Malicious PDF — malware analysis report

Static analysis result for SHA-256 26003a470700c5c1…

MALICIOUS

PDF

38.6 KB Created: 2021-05-13 19:58:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: c52d977c0e1288fa7733240443dd8f42 SHA-1: 306bcfb10c54e49ea2ffff75c81d7d52acc4d188 SHA-256: 26003a470700c5c13ad2bfcb17c18de26b01104c9cc054b9956a6885ba47f484
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious infrastructure, specifically advertising a 'Roblox Gift Card Online Free Game Hack'. The document body also contains similar lures and the malicious URL. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt designed to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/roblox-gift-card-online-free-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00003183.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3183 24868 bytes
SHA-256: 461c75508c7f72698cbd7f85cc59fef35a28fe0b43dba25921c6b54876a7828d
font_01_sfnt_off00006aab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAB 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off0000745c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745C 18572 bytes
SHA-256: df9893eb1f0d0b90ef1012123e626362df07f41b7e954edba7018aa352f9b9fa

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