Malicious PDF — malware analysis report

Static analysis result for SHA-256 05c0253d3711b63f…

MALICIOUS

PDF

34.9 KB Created: 2021-06-22 11:03:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ba83b709bad1ec9d23dda3b8683e2aa2 SHA-1: 36873e7dcecf320b14c067dd83c4c17b29307993 SHA-256: 05c0253d3711b63f760f3dc4a01b55f17f511e352ee16bf5d4aeec9041695bb7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free currency, directing users to a known malicious redirector. The embedded URLs and document content strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment. No scripts were extracted, but the overall pattern indicates a redirection to a malicious site for further exploitation.

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/479516143/minecraft-free-unblocked-game-hack In PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/roblox-free-executor_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/50-000-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-mak20217_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/20-free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/win-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/vip-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-roblox-pro-accounts_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-free-400-spin-link_GM406889139.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_off000031f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F6 23040 bytes
SHA-256: f456fadb52e01fa8a2c4a1a61207a2865b3e4eb4104a6f1b59c55781fe184951
font_01_sfnt_off0000643b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643B 18760 bytes
SHA-256: 895a36f5a5f90913cb79adc07e2b796c0bdee1bc761bccd5f30adeaa4bf49632

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