Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ef6082b86b0ce1f…

MALICIOUS

PDF

42.1 KB Created: 2021-05-14 01:00:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fa3825eb00ceb21fa3c7ebf338d94abd SHA-1: c49d28d506e6a34078e4382ead59b61e85778a79 SHA-256: 9ef6082b86b0ce1f80d9efb77e0303884842cb637b2ffb21be404b4a939d0ac0
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/479516143/how-to-get-minecraft-for-free-on-pc-game-hack PDF link annotation
    • https://7gking.tw/upload/files/free-robux-only-username_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-deals_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-unlimited-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-coins-for-coin-master_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
font_00_sfnt_off00004c4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C4C 24272 bytes
SHA-256: 602f36bd7d20c483dba4e77deeae41a5d0e9b621c0f4ed469ad46b7103bff5c6
font_01_sfnt_off0000831e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x831E 18028 bytes
SHA-256: b9422edf84f92072c73e95211b34a92c0a0e69f845a714fee2d613fe1b4264b0

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