Malicious PDF — malware analysis report

Static analysis result for SHA-256 5200b4c67b773267…

MALICIOUS

PDF

37.7 KB Created: 2021-05-21 02:18:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a4fe2ec4c2c97952f855d376a7fec22b SHA-1: ccaeee0f3348ebaa3d602cbdc800ae4db9871dd6 SHA-256: 5200b4c67b7732670f48537dcd1ab0d2716bce330059c9ba18a4db846af8f6e9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action button, explicitly luring users with the promise of 'free Robux' or 'game hacks'. The primary link directs to a URL associated with a 'roblox-land-free-robux-game-hack', indicating a phishing or scam attempt. While no scripts were extracted, the PDF structure and embedded URLs suggest a social engineering tactic 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/roblox-land-free-robux-game-hack PDF link annotation
    • http://regnataudio.com/images/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://regnataudio.com/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://regnataudio.com/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://regnataudio.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://regnataudio.com/images/minecraft-name-tag-hacks_GM479516143.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
stream_002_off00003454.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3454 28104 bytes
SHA-256: 420705e8b05a9ea9a8feb177b6bd62dcade6822e1149d197a62355de96969d71
font_01_sfnt_off0000717c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x717C 18492 bytes
SHA-256: dd1922fe1cc281356c7e312f91778e191ebdc244bf13f8823862483f595251c7

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