Malicious PDF — malware analysis report

Static analysis result for SHA-256 33c202a0e5fe6186…

MALICIOUS

PDF

44.4 KB Created: 2021-05-16 00:31:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 221d7b2e334820dcc414be97d9a53fc0 SHA-1: ad2075e22fcf9fa407bf51c54c6d93fdc9a3a089 SHA-256: 33c202a0e5fe61865f3036efb84ee0c9bcc400a95a62c608a552a0d51e0aaa44
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that point to known malicious redirector infrastructure. The lures, such as "free Robux" or "game hacks", are designed to trick users into clicking these links. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the presence of malicious links suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-get-free-robux-no-human-verification-2021-game-hack In PDF document text
    • http://www.arredifunebri.com/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://www.arredifunebri.com/images/what-is-a-robux_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/robuxmatch-com-free-robux_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_off000048de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48DE 28756 bytes
SHA-256: e3912666c2e2ed75200655337aafa44b9af4892ba2dbd0bf432f432e1565d262
font_01_sfnt_off000087ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87EA 19428 bytes
SHA-256: dc7c459a90b1a398d2ee51f52972ed8a07904c77cd045887558a99bdb9823e3c

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