Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:16

General

  • Target

    New products_Inquiry00000000PDF.scr

  • Size

    1007KB

  • MD5

    4410f1e9106370721dd61b665e62db98

  • SHA1

    eadff44552f64370b85c35abd736c39465fd833d

  • SHA256

    6d8dbdf39f97cc1b6730d7eb7b2ac7f60ac2026e5ac33edb00093f1a87cfcf9a

  • SHA512

    60ee671e4b37b6cc58ae8bd7351e475f8279827ea7eab30d463e4e201db99b9300b84d21b997ffc029e5cbbb6e4a5efcddb71dceb661a644a4a4227eb3009c67

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\0F48153F20\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.4.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 1:47:06 AM MassLogger Started: 5/21/2022 1:47:00 AM Interval: 1 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.pirc-energy.co.uk
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    [}cHJZymZgEq

Signatures

  • MassLogger

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

  • MassLogger Main Payload 32 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Checks computer location settings 2 TTPs 2 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 18 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr
    "C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr" /S
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4668
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DrndlXgU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB85.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3960
    • C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr
      "{path}"
      2⤵
        PID:4500
      • C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr
        "{path}"
        2⤵
        • Checks computer location settings
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4512

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\New products_Inquiry00000000PDF.scr.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\tmpBB85.tmp

      Filesize

      1KB

      MD5

      d8dde1fd32f747b0c1e95bdc092e5137

      SHA1

      fa9716a6be912794dbf9284a9b8387ffa7e9a30c

      SHA256

      57625bbba5911e5bbaff1016036610ef939e823314e64049374c782d4d9f996d

      SHA512

      a83509ecd004f2419c423b34d6a5a657bbd4ea9aece7acff91693564be5fe837a0b59eed9d5225a16e4b11ec0269b1322562a1b7b6f2f890ce3bd96864442579

    • memory/3960-135-0x0000000000000000-mapping.dmp

    • memory/4500-137-0x0000000000000000-mapping.dmp

    • memory/4512-164-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-196-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-650-0x0000000005770000-0x00000000057C0000-memory.dmp

      Filesize

      320KB

    • memory/4512-649-0x00000000063B0000-0x0000000006416000-memory.dmp

      Filesize

      408KB

    • memory/4512-138-0x0000000000000000-mapping.dmp

    • memory/4512-139-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-202-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-142-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-144-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-146-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-150-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-148-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-152-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-154-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-156-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-158-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-160-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-168-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-200-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-198-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-162-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-170-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-172-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-174-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-176-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-178-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-180-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-182-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-184-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-186-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-188-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-190-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-192-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-194-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4512-166-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/4668-134-0x000000000B040000-0x000000000B0DC000-memory.dmp

      Filesize

      624KB

    • memory/4668-131-0x00000000078B0000-0x0000000007E54000-memory.dmp

      Filesize

      5.6MB

    • memory/4668-130-0x0000000000430000-0x0000000000530000-memory.dmp

      Filesize

      1024KB

    • memory/4668-132-0x00000000073E0000-0x0000000007472000-memory.dmp

      Filesize

      584KB

    • memory/4668-133-0x00000000073B0000-0x00000000073BA000-memory.dmp

      Filesize

      40KB