Malicious PDF — malware analysis report

Static analysis result for SHA-256 32b22ebac4ef5959…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 05:30:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3fb4854c80b88eecd42c0e7e9182a15f SHA-1: ab142fd80a37b380aca9d292e1d68ecda213e665 SHA-256: 32b22ebac4ef5959efa385cf7270d78b7e296d729ae9864755049d8d459a3b01
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 0.9980

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/roblox-how-to-make-t-shirts-free-game-hack PDF link annotation
    • http://smpn1sda.sch.id/slims/repository/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free4mobile24-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-catalog-robloxcom_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/codes-for-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-skeleton-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-inspect-element-no-waiting_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-hack-menu-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-minecraft-coins_GM479516143.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
font_00_sfnt_off00002fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE3 22232 bytes
SHA-256: 834d24f492afbfa6489e9e0b498b66eae4061294023a011e91b2b3d46f4db41e
font_01_sfnt_off000060d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D5 19572 bytes
SHA-256: 6c9ba111aec8801560bf85fcacd4c5c39d3f03046723a895b97af292900cac8f

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