Malicious PDF — malware analysis report

Static analysis result for SHA-256 70d771666098b149…

MALICIOUS

PDF

35.6 KB Created: 2021-07-01 19:18:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b709c001869c1521b3d8126147228ec6 SHA-1: 4fabbe8e151644a7b3b01eeafacdda50ab3ee6a7 SHA-256: 70d771666098b149945eed39397decf7471bec3d251b5b0db77dc7ef77b05643
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/hack-for-champion-simulator-roblox-pastebin-game-hack PDF link annotation
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/robux-online-hack-ml_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-bypassed-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/was-ist-robux-for-free_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-chromebook-hacks_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-account-top-9-ways_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-333-weebly-com_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-cheat-engine-health-hack_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-gamepasses-2021_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/hacked-robux-oh-shit-meme_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-cheat-in-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-speed-hack-2021-cheat-engine_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-hacking-system_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-rs-free_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-hack-999999-robux-2021_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/cheat-manager-free-robux_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-install-roblox-hacks-booga-booga_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-free-paint_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_off00003240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3240 22420 bytes
SHA-256: 324b106f9f5f71f34cb143e17ce7a97a4bc30ce7d927822b69580f246a4166d7
font_01_sfnt_off000063c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C3 19940 bytes
SHA-256: bd1244444a80f8ee3a18652deda17cfc9c8b8861c7dc1b72664cefd3743f70cf

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