Malicious PDF — malware analysis report

Static analysis result for SHA-256 c62e1f14d021881c…

MALICIOUS

PDF

34.6 KB Created: 2021-06-22 05:33:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 300542bf223718b78baa6bc7bf082bb0 SHA-1: 7673a572a4419602d221ee848dd5097c6ca6ede8 SHA-256: c62e1f14d021881ccaf4a1e3effe4a62aec0e20c185715e0e8f2eaabe6388885
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs that redirect to a site offering 'game hacks' and 'free generators', a common lure for malicious content. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the presence of these lures and the high ML score indicate a likely attempt to trick the user into downloading or navigating to a malicious resource.

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/406889139/static-moonactive-game-hack PDF link annotation
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/mcpe_GM479516143.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/www-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-robux-images_GM431946152.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.mis-arrahmahuk.sch.id/__statics/gudangsoal/files/free-robux-now_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_off000031ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31EE 22964 bytes
SHA-256: 961bf22099b0901611f865478a6f59296336dbe4f33e99f94014dfac2f36a0da
font_01_sfnt_off000065a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A1 17948 bytes
SHA-256: d942d3997741433eac321740d06464204a1c132eec26b7d4f5b5c0c9669a93de

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