Malicious PDF — malware analysis report

Static analysis result for SHA-256 368c49eb55251c75…

MALICIOUS

PDF

41.4 KB Created: 2021-05-14 16:51:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a56cd3d86148b504758b32cb204615fd SHA-1: 6433d5951f1f17b34ed1802c32408fc5b5fb9b7b SHA-256: 368c49eb55251c75fcf334bee44651bf95ec97366b94d0d3c8ae831e6f8d393a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a heuristic firing indicating it's a game hack redirector lure. The primary URL, https://netcdn.xyz/app/406889139/coin-master-free-spins-iphone-game-hack, strongly suggests a social engineering tactic to trick users into visiting a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document designed to lead users to potentially harmful content.

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/406889139/coin-master-free-spins-iphone-game-hack PDF link annotation
    • http://asiashop-france.fr/images/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://asiashop-france.fr/images/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-free-spins--coins-2021_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://asiashop-france.fr/images/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/100-robux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/robux-earner_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
stream_003_off00004785.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4785 24752 bytes
SHA-256: 25035b608ee90f4b82bae0a93808e4d0f939e52ca39c5377f36cbb162552cf2f
font_01_sfnt_off0000801a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801A 18052 bytes
SHA-256: 7a041e18439e61f25930bd292384183aeabfbba1b3f01f5156e579a6d202eabd

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