Analysis

  • max time kernel
    47s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    30/11/2020, 14:25

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 4 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 12 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:1756
    • 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:1464

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1464-7-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/1464-9-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/1464-10-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/1464-11-0x00000000749D0000-0x00000000750BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1756-2-0x00000000749D0000-0x00000000750BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1756-3-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/1756-5-0x0000000004C40000-0x0000000004CD8000-memory.dmp

    Filesize

    608KB

  • memory/1756-6-0x0000000000860000-0x0000000000876000-memory.dmp

    Filesize

    88KB