Malicious PDF — malware analysis report

Static analysis result for SHA-256 b87b574c0d92a624…

MALICIOUS

PDF

42.0 KB Created: 2021-05-24 18:30:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b48fa8215294aafdf9dce154711481df SHA-1: acd18828677f3fc395f7caf329c2265193bf3f1e SHA-256: b87b574c0d92a624c5d17b66ff9c0d465d1f53aa9dd7460c3f4938699c36e074
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded links and a call-to-action phrase, 'CLICK HERE TO ACCESS ROBLOX GENERATOR', which is a common lure for phishing or malware distribution. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that the primary URL leads to known malicious infrastructure. The ML classifier also flagged the document as malicious. No scripts were extracted, but the document structure and embedded URLs suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7527

Heuristics 3

  • 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/funblox.xyz-free-robux-game-hack In PDF document text
    • http://pescatun.es/images/coin-master-free-spins-apple_GM406889139.pdfIn PDF document text
    • http://pescatun.es/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://pescatun.es/images/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://pescatun.es/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://pescatun.es/images/pokemon-go-free-619_GM1094591345.pdfIn 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
font_00_sfnt_off00002f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2A 30744 bytes
SHA-256: c712d047950c8356d938976fd6a83730ce55870e291cff748bbff51842b174df
font_01_sfnt_off0000753f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753F 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00008250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8250 18416 bytes
SHA-256: 094e3ad3acb05c69538296255af77c281e929786c4e47907665e7e86d1bfa11c

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