Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6112fbf77f215f5…

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 21:21:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 3ae8c5b3ebcde88452f5654e146620c7 SHA-1: 5c33e0d6c0741e9005a621d42f9a4f364b62db60 SHA-256: c6112fbf77f215f5c2a9a7ddc4962f2b2b09245b6f2980ffdf3a08c89dfe51b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically a site offering a 'game hack'. The document body text and heuristics indicate a lure for users to download or access potentially harmful content. No scripts were extracted, but the presence of malicious redirectors and the lure suggest a phishing or social engineering attack.

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.tw/app/406889139/hack-coin-master-for-free-game-hack In PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/roblox-immortal-hack_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/daily-coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-today_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-to-get-a-free-tail-on-roblox_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/roblox-images_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/easy-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/como-hackear-robux_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-to-get-free-glasses-on-roblox_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/hacked-money-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/wizard-roblox-hack_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/tiktok-free-save_GM835599320.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-robux-without-checking-if-you-are-a-robot_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/dife-com-free-robux_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_off000032e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32E5 23108 bytes
SHA-256: f3034382f4e103e0ac5ebb8e4d36ba63aadfd0c5fd96f61df2fe8fbbfea36352
font_01_sfnt_off00006685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6685 18168 bytes
SHA-256: be72a1914a99b846651b156c672e0768d1f742f579973333786d0ab12deac364

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