Analysis

  • max time kernel
    129s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    14-07-2020 13:31

General

  • Target

    plcfeVYdiIOV5jX.exe

  • Size

    992KB

  • MD5

    d1a32e0c76d6987491bb615870cff8e8

  • SHA1

    4b1d30b1216c65f3bdf893127c8e293f4e33bcec

  • SHA256

    8435871f09b1ba4c78f547c3bda0c509e426601221f60b455f6b6cb9d8a2f1ce

  • SHA512

    659525820f88d841dd5f0a32ccf30d3bb6f5964e92f16ccdb2e87fe1a1126af21f8ce78abd87bb2110854b98cd9d6beedf0df3e78da8b506fe9068a86d2fdd5f

Malware Config

Signatures

  • 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 AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of WriteProcessMemory 17 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

Processes

  • C:\Users\Admin\AppData\Local\Temp\plcfeVYdiIOV5jX.exe
    "C:\Users\Admin\AppData\Local\Temp\plcfeVYdiIOV5jX.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: EnumeratesProcesses
    PID:376
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fHCIaxvalqwwiS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1888
    • C:\Users\Admin\AppData\Local\Temp\plcfeVYdiIOV5jX.exe
      "{path}"
      2⤵
        PID:324
      • C:\Users\Admin\AppData\Local\Temp\plcfeVYdiIOV5jX.exe
        "{path}"
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: AddClipboardFormatListener
        PID:648

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpA8A.tmp

    • memory/376-1-0x0000000000000000-0x0000000000000000-disk.dmp

    • memory/648-4-0x0000000000400000-0x000000000049A000-memory.dmp

      Filesize

      616KB

    • memory/648-5-0x00000000004945BE-mapping.dmp

    • memory/648-6-0x0000000000400000-0x000000000049A000-memory.dmp

      Filesize

      616KB

    • memory/648-7-0x0000000000400000-0x000000000049A000-memory.dmp

      Filesize

      616KB

    • memory/1888-2-0x0000000000000000-mapping.dmp