Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5645edeabd7bf3a…

MALICIOUS

PDF

41.9 KB Created: 2021-05-12 23:32:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1ba58e30659068cc393a790a953b57a3 SHA-1: 73bd2e94c1a4858f79a0556be3eb76372b2d2cce SHA-256: e5645edeabd7bf3a58d3d1f20e061f45349f2e8c9df1dff9afb8fbb82d11f4ad
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks, directing users to external URLs. The primary URL, 'https://netcdn.xyz/app/431946152/easy-robux-generator-game-hack', is associated with a game hack redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/easy-robux-generator-game-hack PDF link annotation
    • https://www.vacationrentalsincroatia.com/images/coin-master-free-box_GM406889139.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/free-robux-script_GM431946152.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/minecraft_GM479516143.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/mcpe-download_GM479516143.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.vacationrentalsincroatia.com/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48F0 25120 bytes
SHA-256: eaa252c56f7606101bf31b2b1fc351118045c3381ac45deec689ac8853bf4332
font_01_sfnt_off00008104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8104 18360 bytes
SHA-256: 31f26fbfc7f81002b444b70a1657336c723b940a34509e70260c3e3e292c9165

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