Malicious PDF — malware analysis report

Static analysis result for SHA-256 340485f0a9cc8c94…

MALICIOUS

PDF

36.6 KB Created: 2021-05-24 09:35:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 73260ea99d8f837a68a0710d0bb99051 SHA-1: 48ed9be781aafa315978fb4cbe12bc0325d195bc SHA-256: 340485f0a9cc8c94cfe68bfb6518fdf874b8c78333ae361b79761466d5102224
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/rbx-free-robux-game-hack PDF link annotation
    • http://inextpresident.com/images/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/free-spins-coin-master-hack-2021_GM406889139.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_off00003478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3478 25264 bytes
SHA-256: 1398f2dcc112346d099fba7ae5700880215e76394162d393cae6c757aad930ea
font_01_sfnt_off00006ebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBE 18012 bytes
SHA-256: 03f7603bc8a5695bbd0c39958af3fcfd5a932cbc13eba7563a8e8ca8b5ca4208

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