Malicious PDF — malware analysis report

Static analysis result for SHA-256 8449e46083cb4ad9…

MALICIOUS

PDF

35.1 KB Created: 2021-06-28 23:07:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a26ce00b4f5a2cff2f4f6a244472ac75 SHA-1: c40d509f4df0a6ac25863bf0fd574a987a82a4d2 SHA-256: 8449e46083cb4ad9d3b9718a40a031ff310276310174c27a7f4e9e2cb6f75c3f
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/how-do-you-get-free-robux-2021-july-game-hack PDF link annotation
    • http://www.mostraining.co.za/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/roblox-hack-robux-free-deutsch-download_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/star-wars-tycoon-in-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.mostraining.co.za/images/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/good-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-to-get-into-bloxburg-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/online-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-to-get-free-robux-no-scams-2021_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/robux-hack-apk-2021_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-roblox-hacks-like-jjsploits_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/hack-amievenalive-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/google-roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://www.mostraining.co.za/images/redline-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/t-shirt-in-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/minecraft-116-free-download_GM479516143.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_off00002f02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F02 22292 bytes
SHA-256: 607a430a05be3f9d5be5b61915fba5db5d66a375ffbb6bcf3ae47c0b9ad695af
font_01_sfnt_off00006094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6094 20136 bytes
SHA-256: d53b3331237f4f3895ede072e7621b1053950cc6a9d0a134eb6fcdff51cbc6d1

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