Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89ec9756b5b2906…

MALICIOUS

PDF

46.5 KB Created: 2021-06-08 18:17:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e55e4dfa65455d93eb9cdb286dae0176 SHA-1: 68d78e30dfccb352892b33eff764178ac5c3cf04 SHA-256: d89ec9756b5b290624933997d469acae6f795eac5d748f5d24dd5394fca17cf4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.tw/app/431946152/how-to-hack-someone-account-on-roblox-2021-game-hack PDF link annotation
    • http://www.copoint.co.uk/images/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-images_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-coin_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/getrobux-ninja_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/getrobux-come_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-insert-a-hack-script-into-roblox-game_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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
stream_004_off0000522f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x522F 26852 bytes
SHA-256: 5ac80be88bd3d93a2768f2b5660e539082fb5c0b520caf0f74a4b585b45e1c67
font_01_sfnt_off0000901f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x901F 19252 bytes
SHA-256: b81fe3e10039b153e30c3d48c72aa991e8ddbb6b9bb998c122726869a3d0fd31

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