Malicious PDF — malware analysis report

Static analysis result for SHA-256 243f964bdc2bb495…

MALICIOUS

PDF

33.4 KB Created: 2021-07-03 12:22:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: abc084b687c1793a4bc11468804d5c9d SHA-1: cdf1e3cc7d8d9b48000018e31aa8fa2b5a106c45 SHA-256: 243f964bdc2bb4951ced98d3bb2b59ad40f7b03da0915a4a2fa67731a6148267
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.tw/app/479516143/hacks-minecraft-game-hack PDF link annotation
    • http://sdn4-wates.sch.id/akasia/repository/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/irobux-fun-roblox-online-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-crosshair-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/easy-to-use-free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-jump-hacks-in-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-jailbreak-hack-injector_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/descargar-impact-hack-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-robux-2021-method_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-o-get-free-robux-new_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-hacks-on-roblox-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-the-roblox-developer-console_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-robux-on-roblox-in-2021-pyckel_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/cheat-codes-for-roblox-skywars-how-do-u-get-costumes_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-robux-all-devices_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-coin-and-spin-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_off00003157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3157 21600 bytes
SHA-256: 5dc6d3cd0d968e8988c7bbd0c4fb47f7aee276f57b0471f78296c09d420a10df
font_01_sfnt_off000060d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D1 18024 bytes
SHA-256: a542bb80f6743a435cc01bd2774b3690020f3f79aba497daee1fa0f418e1828b

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