Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eda62377c77f64a…

MALICIOUS

PDF

35.5 KB Created: 2021-07-08 01:03:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 169c08553a3f5d6cdae5c53c4dd42c20 SHA-1: 11b11b6fb4675e50962d34ef69d8147c78ba6f9a SHA-256: 6eda62377c77f64a74546f9ee68300fbe19daa4cbd41d02ba79da40ba615fc85
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacking and free in-game currency to entice users. It contains embedded links that direct to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or downloads. The ML classifier strongly indicated maliciousness, supporting the observed redirection behavior.

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/431946152/how-to-hack-a-roblox-account-easy-game-hack In PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/robux-offers_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/free-robux-without-downloading-any-games_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/free-robux-generator-2021-no-human-vrification_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/how-to-earn-free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/how-to-get-xbox-avatar-clothes-free-on-roblox-pc_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-gamepass-on-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-twitter_GM406889139.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/original-roblox_GM431946152.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/free-spins-from-coin-master_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_off00003366.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3366 22280 bytes
SHA-256: bcf68ce1f22db83511ea9b275b75740e30ad6a8bb3067c8f6fedc67c40477893
font_01_sfnt_off00006517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6517 19244 bytes
SHA-256: 4dcbe17bebf2382ad99832b5327dd7065748ff6dacf6eb853322815bf961736f

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