Malicious PDF — malware analysis report

Static analysis result for SHA-256 6385075c11bf07cd…

MALICIOUS

PDF

33.9 KB Created: 2021-06-28 05:23:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1727b1d647e6c6d85efac7a7055f885c SHA-1: 2e306f97b7f20e983f70c4d0b562a2a29dde385c SHA-256: 6385075c11bf07cd816678689ebdd92e213fa775966dc9175a7ea29e2c56a36c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as game hacks and generators for popular games like Roblox and Minecraft. The heuristic firings indicate that the PDF is designed to lure users into clicking these links, which likely lead to further malicious content or downloads. No scripts were extracted, but the embedded URLs and the nature of the lures strongly suggest a phishing or malware distribution 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/mejor-hacker-de-roblox-game-hack In PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/roblox-superhero-tycoon-cheats_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-unused-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-buy-clothes-in-roblox-xbox-1-free_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/2021-roblox-accounts-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/roblox-but_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/hack-roblox-vehicle-simulator-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off0000303a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x303A 21268 bytes
SHA-256: 4e0ca0f4aff18a3618d2f27a01fdf2200ac969ce529a261ca3f2f0084f7b9b26
font_01_sfnt_off00005ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBB 19208 bytes
SHA-256: 8f7fc4b2e3db81b96996ff936ae28ff930e68468d6d80d1c037d7372ede704de

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