Malicious PDF — malware analysis report

Static analysis result for SHA-256 367cc22c9168e14f…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 12:38:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e025151716fa3ab0f012ccb2aaff4063 SHA-1: c8a0295dd9aedb18d195c5149daa2e085b966875 SHA-256: 367cc22c9168e14fad68c08fb8bad61f863899ccc853b4145cd5242e1efdfa49
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs that lead to known malicious redirectors, disguised as game hacks for popular titles like Roblox and Coin Master. The document body and heuristics indicate a lure to download or access illegitimate content, likely leading to further malware or scams. No scripts were extracted, but the primary attack vector is the redirection to malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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
  • 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/roblox-heroes-online-game-hack In PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-hack-invisible_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/best-roblox-hacked-clients-2021-youtube_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/400-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-free-model-roller-coaster_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/synapse-roblox-hack-price_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/tiktok-free-books-website_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-griffin-code-roblox-adopt_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/can-you-download-minecraft-for-free_GM479516143.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_off00002f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6F 21968 bytes
SHA-256: b3887b27e59d9ae1f0b7ab14bee8ecdea1d589246fd9d0138154d9fc8bfa8bed
font_01_sfnt_off00005fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC9 18608 bytes
SHA-256: 5bcc181662f876a0ec27a1a0695994c56ab33d09e860c554124bd06b45b0d474

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