Malicious PDF — malware analysis report

Static analysis result for SHA-256 a61361593f7ddb27…

MALICIOUS

PDF

35.5 KB Created: 2021-07-03 15:50:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f3d72c3376abd273e6562d6f3efd1370 SHA-1: 69f1896b5b181b49f7724c47b23db98d8cd66c21 SHA-256: a61361593f7ddb27ead7447d4089665d47387c15c3802ec4713db819d1cf9b2d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free currency, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. The embedded URLs are likely part of a phishing or scam campaign designed to trick users into visiting potentially harmful sites.

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.tw/app/431946152/can-you-get-free-robux-on-roblox-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/free-roblox-clothes-for-girl_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-cheat-engine-table-download_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/pubg-uc-free_GM1330123889.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/can-you-get-banned-on-roblox-for-hacking_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-game-pass-hack-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-glack-wings-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-with-synapse_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/accounts-that-give-free-robux-when-you-visit-it_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-safe-ways-to-get-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32BC 22700 bytes
SHA-256: 2f52dea49c78ee4b0c0a47b91eda67f51192f2c197faeaef308abfb9f2d812f1
font_01_sfnt_off000065b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B5 19056 bytes
SHA-256: 212cafc25ec0536741ac5c1aa90543f36b34a777adc44243741e4ba36ab4d37b

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