Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b6c628602f9bc50…

MALICIOUS

PDF

36.4 KB Created: 2021-05-25 07:32:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 551a1c40110d7614a9294c77f8320a4c SHA-1: f2f28e2851f40fe900c1ed2779390ceb1e487cae SHA-256: 5b6c628602f9bc501a739603f6ae52903510117e75b60dad57e61e96b645c32e
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple embedded links that redirect to a known malicious domain, identified as a lure for game hacks. The document body also contains text and a call-to-action phrase related to accessing a Roblox generator. This indicates a phishing or scam attempt designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

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/robux-free-2021-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002ea7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EA7 26980 bytes
SHA-256: 9dce27b775155d286056eab30cd08bb6945ed33498ab84be75b79b5f5836434a
font_01_sfnt_off00006cb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB5 18416 bytes
SHA-256: 1a644f5289783458eb76ac5741ebd0afe9ba6d8f40911ca8ddb4573f3c6c1b2f

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