Malicious PDF — malware analysis report

Static analysis result for SHA-256 49dd6369ef87c37d…

MALICIOUS

PDF

36.0 KB Created: 2021-06-26 05:59:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d2182318102fd3aa3b731de80259dbbf SHA-1: 7b663bfbd647bf6a568f45273e6b79851812ba6e SHA-256: 49dd6369ef87c37df8874e12bc31e5f4d3dead048b2075965988164548bb1309
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a lure of free game hacks for popular titles like Roblox and Minecraft, directing users to external URLs. These URLs, such as 'http://netcdn.co/app/431946152/free-aimbot-hacks-for-roblox-game-hack', are likely part of a phishing or malware distribution chain. The ML classifier strongly flagged this PDF as malicious, supporting the observed lure and embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-aimbot-hacks-for-roblox-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/hacks-for-roblox-apps_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-online-android_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/rbx-earn_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-knives-in-roblox-assassin-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-real-working_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_off00003471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3471 22712 bytes
SHA-256: f6439dd66b8edffe5a2a16eab6c37a50775f3f60191420f726a68af222a849d9
font_01_sfnt_off0000672e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x672E 19304 bytes
SHA-256: 7b530d270ab6b91845f642c34541741a719a2d2b358628ebe3a5eee22daa1a4c

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