Malicious PDF — malware analysis report

Static analysis result for SHA-256 d32f11c2f0bed3c4…

MALICIOUS

PDF

42.0 KB Created: 2021-05-19 16:10:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 279e359a5130dfa245d7e8da6674a1fe SHA-1: c40db4173e4adaf73729f302c369a231f71e3a88 SHA-256: d32f11c2f0bed3c434d023fff622881e2431a4e13038d9c74962a83350924282
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for 'Robux Free 2021' and directs users to a suspicious URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful content, likely exploiting a client execution vulnerability.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/robux-free-2021-game-hack PDF link annotation
    • http://zagi.hr/files/roblox-printables-free_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/robux-free-c_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • https://www.zagi.hr/files/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-hacks-for-android_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-hack-app-2021-download_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/wurst-commands_GM479516143.pdfIn PDF document text
    • https://www.zagi.hr/files/mistplay-robux_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/generator-robux_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004912.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4912 24588 bytes
SHA-256: 3d48b1fecbec0cb78361ad81cb078be4a75cb97063e5be7fc8f649ccbb25cccc
font_01_sfnt_off0000813a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x813A 18416 bytes
SHA-256: 1a644f5289783458eb76ac5741ebd0afe9ba6d8f40911ca8ddb4573f3c6c1b2f

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