Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f8362b947147259…

MALICIOUS

PDF

43.4 KB Created: 2021-06-03 09:19:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: abee103711ff546652bbc6fc3416aff0 SHA-1: e88f2484b5491fedc24067377037a8ac0f1ad54e SHA-256: 3f8362b94714725992bdef5172f2592d8ec544361dd1fba484d140c5db71250a
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 0.9865

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.online/app/406889139/coin-master-gold-cards-free-link-game-hack PDF link annotation
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/pokemon-go-free-promo-codes-2021_GM1094591345.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/roblox-source_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/mcpe_GM479516143.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/tiktok-free-download-apk_GM835599320.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-free-spins-link-today-new-2021_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
stream_004_off00004ee2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EE2 24960 bytes
SHA-256: c673d4ec60dcff3a90f1b3f22e9d22f3e4d84fcfc94552604cef61c33f123b9e
font_01_sfnt_off0000878a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x878A 18128 bytes
SHA-256: 3c7d889e052bb081026c5a88f6ee2afe5bc892e32bf973502febc93f4313d009

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