Analysis

  • max time kernel
    60s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • 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 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.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:596
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sWiACXUvRplzzN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA05.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:396
    • 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:1484
      • 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:1512

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/596-2-0x0000000073D40000-0x000000007442E000-memory.dmp

    Filesize

    6.9MB

  • memory/596-3-0x0000000000B80000-0x0000000000B81000-memory.dmp

    Filesize

    4KB

  • memory/596-5-0x00000000008A0000-0x00000000008AE000-memory.dmp

    Filesize

    56KB

  • memory/596-6-0x00000000059F0000-0x0000000005AEE000-memory.dmp

    Filesize

    1016KB

  • memory/1484-9-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1484-11-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1484-12-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1484-13-0x0000000073020000-0x000000007370E000-memory.dmp

    Filesize

    6.9MB

  • memory/1512-17-0x0000000073020000-0x000000007370E000-memory.dmp

    Filesize

    6.9MB

  • memory/1512-18-0x00000000004B0000-0x00000000004B1000-memory.dmp

    Filesize

    4KB

  • memory/1512-19-0x0000000004A20000-0x0000000004A21000-memory.dmp

    Filesize

    4KB

  • memory/1512-20-0x00000000024C0000-0x00000000024C1000-memory.dmp

    Filesize

    4KB

  • memory/1512-21-0x0000000002710000-0x0000000002711000-memory.dmp

    Filesize

    4KB

  • memory/1512-24-0x0000000005650000-0x0000000005651000-memory.dmp

    Filesize

    4KB

  • memory/1512-29-0x00000000056F0000-0x00000000056F1000-memory.dmp

    Filesize

    4KB

  • memory/1512-30-0x0000000006100000-0x0000000006101000-memory.dmp

    Filesize

    4KB

  • memory/1512-37-0x0000000006240000-0x0000000006241000-memory.dmp

    Filesize

    4KB

  • memory/1512-38-0x00000000061F0000-0x00000000061F1000-memory.dmp

    Filesize

    4KB

  • memory/1512-52-0x0000000006300000-0x0000000006301000-memory.dmp

    Filesize

    4KB

  • memory/1512-53-0x0000000006310000-0x0000000006311000-memory.dmp

    Filesize

    4KB