Malicious PDF — malware analysis report

Static analysis result for SHA-256 6785d6611a028ad2…

MALICIOUS

PDF

37.7 KB Created: 2021-06-28 06:44:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d753c27fe70ee69ff5ba9b81365f648a SHA-1: 2b90e4d991dff51b8ce45efbf75c945da33a8494 SHA-256: 6785d6611a028ad20878af14b4b9bb4b13cb8e84ce638ddb7be95854d2550c32
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game items and hacks, directing users to a suspicious URL. The presence of embedded URLs and the ML classifier's high confidence indicate a malicious intent to redirect users to potentially harmful content or downloads. No scripts were extracted, but the document structure and embedded links strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/change-your-username-on-roblox-for-free-game-hack PDF link annotation
    • http://perpustakaan.ipts.ac.id/repository/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/wurst-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-free-catalog-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-site-17-hacker_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-hack-org_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-get-2021-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-hacking-websites-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-hack-a-roblox-user-account-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-robux-information_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-parkour-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/song-id-for-free-money-cardi-b-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/como-usar-hacks-en-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/glitch-to-get-free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/pubg-uc-ykleme-midasbuy_GM1330123889.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-hightspeed-roblox-with-cheat-engine-windows-10-universal_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00003b72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B72 22500 bytes
SHA-256: f9b68e3b78db7717f7a3398db066c6607314d0ddee9bfd37ed6825f59cf0b26b
font_01_sfnt_off00006ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDD 19380 bytes
SHA-256: 2615577240423669bc175072362bcd5ee8de950ddba5c80d10ed9fb3c52d2826

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