Analysis

  • max time kernel
    71s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    01/12/2020, 14:19

General

  • Target

    PURCHASE.exe

  • Size

    1.0MB

  • MD5

    9d1cdf69f551af40c1a7751c978cf097

  • SHA1

    bb7e5cd610da1dfe8004ef3bbca45013b502f7bf

  • SHA256

    01b712edb711a5ff50c21720fbca31081e9e376b4abd410f235d6d0e0d043726

  • SHA512

    d88ff5f569071d96589793fc4b693e158fef351f553a5cd189ac10c295b0df9636cce6d3e41d0b70dc318fe86c65e6983f94c861b9e177d06b83cea9341f1e0c

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.

  • 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
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:636
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sWiACXUvRplzzN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3C00.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:632
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3512
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2596

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/636-3-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/636-5-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

    Filesize

    4KB

  • memory/636-6-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

    Filesize

    4KB

  • memory/636-7-0x0000000004B90000-0x0000000004B91000-memory.dmp

    Filesize

    4KB

  • memory/636-8-0x00000000059E0000-0x00000000059E1000-memory.dmp

    Filesize

    4KB

  • memory/636-9-0x00000000054B0000-0x00000000054B1000-memory.dmp

    Filesize

    4KB

  • memory/636-10-0x0000000004CE0000-0x0000000004CEE000-memory.dmp

    Filesize

    56KB

  • memory/636-11-0x0000000006410000-0x000000000650E000-memory.dmp

    Filesize

    1016KB

  • memory/636-2-0x00000000739E0000-0x00000000740CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2596-45-0x00000000094F0000-0x00000000094F1000-memory.dmp

    Filesize

    4KB

  • memory/2596-50-0x00000000099C0000-0x00000000099C1000-memory.dmp

    Filesize

    4KB

  • memory/2596-48-0x00000000099D0000-0x00000000099D1000-memory.dmp

    Filesize

    4KB

  • memory/2596-47-0x0000000009A20000-0x0000000009A21000-memory.dmp

    Filesize

    4KB

  • memory/2596-25-0x00000000739E0000-0x00000000740CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2596-46-0x0000000009860000-0x0000000009861000-memory.dmp

    Filesize

    4KB

  • memory/2596-27-0x0000000004C40000-0x0000000004C41000-memory.dmp

    Filesize

    4KB

  • memory/2596-28-0x00000000078B0000-0x00000000078B1000-memory.dmp

    Filesize

    4KB

  • memory/2596-30-0x00000000077B0000-0x00000000077B1000-memory.dmp

    Filesize

    4KB

  • memory/2596-31-0x0000000007EE0000-0x0000000007EE1000-memory.dmp

    Filesize

    4KB

  • memory/2596-33-0x0000000008050000-0x0000000008051000-memory.dmp

    Filesize

    4KB

  • memory/2596-34-0x0000000007860000-0x0000000007861000-memory.dmp

    Filesize

    4KB

  • memory/2596-35-0x00000000087F0000-0x00000000087F1000-memory.dmp

    Filesize

    4KB

  • memory/2596-36-0x0000000008740000-0x0000000008741000-memory.dmp

    Filesize

    4KB

  • memory/2596-38-0x0000000009710000-0x0000000009743000-memory.dmp

    Filesize

    204KB

  • memory/3512-26-0x00000000071A0000-0x00000000071A1000-memory.dmp

    Filesize

    4KB

  • memory/3512-14-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/3512-22-0x0000000006850000-0x0000000006851000-memory.dmp

    Filesize

    4KB

  • memory/3512-17-0x00000000739E0000-0x00000000740CE000-memory.dmp

    Filesize

    6.9MB