Malicious PDF — malware analysis report

Static analysis result for SHA-256 d463e426387e154b…

MALICIOUS

PDF

22.6 KB Created: 2021-07-01 05:44:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: fd0b5e5f8c45330d63c1c25656436772 SHA-1: 9355f2d5f28a515250cfd45c79e45f139c58890b SHA-256: d463e426387e154bbc647d0b9989491542b1019759bc03a13f3a4acd48efd66c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links to known malicious redirectors, specifically advertising 'free generator / game hack' lures for popular games like Roblox and Coin Master. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into visiting potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent through redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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/welcome-to-free-robux-game-hack In PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-money-on-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-generator-hack-no-survey_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-infinite-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-ro-ghoul-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/games-on-roblox-that-will-give-u-free-hat-youtubecom_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-hack-a-game-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/getgaming-resources-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-make-clothes-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-valentine-generator-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-hack-hide-and-seek_GM431946152.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F07 22232 bytes
SHA-256: 253b49216c77543bcc22a8540f5ec1d61e1c23304d46c2a02bc938b6184126bc

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