Malicious PDF — malware analysis report

Static analysis result for SHA-256 a108cb0030b6cc62…

MALICIOUS

PDF

36.7 KB Created: 2021-05-22 11:43:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 31f00bcc1cf0121761b107d5a38cc469 SHA-1: 5f20ec955ca651791901085aa216eb31d20bc644 SHA-256: a108cb0030b6cc624f84ad8c17447b24573bb10ab703c237ac9c1b5c958d1461
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure related to 'free Robux' and game hacks, indicating a phishing or scam attempt. The primary URL, https://netcdn.xyz/app/431946152/how-to-get-robux-for-free-2021-game-hack, is flagged as a redirector for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially malicious content.

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/how-to-get-robux-for-free-2021-game-hack PDF link annotation
    • http://www.ideastreet.it/images/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://www.ideastreet.it/images/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://www.ideastreet.it/images/hack-coin-master-without-human-verification_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_off00003206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3206 25944 bytes
SHA-256: d9a4fa5f33f7afd0db9f51bb0f8d2e73b72f48d4d853c00fba2dfc5df232fc09
font_01_sfnt_off00006ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE6 18684 bytes
SHA-256: 65f445f0396e54760dd2a1edc1744209422bc48f29c35ea74a9bcb72e79f8b06

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