Malicious PDF — malware analysis report

Static analysis result for SHA-256 facab96015616254…

MALICIOUS

PDF

33.4 KB Created: 2021-06-27 21:46:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4fb9ebbccfab2a4ca4e62425748de0ca SHA-1: 736f627f0017f9fe958721ab4700f583bda2cfb1 SHA-256: facab96015616254118d7354bc441cf4e5c0386b7fc76625d029873362fdfe1c
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 free currency generators. The primary lure is 'Hack De Roblox Para Atravesar Cosas Facil Hack', directing users to http://netcdn.co/app/431946152/hack-de-roblox-para-atravesar-cosas-facil-hack-game-hack. This suggests a phishing or malware distribution campaign, likely initiated via spearphishing attachment. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/hack-de-roblox-para-atravesar-cosas-facil-hack-game-hack In PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/tiktok-followers-for-free_GM835599320.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-game-free_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-instagram_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/tiktok-for-free_GM835599320.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-roblox-card_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/get-free-coin-master_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/cheat-money-roblox-tycoon_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-hack-roblox_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_off00002a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A97 22456 bytes
SHA-256: 7b69053e301d26e1dcb1bfa93fda99829adaf7b6e84e160a0296cb31654d7d7f
font_01_sfnt_off00005ca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA8 19480 bytes
SHA-256: 52ac7229259e72769218c7756df5dbd76305e534ff4d62959f610fbbd0791268

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