Malicious PDF — malware analysis report

Static analysis result for SHA-256 93a3a2868ade0732…

MALICIOUS

PDF

36.4 KB Created: 2021-05-20 21:10:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e178d2b58fe65ebf62b2b1e3f706f302 SHA-1: aaf46060b83fcf4a72ee34f87e72fb801af07367 SHA-256: 93a3a2868ade073216aa81a809dad1b9736038ad69f4264ec23246189c4254ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with a primary link to 'netcdn.xyz' flagged as a malicious redirector and associated with game hacks. The document body also contains a call-to-action phrase, 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the lure. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to lead users to malicious websites, potentially for phishing or malware distribution.

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/431946152/free-girl-hair-roblox-game-hack In PDF document text
    • http://www.viniperfetti.com/images/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.viniperfetti.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.viniperfetti.com/images/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://www.viniperfetti.com/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.viniperfetti.com/images/robux-com-roblox_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000323d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x323D 25852 bytes
SHA-256: 61e5809c87001fb099280f63f785bef0f5a5a99802639786066b1e2fe4375709
font_01_sfnt_off00006cd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD0 18296 bytes
SHA-256: 8b4c4b2b466665ac93a944d4fc06515a87c4aea34a1519436c139db9e2468eb4

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