Analysis

  • max time kernel
    97s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:15

General

  • Target

    Purchase List.exe

  • Size

    869KB

  • MD5

    d0454c5763ed33859b7e691a2b758a53

  • SHA1

    b5922dd8d08302b632e14848868534c9c55e275a

  • SHA256

    a695f00451136422236ac536e9a7417a8826001ecb0ba51e582687cb0dc3f0ba

  • SHA512

    cf3b3b7fcd1baed5fa294104032206e2ad6bd6c46df53b576a3a45ca3062e8167baf8eee1621f42deffb016e44538f324bdb71a502f405f804bfb63b8eee67ff

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.5.0 ################################################################# ### 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 12:29:39 PM MassLogger Started: 5/21/2022 12:29:36 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Purchase List.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.tcsqatar.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Talebdanielokoth@2013

Signatures

  • MassLogger

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

  • 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase List.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase List.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4052
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\woUSvxLUnlfbH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC60F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1704
    • C:\Users\Admin\AppData\Local\Temp\Purchase List.exe
      "{path}"
      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:1680

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchase List.exe.log

    Filesize

    507B

    MD5

    ab4c71d3ff6255edd4e5c1e09540f49e

    SHA1

    22e06bf4e258741b5df918061871cba998c50cea

    SHA256

    1690fec628f775dd3c3385b800eed126b37978ef2ffd592b024052724caafb5a

    SHA512

    8fa7d0045796e6cda7c28e2b9a690ef550619828c1b5d0ebf8e8367aff4bf4d9f63121e5b4f199d30cb8006eb584c6767f4c59150749b8256dab9dd0ebd9f1af

  • C:\Users\Admin\AppData\Local\Temp\tmpC60F.tmp

    Filesize

    1KB

    MD5

    5c0933335379dda5f1c4a0a96eb15ea9

    SHA1

    ab284bd63c99c31f5367d2bf5c340a60a2d720b8

    SHA256

    2224e28ab3d00891b9a51832b98ecb62084446ebea4ce1e224e79475cb25667e

    SHA512

    2bba4eabd550d84979e4fd9887a4e838e7dc697fdc43f4329de75cc5cd15ec7667855e2a6d5d77df595b866a2fb840627e4ba48d477841e6480b26effeac20f7

  • memory/1680-162-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-140-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-649-0x0000000007790000-0x00000000077E0000-memory.dmp

    Filesize

    320KB

  • memory/1680-166-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-136-0x0000000000000000-mapping.dmp

  • memory/1680-170-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-648-0x0000000006C40000-0x0000000006C4A000-memory.dmp

    Filesize

    40KB

  • memory/1680-168-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-142-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-144-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-146-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-148-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-150-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-152-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-154-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-156-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-158-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-160-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-647-0x00000000053C0000-0x0000000005426000-memory.dmp

    Filesize

    408KB

  • memory/1680-164-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-200-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-198-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-137-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-172-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-174-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-176-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-178-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-180-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-182-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-184-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-186-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-190-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-188-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-192-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-194-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1680-196-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

  • memory/1704-134-0x0000000000000000-mapping.dmp

  • memory/4052-133-0x0000000005BD0000-0x0000000006174000-memory.dmp

    Filesize

    5.6MB

  • memory/4052-132-0x0000000004C00000-0x0000000004C92000-memory.dmp

    Filesize

    584KB

  • memory/4052-130-0x0000000000050000-0x0000000000130000-memory.dmp

    Filesize

    896KB

  • memory/4052-131-0x0000000004AC0000-0x0000000004B5C000-memory.dmp

    Filesize

    624KB