Overview

overview

10

Static

static

doc0767572...57.exe

windows7_x64

10

doc0767572...57.exe

windows10-2004_x64

5

Analysis

  • max time kernel
    58s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 19:11

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General

  • Target

    doc07675720200626101857.exe

  • Size

    930KB

  • MD5

    243a515982e6eba872d6366ec71d63b6

  • SHA1

    85b71070f258dce1b5f92ea4aaa117419f6b8828

  • SHA256

    420da876f8efdf70da0ec0ccd1b7aaa09547b6868d5fc655c05b50eadf20c360

  • SHA512

    cfaf4f25351c10962d143de38df4758d1359224975520bc1345d284ab62254b75e6115c1283b47331b312e0e624329f8c402235cb8682d9007419ad0b89122a4

Score
10/10
massloggercollectionransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\8506BBE7FF\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/24/2022 9:44:42 PM MassLogger Started: 5/24/2022 9:44:30 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\doc07675720200626101857.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    mail.yaprakmoda.com
  • Port:
    587
  • Username:
    info@yaprakmoda.com
  • Password:
    Ww3bJ5P9

Signatures

  • MassLogger

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

    stealerspywaremasslogger
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • 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.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs
    collection
  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\doc07675720200626101857.exe
    "C:\Users\Admin\AppData\Local\Temp\doc07675720200626101857.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Users\Admin\AppData\Local\Temp\doc07675720200626101857.exe
      "C:\Users\Admin\AppData\Local\Temp\doc07675720200626101857.exe"
      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:1488

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/1488-56-0x0000000000540BB0-mapping.dmp
    Download
  • memory/1488-58-0x0000000001EC0000-0x0000000001F5A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1488-57-0x0000000001EC0000-0x0000000001F5A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1488-60-0x00000000024A0000-0x00000000024E4000-memory.dmp
    Filesize

    272KB

    Download
  • memory/1488-61-0x0000000002665000-0x0000000002676000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1488-62-0x0000000005710000-0x0000000005724000-memory.dmp
    Filesize

    80KB

    Download
  • memory/1884-54-0x00000000759E1000-0x00000000759E3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1884-55-0x0000000000400000-0x00000000004EF000-memory.dmp
    Filesize

    956KB

    Download