Malicious PDF — malware analysis report

Static analysis result for SHA-256 28572183e262b5ce…

MALICIOUS

PDF

47.9 KB Created: 2021-06-03 23:04:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 67e6e88c0cd842f1d2928cee42c63e08 SHA-1: dd500bee5f2b99cac50cb1ca28f80ef854a3aabb SHA-256: 28572183e262b5ceda6c44c4a620b7ced21525851e3002b6406db4ab54e313a7
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 0.9796

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/get-free-spins-coin-master-game-hack PDF link annotation
    • https://opac.heritagejkt.org//repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-fan_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-generator-free_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-free-master_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/rbx-earn_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/robux-2021-free_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/can-you-really-hack-coin-master-ios_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051d3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51D3 26028 bytes
SHA-256: 3f7cf592ddafb2b910210d6a79e345a801ac6c3297805c032246417660c7e016
font_01_sfnt_off00008eca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ECA 3400 bytes
SHA-256: 75c3a8e6f5c68e0746f893c922e57fd7e888a21fb038f9ae3eedb0a197a59e24
font_02_sfnt_off000099ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99ED 17884 bytes
SHA-256: b0210710b9f532dde69bab3e54691bd54d84b0d7d990975f20826afd1ba27450

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