Analysis

  • max time kernel
    112s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    14-04-2022 13:35

General

  • Target

    17a6fd7bcc92bc7d7888bec3f794b884349b1cde6a4bb701d12dc7815a74ddca.exe

  • Size

    1.3MB

  • MD5

    ba954d90751d0ba2a5add8586863f854

  • SHA1

    1cd8a5562e6d656d4d3c6fcda1490ee3ab31c4fe

  • SHA256

    17a6fd7bcc92bc7d7888bec3f794b884349b1cde6a4bb701d12dc7815a74ddca

  • SHA512

    0803f29e6ce290701fa9d2a531d16d9c4a89a6d8ee5856ec8e2b5367cdfb81ee5a055064d2197a044e65ff64ea4be0581a2da10a013ff850a3a3f71af184771a

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 6 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs
  • 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 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\17a6fd7bcc92bc7d7888bec3f794b884349b1cde6a4bb701d12dc7815a74ddca.exe
    "C:\Users\Admin\AppData\Local\Temp\17a6fd7bcc92bc7d7888bec3f794b884349b1cde6a4bb701d12dc7815a74ddca.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Users\Admin\AppData\Local\Temp\17a6fd7bcc92bc7d7888bec3f794b884349b1cde6a4bb701d12dc7815a74ddca.exe
      "C:\Users\Admin\AppData\Local\Temp\17a6fd7bcc92bc7d7888bec3f794b884349b1cde6a4bb701d12dc7815a74ddca.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:896

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/896-58-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/896-59-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/896-61-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/896-62-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/896-63-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/896-66-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/896-68-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/896-69-0x00000000006C5000-0x00000000006D6000-memory.dmp

    Filesize

    68KB

  • memory/1764-55-0x0000000002076000-0x0000000002087000-memory.dmp

    Filesize

    68KB

  • memory/1764-56-0x0000000005020000-0x00000000050BC000-memory.dmp

    Filesize

    624KB

  • memory/1764-57-0x00000000020B0000-0x00000000020CC000-memory.dmp

    Filesize

    112KB

  • memory/1764-54-0x0000000000A00000-0x0000000000B5A000-memory.dmp

    Filesize

    1.4MB