Malicious PDF — malware analysis report

Static analysis result for SHA-256 56567970bb88c34d…

MALICIOUS

PDF

39.8 KB Created: 2021-05-23 06:07:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: bd8eb0160b83825ee57968ee080b52d0 SHA-1: 6bc753460d92c30c66027cd711dd1f7931bf2e6d SHA-256: 56567970bb88c34de992c490f9692bf80593304c8c519d89471e359ec39fe707
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including one identified as a malicious redirector. The document body and heuristics indicate a lure for game hacks or generators, aiming to redirect users to potentially harmful content. No scripts were extracted, but the presence of embedded URLs and the nature of the lure suggest a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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-without-verifying-game-hack In PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-minecraft-website_GM479516143.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_002_off00003814.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3814 26924 bytes
SHA-256: 8cbbe235583848abe3b7bc9a50a8164a7053117e5cf756a9066d2c0199f36f52
font_01_sfnt_off00007705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7705 19368 bytes
SHA-256: 63de63cfc252acdf530e8b3b2390dbc20d855d9653817057ed506b48c41b68ab

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