Malicious PDF — malware analysis report

Static analysis result for SHA-256 b17a1a822db0a831…

MALICIOUS

PDF

43.4 KB Created: 2021-05-10 14:17:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 67d8916a3604ec71e3011e03f7eeb150 SHA-1: 2f931c81fb53817de4ac61ccade1a9ce24ffd1b1 SHA-256: b17a1a822db0a8314461bab8924b0a20e489c007c691dc7ec54cc90543bf82d9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/roblox-avatar-editor-free-game-hack PDF link annotation
    • https://library.elkatarie.ac.id/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-coin_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/coin-spin-link_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-no-verification-no-download-2021_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
stream_003_off000049e3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49E3 25792 bytes
SHA-256: 9b281326390518b2f176f0fae689ef863dd220b12eb4c1280d0801c131dc26c4
font_01_sfnt_off0000860e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860E 18688 bytes
SHA-256: df5bcc24373e296ec4817c651a2102fa03399b65c3de23d7ceb8af082f98641c

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