Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb3ae600128aeac4…

MALICIOUS

PDF

34.9 KB Created: 2021-06-29 12:00:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a7cf31e4e8731a8f627d9524043ef82c SHA-1: b5d8d760a8a633dd0d8e14777582612a402a0a3e SHA-256: eb3ae600128aeac442ab103e654fb672114d72daf14c8a148b66ae69dc60ec93
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary link, http://netcdn.co/app/431946152/roblox-pokemon-brick-bronze-cheat-codes-game-hack, is identified as a lure for free game cheats. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely leveraging a client-side exploit or redirecting to a malicious site. The ML classifier also flagged this PDF with high confidence.

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/roblox-pokemon-brick-bronze-cheat-codes-game-hack In PDF document text
    • http://library.patria-artha.ac.id/repository/exploit-script-executor-free-download-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-change-roblox-username-for-free-2021-mobilr_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-immortal-hack-blood-of-iron_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/robux-hack-no-questions_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/serena-ryder-wild-and-free-id-roblox-code_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-thats-free_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/cheats-for-prison-life-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-cheat-god-mode_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/project-alpha-roblox-cheats_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_off00002f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F85 22552 bytes
SHA-256: 435ad29ee343a02fa0618ae06f53bb6f592ce74e8d43022dc350ea09bebbd639
font_01_sfnt_off000061b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B7 19716 bytes
SHA-256: 8f21bb5599b99f99f12d71f2b4cb504cdb5da4dd6c5e9bfc1efb2c4966ccd73b

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