Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd47cc899bfe36f2…

MALICIOUS

PDF

33.6 KB Created: 2021-06-25 13:20:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 61ec23aea1d664c03430f6ade0afe860 SHA-1: 502b14666846d784b4c21a5d7e496ae19c2d3e35 SHA-256: fd47cc899bfe36f2dab0b6c9a328ef99dc93257099b94a1e9f4ec3f14fc03664
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The heuristic firings confirm that the PDF links to a known malicious redirector and uses a lure for free generators. The document body and extracted URLs reinforce this finding by advertising various game-related exploits and cheats.

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/case-clicker-hack-roblox-game-hack In PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/inject-hack-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-roblox-packs_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/pubg-uc-in-pakistan_GM1330123889.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-admin-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-hack-into-any-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-account-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-free-followers-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-nike-outfits-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/birds-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-mod_GM406889139.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_off00002ca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA2 22556 bytes
SHA-256: f76eb273d37b137f228d9218a7988666625198df7d15ecf222aa16d7f2bc607a
font_01_sfnt_off00005f08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F08 18776 bytes
SHA-256: 48b9e6a4484519082a4b8773604aab105058875121b473a570c92d3a33ad4c52

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