Malicious PDF — malware analysis report

Static analysis result for SHA-256 106104d9d0e395fe…

MALICIOUS

PDF

36.5 KB Created: 2021-05-21 21:20:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 5ca3e72084785980d31f84b9c666f304 SHA-1: 9e430e018df30b3ab486e9091e6a66dde83afe44 SHA-256: 106104d9d0e395fe5ee17e0144d4784a3cab37f9c0213ed4435c1b98212ec9f9
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links that redirect to known malicious infrastructure, specifically advertising a 'free generator / game hack'. The document body also contains a prominent call-to-action phrase, 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. While no scripts were directly extracted, the PDF structure and heuristic firings strongly suggest a phishing or social engineering attack aimed at redirecting users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier clean score 0.0076

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/479516143/minecraft-font-free-game-hack In PDF document text
    • https://sigmaclient.info#2In PDF document text
    • https://flux.today#3In 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_off00002e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2D 24208 bytes
SHA-256: 168dddf8221da9a681a251496b536f290890ed0252ef0d2580f27fee2584b4af
font_01_sfnt_off00006589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6589 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00006f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3A 17712 bytes
SHA-256: 48684535abb05df1a4efb13fd94135dee175bf6b61229e4eaa41ff3ed13e5a52

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