Analysis

  • max time kernel
    119s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    30/11/2020, 14:24

General

  • Target

    PAYMENT REMIT COPY 673578.pif.exe

  • Size

    611KB

  • MD5

    7a2383c694b62f4e180ce68ca761407a

  • SHA1

    4bb84adc5fa25b720776947e1d677a01e4e38fb5

  • SHA256

    53683da1f2e21ec38952bbde9fd4e04330333cbda4185d1562f99ab31af17ea5

  • SHA512

    a0732860c30f05470db2fc7d25cb3d8c8261729d7a2cbbd1d0f079a8bd72df7ae87a62d73c12ff29a4cf5540972b0abd17daeaa78537dc3e8b7a9a15e55dbd75

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 2 IoCs
  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PAYMENT REMIT COPY 673578.pif.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT REMIT COPY 673578.pif.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3584
    • C:\Users\Admin\AppData\Local\Temp\PAYMENT REMIT COPY 673578.pif.exe
      "C:\Users\Admin\AppData\Local\Temp\PAYMENT REMIT COPY 673578.pif.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:204

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/204-21-0x0000000007410000-0x0000000007411000-memory.dmp

    Filesize

    4KB

  • memory/204-20-0x0000000007170000-0x0000000007171000-memory.dmp

    Filesize

    4KB

  • memory/204-18-0x0000000006830000-0x0000000006831000-memory.dmp

    Filesize

    4KB

  • memory/204-13-0x0000000073900000-0x0000000073FEE000-memory.dmp

    Filesize

    6.9MB

  • memory/204-10-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/3584-6-0x00000000057B0000-0x00000000057B1000-memory.dmp

    Filesize

    4KB

  • memory/3584-9-0x0000000005B70000-0x0000000005B86000-memory.dmp

    Filesize

    88KB

  • memory/3584-8-0x0000000007480000-0x0000000007518000-memory.dmp

    Filesize

    608KB

  • memory/3584-7-0x0000000005760000-0x0000000005761000-memory.dmp

    Filesize

    4KB

  • memory/3584-2-0x0000000073900000-0x0000000073FEE000-memory.dmp

    Filesize

    6.9MB

  • memory/3584-5-0x0000000005C10000-0x0000000005C11000-memory.dmp

    Filesize

    4KB

  • memory/3584-3-0x0000000000E90000-0x0000000000E91000-memory.dmp

    Filesize

    4KB