Malicious PDF — malware analysis report

Static analysis result for SHA-256 14276c841a428d5c…

MALICIOUS

PDF

35.4 KB Created: 2021-06-25 13:28:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6bb7a0306d84fb539239210037dc1eb7 SHA-1: aa9e2663deefd972a591ac4b75183393cfd80c6f SHA-256: 14276c841a428d5c80c741dd1490fddf734b9ccf16688a40717177c2cc2238e6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to entice users. It contains multiple links, including a critical one to a known malicious redirector at http://netcdn.co/app/431946152/how-to-get-free-robux-2021-no-human-verification-game-hack. The presence of such redirectors and the overall theme suggest a phishing or scam campaign, likely delivered as a spearphishing attachment.

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/how-to-get-free-robux-2021-no-human-verification-game-hack In PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-girl-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/hacks-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/dll-dor-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/mcpe-hacks_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-free-pants-catalog_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-adopt-me-money-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-30-days-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-cheatszip-file-size-813-kb-md5-value-94bfbfb41eba4e2021202111f2021f6_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-sparkle-time-shirt_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000304b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x304B 22676 bytes
SHA-256: bf8f31494c2445a3241984ec1d1331e71f9acbd5d35abb58e9df7aea1a0af253
font_01_sfnt_off000062f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F5 19900 bytes
SHA-256: 73ca12d001f484cb7e916eddfb38cb68c81d0268ac20e02f4c1cc4bb789b0b63

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