Malicious PDF — malware analysis report

Static analysis result for SHA-256 69067af2c6c37d6e…

MALICIOUS

PDF

36.1 KB Created: 2021-07-07 08:12:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 33b7e840d34b0431d4dbd054d4d2557c SHA-1: 2787b336f361e8745cc22f5f7b4a17aa7637e449 SHA-256: 69067af2c6c37d6e5d6ff09982d5763bfc269e55e80d63946ebce4913f054a71
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for Robux. The primary lure URL is http://netcdn.tw/app/431946152/roblox-how-to-get-robux-with-cheat-engine-63-game-hack, which is flagged as a known malicious redirector. The document body and heuristics confirm the intent to trick users into visiting these malicious sites, likely as part of a phishing or scam campaign.

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-how-to-get-robux-with-cheat-engine-63-game-hack In PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/hack-de-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-to-roblox-card_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-robux-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/do-you-want-free-robux-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/hacks-robux-gratis_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/pokemon-go-free-yamask_GM1094591345.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/fnaf-hack-script-roblox_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-mad-games-roblox_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32EE 23092 bytes
SHA-256: 1433a64b78074daf6618e40b085d467466fb4504014a7af908c7a9fad8ddc134
font_01_sfnt_off00006697.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6697 19536 bytes
SHA-256: 149cbe4e2f317141f98dbf1feafdf5e47ac7b5fbac005e244df20839bda1a904

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