Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e20d230d1d237e9…

MALICIOUS

PDF

42.1 KB Created: 2021-05-02 01:19:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 364fa1c48d2157ccf7c1405bd7689cd4 SHA-1: 5927ea046689b2c405d6540632aa17e75c3b7648 SHA-256: 6e20d230d1d237e9d434d6d3dac4cc5b07f3e397abab67dad1f05a6112c98fe1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure related to 'free Robux' and directs users to a URL that appears to be a game hack generator. This is a common tactic for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs suggest a phishing or exploit delivery attempt. No scripts were extracted, but the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/how-do-you-get-free-robux-nisterv-game-hack PDF link annotation
    • http://wattkit.com/images/easy-roblox-today-hack.pdfIn PDF document text
    • http://wattkit.com/images/roblox-treasure-quest-cheat.pdfIn PDF document text
    • http://wattkit.com/images/roblox-animation-free.pdfIn PDF document text
    • http://wattkit.com/images/youtube-roblox-free-robux-without-downloads-legit-2021-urban420-network.pdfIn PDF document text
    • http://wattkit.com/images/free-robloxs-code.pdfIn PDF document text
    • http://wattkit.com/images/roblox-hack-2021-legit-yt.pdfIn PDF document text
    • http://wattkit.com/images/como-hackear-roblox-para-tener-robux-infinitos.pdfIn PDF document text
    • http://wattkit.com/images/how-can-someone-hack-roblox-account-frim-discord.pdfIn PDF document text
    • http://wattkit.com/images/roblox-cheat-engine-the-streets.pdfIn PDF document text
    • http://wattkit.com/images/roblox-free-for-pc-download.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 3

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
stream_003_off00003f78.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3F78 27848 bytes
SHA-256: bb8b41266c432ccd16f9f645c9f213cad260ca40eb15dd9960f64c20f9606d2f
font_01_sfnt_off0000810e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x810E 18844 bytes
SHA-256: 36d3440e227b92b1ad8a101e23cfd8762ff0e33a31537dd10b573d4c147a10c0

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