Overview

overview

10

Static

static

PO7883.pdf.exe

windows7_x64

10

PO7883.pdf.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    36s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 14:12

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General

  • Target

    PO7883.pdf.exe

  • Size

    1.1MB

  • MD5

    ada5beecde7f9234cfea4e0654758f9e

  • SHA1

    6d9679f46a29b18d3caadb9217b0fa1790c42578

  • SHA256

    391bd050efa8e5d02a1d1a5bb174374efce434f2457fdb0ca4c26f92341e4fa5

  • SHA512

    eca76675eb7411c129891ad2dcc87e9b65a67a15fe0d75856737e7bd4d5ebb5b56ffb4836d31764e2663b34e06600a04642c84fec1e6ea2207443d1704eeeee9

Score
10/10
massloggercollectionransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note
<|| v2.2.0.0 ||> User Name: Admin IP: 154.61.71.50 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: 5/20/2022 5:13:16 PM MassLogger Started: 5/20/2022 5:12:55 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO7883.pdf.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Window Searcher ||> Disabled <|| Downloader ||> 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

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\PO7883.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PO7883.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:108
    • C:\Users\Admin\AppData\Local\Temp\PO7883.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\PO7883.pdf.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:1296

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/108-54-0x0000000075A61000-0x0000000075A63000-memory.dmp
    Filesize

    8KB

    Download
  • memory/108-56-0x00000000003E0000-0x00000000003EF000-memory.dmp
    Filesize

    60KB

    Download
  • memory/1296-55-0x0000000000599880-mapping.dmp
    Download
  • memory/1296-57-0x0000000002120000-0x00000000021E4000-memory.dmp
    Filesize

    784KB

    Download
  • memory/1296-58-0x0000000002120000-0x00000000021E4000-memory.dmp
    Filesize

    784KB

    Download
  • memory/1296-60-0x0000000002790000-0x0000000002808000-memory.dmp
    Filesize

    480KB

    Download
  • memory/1296-61-0x0000000004E05000-0x0000000004E16000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1296-62-0x0000000005220000-0x0000000005234000-memory.dmp
    Filesize

    80KB

    Download