Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ba0227cd7aa4ff1…

MALICIOUS

PDF

42.7 KB Created: 2021-05-12 06:05:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 95220d3d242476efae0aa5b2b76b16be SHA-1: e17932f0bc4540d01a1b6c20cc0821993a765f96 SHA-256: 0ba0227cd7aa4ff1d426b27e884d3a7d17e90f8a7f5003917fe384b3c5e99546
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 0.9971

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/406889139/legit-coin-master-hack-without-verification-game-hack PDF link annotation
    • http://pspmrsmbpulau.com/opac/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/my-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/i-want-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/100-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-spins-and-coins-com_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ac3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC3 24464 bytes
SHA-256: c21f20ff06efbd8a20ffc8f2f03733f80b1b6ba8768c0bdcc10aea0783c50f83
font_01_sfnt_off00008344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8344 18640 bytes
SHA-256: a1f22d70f852995b865d153835fabf5a0db5ca93827c35320966ba9d902e38a2

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