Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be8139ad0a10099…

MALICIOUS

PDF

35.7 KB Created: 2021-06-28 18:39:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 6b76db6568b77bd73db95b033dbbd6d5 SHA-1: ddbf3c6a9ed9b60a431d1066da1babed7578c2f7 SHA-256: 2be8139ad0a10099e1bcf28e9f6701165ae92f825dca6b32b43cbcd31b587746
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to 'free Robux' and game hacks to entice users. It contains an embedded URI that redirects to a malicious domain, likely serving as a gateway to further malicious content or exploits. The ML classifier strongly indicated maliciousness, and the PDF structure includes links to various 'game hack' related PDFs, reinforcing the social engineering aspect.

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/orocash-free-robux-game-hack PDF link annotation
    • http://smpn1sda.sch.id/slims/repository/earn-robux-sites_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-gift-cards-live_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/can-you-get-free-robux-on-tweakbox_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-hoverboard-roblox-mad-city_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-free-gampasses-in-roblox_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-free-hood_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-skins-murder-mystery-2-roblox-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-obc-roblox-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-free-draw_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-free-dominus-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-the-riding-pass-for-roblox-free_GM431946152.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_off000032cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32CB 23184 bytes
SHA-256: 034f95d4e9804ba8407a3ef340f6ebacab4cee52544f1a888be5809213adb47f
font_01_sfnt_off00006751.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6751 18880 bytes
SHA-256: 7ed776586cbb8247ecef611d13de252e3bdeca27b0d7b08dcae8dd322b038370

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