Malicious PDF — malware analysis report

Static analysis result for SHA-256 48799fc367a81038…

MALICIOUS

PDF

42.2 KB Created: 2021-04-29 19:30:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 00ee24a338c3fdf536425e6049b63e4c SHA-1: 7e46a1e5e602387bf60c1306d6da3dd1e9a8804a SHA-256: 48799fc367a81038efcff02db1d6b99386ed3c91330e279b77a69f8d4d6af6d3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple lures related to 'free Robux' and game hacks, directing users to external URLs. The primary URL identified is https://netcdn.xyz/app/431946152/free-robux-glitch-5-million-robux-october-2021-game-hack, which is likely part of a phishing or malware distribution chain. Although no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest malicious intent via redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/431946152/free-robux-glitch-5-million-robux-october-2021-game-hack PDF link annotation
    • http://www.mcveicolicommerciali.it/images/roblox-hack-engine-download.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/free-robux-kozak.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/how-to-put-cheats-into-big-paintball-on-roblox.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/hack-download-roblox-for-free.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/free-robux-generator-2021-no-human-verification-or-survey.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/robux-hack-script-2021.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/how-to-hack-roblox-to-get-admin-2021.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/50-robux-free-codes.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/speed-hack-roblox-booga-booga.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/roblox-emergency-response-liberty-county-hack-script.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
stream_003_off00004277.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4277 27064 bytes
SHA-256: 4fd361de3bc6627ea984e054b7105232d59a11d905a08dd3bc4da1bf0f82880d
font_01_sfnt_off0000806d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x806D 19212 bytes
SHA-256: aec31859d93ada1bbcaaf3bd1107d9cca1308b70c753add1ae520f3e66d8a5e9

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