Malicious PDF — malware analysis report

Static analysis result for SHA-256 013436915e46e072…

MALICIOUS

PDF

27.1 KB Created: 2021-06-26 16:21:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 3498b9ecd7f658024f816fe78abcd30c SHA-1: 3100ec2ec6e7c79cd704b84542fbf42652954c5a SHA-256: 013436915e46e07265a51189d06b61a5978aca277f90f68c01d70a65a0a436c5
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a game hack redirect lure, pointing to a known malicious URL. The document body also contains the same URL and a call-to-action phrase, reinforcing the lure. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0327

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.co/app/431946152/free-roblox-adopt-me-bucks-cheat-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 1

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_off000015bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15BD 21196 bytes
SHA-256: f8a1107a741640286452b3bd9e06f4e2d4d02de458bf480130c0ee3b306d0a92
font_01_sfnt_off0000443f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x443F 19776 bytes
SHA-256: 51e53b5f70e8b4190f173e6c413173df76c98f3de51b6a7133c7b4a5d96703aa

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