0x0000000005352000-memory.dmp

        memory/1332-3-0x0000000000390000-0x0000000000394000-memory.dmp

        memory/1332-0-0x0000000074670000-0x0000000074D5E000-memory.dmp

        memory/1332-5-0x0000000005EF0000-0x0000000005FC5000-memory.dmp

        memory/1332-1-0x0000000000A30000-0x0000000000A31000-memory.dmp

        memory/1924-8-0x0000000000400000-0x0000000000486000-memory.dmp

        memory/1924-10-0x0000000000400000-0x0000000000486000-memory.dmp

        memory/1924-11-0x0000000000400000-0x0000000000486000-memory.dmp

        memory/1924-12-0x0000000074670000-0x0000000074D5E000-memory.dmp

        memory/1924-16-0x00000000056D0000-0x0000000005709000-memory.dmp

        memory/1924-17-0x0000000005CA0000-0x0000000005D2D000-memory.dmp