Malicious PDF — malware analysis report

Static analysis result for SHA-256 b12687102d188806…

MALICIOUS

PDF

41.5 KB Created: 2021-05-14 16:31:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e21a51a94f956255c9f68004f28d6f64 SHA-1: 5d6ede6b3838fab9ce5fe1d0eb96b5b708ce5ede SHA-256: b12687102d1888062f21194d41de1f85e99f678aae8bdf3adedb8edf091a4c29
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a malicious link disguised as a game hack generator, which is a common lure for phishing attacks. The link redirects to a known malicious infrastructure. Although no scripts were explicitly extracted, the PDF structure and heuristics indicate an attempt to trick the user into navigating to a malicious URL, likely to download further malware.

Machine Learning

  • Nyx PDF Classifier clean score 0.0125

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/websites-that-give-free-robux-game-hack In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00002f81.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F81 29508 bytes
SHA-256: ffe36aca834307f4f0bfbd715f93319920ed961ddf689b0d7ca860eaa7fe99f5
font_01_sfnt_off000071ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AE 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00007ebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBF 18944 bytes
SHA-256: 78a0fcf68a5d31112d03f33f6a87e59a8dd4ec5e5d54fb5213929ff381de215f

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