Malicious PDF — malware analysis report

Static analysis result for SHA-256 32e2bb41bf93ca99…

MALICIOUS

PDF

34.4 KB Created: 2021-06-25 22:17:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 3de7bff2450d3ac2656785802b8fe60b SHA-1: ebad84a8230306e4db98403fd95fac7a4e8cb561 SHA-256: 32e2bb41bf93ca99c12606ce03ab4276be4b6cdf949976c452150f7e4e346411
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that lead to a malicious redirector infrastructure, masquerading as free game hacks or generators. The document body and heuristics indicate a lure for users to click these links, likely to download further malicious content or be redirected to phishing sites. No scripts were extracted, but the presence of malicious redirector links and the lure content strongly suggest a malicious intent.

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/free-robux-servery-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-using-promo-codes_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/spin-coin_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/rbx-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/descargar-hack-para-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/btools-hack-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/all-the-roblox-hacker-ids_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-free-anamations_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/exploit-engine-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/www-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-app_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_off00002f9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9D 22396 bytes
SHA-256: e8dd3cce1b0d6b5bbc817f5f4ab0b88ff8243e1362ccf68d0dee5dcd853b9100
font_01_sfnt_off0000617e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617E 19012 bytes
SHA-256: c0541a5d6200ab17734b4952abc6c0a8b533a715d99044a6ee13c1a52db76e39

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