Malicious PDF — malware analysis report

Static analysis result for SHA-256 7771d62f17b08e82…

MALICIOUS

PDF

36.3 KB Created: 2021-05-22 08:43:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 347f800b457ae7a6810ae47e68ecd7fe SHA-1: 38d0a0d1e899ddd44d627ecbff79bb3660e96a09 SHA-256: 7771d62f17b08e8258097deb27a38cef2aa9b88ea2a52233ecd56386a383f2ba
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs that lead to known malicious redirectors and sites offering 'free generators' or 'hacks' for popular games, indicating a lure for users to click through. The document body explicitly mentions 'Robux Hack' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the social engineering aspect. While no scripts were directly extracted, the PDF structure and heuristic firings strongly suggest it's designed to redirect users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/robux-hack-game-hack In PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/easy-points-gg_GM431946152.pdfIn PDF document text
    • https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-minecraft-account-and-password-2021_GM479516143.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_off000033a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33A1 24816 bytes
SHA-256: be53a6fa2ab4c1b978bf036a0a27b3aeab1e2a15df29cc1f1770e92a25207d97
font_01_sfnt_off00006c76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C76 18248 bytes
SHA-256: dc70545b78036d2d989a53e60713ee6b6ba72604799932bb5b2fc13357d7a02a

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