Malicious PDF — malware analysis report

Static analysis result for SHA-256 26d168d73761d059…

MALICIOUS

PDF

29.1 KB Created: 2021-07-20 23:51:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1b360947e862db6773bd7cbe6c03f79c SHA-1: 3502b1267c711dbf74bc9f3a3131747c99e921ae SHA-256: 26d168d73761d059c6989aaa99f3159521796344075934857ad9437e73e1b88f
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a redirector URL, which is identified as malicious. The document body explicitly mentions 'Roblox Jailbreak Hack' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', indicating a lure for users seeking in-game advantages. The presence of embedded URLs and a call-to-action button further supports the phishing and redirection attack pattern.

Machine Learning

  • Nyx PDF Classifier clean score 0.0570

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.tw/app/431946152/roblox-jailbreak-hack-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001e2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E2E 22156 bytes
SHA-256: d96f674b2f7ce8ea0b0425f9cddc4eb35803c28662258d47ee19ee81100457ae
font_01_sfnt_off00004f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F21 18652 bytes
SHA-256: 238776d81d7079e64501f357c145a468ea3a1220ca00fff69d40e8c1a53c01cc

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