Analysis

  • max time kernel
    69s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    18-04-2022 16:40

General

  • Target

    a5d3bf6b4727fbe435e717df13830214af88a92da444b8c703963c1dc714f600.exe

  • Size

    2.4MB

  • MD5

    aab869f15a4048f4ea8f49cf6cfc3050

  • SHA1

    9794a27695d81472be42b6bae0b6dc79eec949ca

  • SHA256

    a5d3bf6b4727fbe435e717df13830214af88a92da444b8c703963c1dc714f600

  • SHA512

    badc5482cee146c556fafb136dad38d0e3b6823042e8c3b2201a5663275983248a778fe7878b36e606c55e372a3dcfd9bcdab6443c3fb9cc6b0abbc0990db5c4

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 1 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
  • 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 behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5d3bf6b4727fbe435e717df13830214af88a92da444b8c703963c1dc714f600.exe
    "C:\Users\Admin\AppData\Local\Temp\a5d3bf6b4727fbe435e717df13830214af88a92da444b8c703963c1dc714f600.exe"
    1⤵
    • 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:1236

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1236-54-0x0000000001100000-0x0000000001366000-memory.dmp

    Filesize

    2.4MB

  • memory/1236-55-0x0000000000D00000-0x0000000000D68000-memory.dmp

    Filesize

    416KB

  • memory/1236-56-0x0000000000D70000-0x0000000000DF6000-memory.dmp

    Filesize

    536KB

  • memory/1236-57-0x0000000004F75000-0x0000000004F86000-memory.dmp

    Filesize

    68KB