Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dfdf18d719bda94…

MALICIOUS

PDF

28.0 KB Created: 2021-06-28 18:21:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a52e61b39d3ebe801dbd7286b503592b SHA-1: e306fea3ee48b60b691fb2b3e4888ec4c52eb840 SHA-256: 0dfdf18d719bda9487aa7d38d2fc08be66ca6687b533f935cdbedfefb57f97d7
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a URL associated with malicious redirector infrastructure. The document body text also contains a prominent call to action for a 'Robux Generator' and the malicious URL, reinforcing the phishing pretext. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0330

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 http://netcdn.co/app/431946152/free-roblox-gift-cards-2021-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_off00001695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1695 22484 bytes
SHA-256: 1aaae98f7af312d7890b8c90db6f4367067f96c350bcc735d21e3e016839230a
font_01_sfnt_off0000488c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x488C 19452 bytes
SHA-256: 8115ccb621edd4612311f62a2018219b20574293e23f0c1b138e5e1805582403

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