Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b05a0506729b78…

MALICIOUS

PDF

37.6 KB Created: 2021-05-15 15:31:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a28aee1997b069f477e81efe6a7f08c2 SHA-1: 0bab98e006aaff3ef290ba1dc900ab44a360cabf SHA-256: 50b05a0506729b785df39cc3c48c0195887ad26ee5580c4aa508121faf909d3d
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure for a 'Roblox Gang game hack' and directs users to a malicious URL. This URL is flagged as a known malicious redirector, indicating a high likelihood of leading to malware or a phishing attempt. The embedded content, though partially obfuscated, reinforces the malicious intent by including the malicious URL and call-to-action phrases.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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-gang-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00003106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3106 28712 bytes
SHA-256: ef8e08813461830dabd47a93edac98bbe475f0dd1e939aa7d7839c3b4e7bbaba
font_01_sfnt_off00007154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7154 18300 bytes
SHA-256: 91f666fe4564d776efc04868df6c7de748ea3d878c0f7be790052d713bbb3004

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