Analysis

  • max time kernel
    144s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 03:26

General

  • Target

    Order.exe

  • Size

    827KB

  • MD5

    54abb3b9641794bf6782a8eb95d7e654

  • SHA1

    ecca49abda088a688aa790fbc93d645d651099b9

  • SHA256

    82d2632f0337cc3a8f3cf580317835431a2dc64077ab6e1fb0e6f8a72d46e714

  • SHA512

    4d5743fd7e5ec697bbbb7feb4dfe366d121bf5987feca886fd1c86eb54824ffadda80430a35b5a366bfe77b944f1bc1d2b13d955bf47d4a6ba2bd2e4201128ba

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\F95B724EDE\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 127.0.0.1 Location: United States Windows OS: Microsoft Windows 10 Pro64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 7:05:27 AM MassLogger Started: 5/21/2022 7:05:14 AM Interval: 9 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Order.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

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.

  • Modifies visibility of file extensions in Explorer 2 TTPs
  • 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 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.

  • 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 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Order.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2672
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DvxybizoCTP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2C5F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4960

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Hidden Files and Directories

1
T1158

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp2C5F.tmp
    Filesize

    1KB

    MD5

    3cc1c07d44e6fc469a993a368ce4f980

    SHA1

    d08ebbb3d31c7630eb539352b0c8eec90ae227c9

    SHA256

    32739443033df5a65798d548405805a5069853c624b18de97adcec85fced4120

    SHA512

    e13359a251c029f36041a964f9c02798f060b100ab7dd839c7a7713ca18964e15ceab674b79b0bf495397e8ba6494d0c63307e756fb79f4df0bd179b2efbeb6c

  • memory/2672-130-0x0000000000CD0000-0x0000000000DA6000-memory.dmp
    Filesize

    856KB

  • memory/2672-131-0x0000000005720000-0x00000000057BC000-memory.dmp
    Filesize

    624KB

  • memory/2672-132-0x00000000058F0000-0x0000000005982000-memory.dmp
    Filesize

    584KB

  • memory/2672-133-0x00000000077F0000-0x0000000007D94000-memory.dmp
    Filesize

    5.6MB

  • memory/2672-136-0x0000000008120000-0x0000000008186000-memory.dmp
    Filesize

    408KB

  • memory/2672-137-0x00000000091E0000-0x00000000091EA000-memory.dmp
    Filesize

    40KB

  • memory/2672-138-0x0000000009B50000-0x0000000009BA0000-memory.dmp
    Filesize

    320KB

  • memory/4960-134-0x0000000000000000-mapping.dmp