Analysis

  • max time kernel
    150s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    09/07/2020, 08:02

General

  • Target

    Archivo-Factura-Telefonica0054487901.exe

  • Size

    7.2MB

  • MD5

    0942f77f57ddfef74dfacbcb9ad4cb5c

  • SHA1

    8e7f652e9e63d249a5b02f3caeec9a720b58b11d

  • SHA256

    c3019b15a61bc3f84e6f7eb3779a26a25556a934b1fa567d51708c16dfd1b632

  • SHA512

    97646d8586616d5f0894231bf1a824d5ee7b9e043fc539b5385a2591660a60f75c966cac803a1cada21ad78098c901340504e188a7ef258c00a18f00e4433684

Malware Config

Signatures

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Executes dropped EXE 1 IoCs
  • 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.

  • Checks whether UAC is enabled 2 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Enumerates connected drives 3 TTPs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Archivo-Factura-Telefonica0054487901.exe
    "C:\Users\Admin\AppData\Local\Temp\Archivo-Factura-Telefonica0054487901.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    • Loads dropped DLL
    PID:1604
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://telefonicafinanciero.com/1591911299.jpg
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      • Checks whether UAC is enabled
      • Suspicious use of WriteProcessMemory
      • Suspicious use of FindShellTrayWindow
      PID:1632
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1632 CREDAT:275457 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        • Checks whether UAC is enabled
        PID:1788
    • C:\ProgramData\FBzqedADc9\Atikus9Bumpers.exe
      "C:\ProgramData\FBzqedADc9\Atikus9Bumpers.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Executes dropped EXE
      • Drops startup file
      • Loads dropped DLL
      PID:2044

Network

MITRE ATT&CK Enterprise v6

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