Overview

overview

10

Static

static

RQF.492549...ex.exe

windows7_x64

10

RQF.492549...ex.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    141s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:40

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General

  • Target

    RQF.49254960 annex.exe

  • Size

    1.1MB

  • MD5

    05b38d4a44ea9242439c3143809cc1e5

  • SHA1

    f0b6b086ae839312178d27ea01e8034cbefab227

  • SHA256

    9d12d73cdddda4b11bbfa38b1bc056e20063a75f38decb5e8af5e6a30c078673

  • SHA512

    e5123993d2631d6fb10f14b32ca3313979e6297716b29aa99081e134214c73ae49142c403a1288362dfc4d715a8791ade7ccb0d819d690b5f7561ab98012adb3

Score
10/10
massloggercollectionransomwarespywarestealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit 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 2:56:46 AM MassLogger Started: 5/21/2022 2:56:30 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\RQF.49254960 annex.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> 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 42 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\RQF.49254960 annex.exe
    "C:\Users\Admin\AppData\Local\Temp\RQF.49254960 annex.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2628
    • C:\Users\Admin\AppData\Local\Temp\RQF.49254960 annex.exe
      "{path}"
      2⤵
        PID:4408
      • C:\Users\Admin\AppData\Local\Temp\RQF.49254960 annex.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:4468

    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

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RQF.49254960 annex.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      Download Submit
    • memory/2628-130-0x00000000004C0000-0x00000000005E2000-memory.dmp
      Filesize

      1.1MB

      Download
    • memory/2628-131-0x00000000054E0000-0x0000000005A84000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/2628-132-0x0000000004FD0000-0x0000000005062000-memory.dmp
      Filesize

      584KB

      Download
    • memory/2628-133-0x0000000004F90000-0x0000000004F9A000-memory.dmp
      Filesize

      40KB

      Download
    • memory/2628-134-0x0000000005420000-0x00000000054BC000-memory.dmp
      Filesize

      624KB

      Download
    • memory/4408-135-0x0000000000000000-mapping.dmp
      Download
    • memory/4468-136-0x0000000000000000-mapping.dmp
      Download
    • memory/4468-137-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

      Download
    • memory/4468-139-0x0000000005AF0000-0x0000000005B56000-memory.dmp
      Filesize

      408KB

      Download
    • memory/4468-140-0x0000000008270000-0x00000000082C0000-memory.dmp
      Filesize

      320KB

      Download