Malicious PDF — malware analysis report

Static analysis result for SHA-256 653a4545421f3456…

MALICIOUS

PDF

35.0 KB Created: 2021-06-29 12:21:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: df63867eb2344214f13166a063454a73 SHA-1: 6d16ceb7b3a9a532f1f47436e9874dd538ab1f49 SHA-256: 653a4545421f3456b3410a80bb40240ff6ef835ae32b3f46b0b64ceca22c8476
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The document body and heuristics indicate a lure for users to click these links, likely leading to further malicious content or downloads. No scripts were extracted from this sample, but the embedded URLs and redirector findings strongly suggest a phishing or scam attempt.

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.co/app/431946152/fabulous-2-roblox-hack-game-hack In PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-personal-server-hack_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-giving-personal-info_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/hackear-roblox-juegos_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/hacks-fur-roblox-dinosimolator_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/robux-hack-without-survey_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/wwwrobloxcom-games-for-free_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-speed-race-cheats_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/hackes-de-roblox-en-mini-guegos_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/my-account-was-hacked-roblox_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/good-hacks-free-roblox_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/neon-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-hack-build-a-boat-for-treasure_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-get-free-builders-club-on-roblox-on-phone_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-get-free-permanent-robux_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-card-codes-hack_GM431946152.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_off00003173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3173 22524 bytes
SHA-256: e6d29f6b1ce12cdf301e172fe5c7ccc15035048af22543628346f69b4fb49d78
font_01_sfnt_off000063ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AC 19084 bytes
SHA-256: 8b9417567e5948f91b7d6daff21e637be39ce646b1715a26dff1b2aaba37fc93

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