Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4390a7196a91f6…

MALICIOUS

PDF

34.9 KB Created: 2021-06-26 10:53:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7aec875220a22e4cbb57319fd8c00d1b SHA-1: a1bb17578a10855cf2fdfbd3cd8f47358f24a749 SHA-256: fe4390a7196a91f6c21cdd00f287ee21d64fd1a3e203ff0e0e2d10960523f889
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to "Baby Simulator Hack Roblox" and an embedded URI pointing to a download URL. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous related URLs suggests a phishing or malware distribution campaign. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious download attempt, likely initiated via spearphishing.

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/baby-simulator-hack-roblox-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-objet-2021-roblox-cape_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-ban-or-kick-in-servers-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-alone-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/counter-blox-roblox-offensive-cheat_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-retro-craftwars-script-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-gift-card-codes-2021-july_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/se-puede-hackear-nighthawk-imperoum-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/more-robux-for-free-no-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/injector-de-hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-rc7-free-account_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_off00003026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3026 22440 bytes
SHA-256: 6707c7e4b1c41f863c8496767ac9fd59c644ad4f6549da9ac732dcc6380e6bbd
font_01_sfnt_off0000624c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624C 19460 bytes
SHA-256: 1a2b6a648874ffdeded6054301aff3ef6053e736c41593f02bba263f911fad3b

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