Malicious PDF — malware analysis report

Static analysis result for SHA-256 34d3091f679b02fa…

MALICIOUS

PDF

35.6 KB Created: 2021-05-22 11:36:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf83e52539d120aeb545b894b6df4277 SHA-1: 2a3b87597d7707a9c1a00def2d1df6c2a685ebfe SHA-256: 34d3091f679b02fa5716e0289670b436fb6c80f4a6e4e66ddfa40eab8ae505af
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free generator / game hack' to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts multiple other links pointing to potentially malicious PDF files. The document body contains obfuscated text and multiple URLs, indicating a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/835599320/free-tiktok-followers-no-human-verification-game-hack In PDF document text
    • http://armportal.co.uk/images/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://armportal.co.uk/images/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://armportal.co.uk/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://armportal.co.uk/images/coin-master-free-spins-only_GM406889139.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
stream_002_off000033e9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33E9 23704 bytes
SHA-256: 32628515c7b7d3f76a813b48e9bdfba3b24c4d4ebf91faa5dcd4fa6724ea7af1
font_01_sfnt_off0000696e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x696E 18456 bytes
SHA-256: 6fa1441c1a321216f6114c799401e851ec7285796cff0c56691a74954fdf2722

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