Malicious PDF — malware analysis report

Static analysis result for SHA-256 136fde74957489fb…

MALICIOUS

PDF

38.4 KB Created: 2021-05-11 08:32:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bc649351882b20b70131de0128ac1d52 SHA-1: 6117a17e4755ae74d14b171a443e35a81c2e3728 SHA-256: 136fde74957489fb6c98229a4553316b32f20f9f802c29ef335365802dbf79ae
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a URL associated with 'free generator / game hack' lures, indicating a phishing or scam attempt. The document body explicitly mentions 'Bloxland Earn Free Robux' and 'Account Stealing Hack', reinforcing the malicious intent. The presence of these lures and the redirection to a known malicious infrastructure strongly suggests a phishing attack aimed at tricking users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

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/bloxland-earn-free-robux-game-hack In 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_off000035ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35FF 25836 bytes
SHA-256: a9ca31cca845fe730a3171b661a7c3559feb0dacd13c6eb527dfc41f7ca5bf32
font_01_sfnt_off00007207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7207 19172 bytes
SHA-256: 771c6ecbe871a837ab31faba3f2087ed92c6c681b6b887638adaafe1f96e0651

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