Malicious PDF — malware analysis report

Static analysis result for SHA-256 155662c03f0f25d3…

MALICIOUS

PDF

33.9 KB Created: 2021-07-03 19:56:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 694aaf5c9442b5bfc5bf5414cd3d5697 SHA-1: cf83ff6fecad6aa2641bc6035bf899f7ef4dd10d SHA-256: 155662c03f0f25d3f80254754254937649198e8126c80ab5c93a04e857f39376
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering 'free Robux' or game hacks, a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the PDF's structure and embedded URLs align with social engineering tactics to redirect users to potentially harmful content. No scripts were extracted, but the primary attack vector appears to be user interaction with the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/bloxpage-free-robux-game-hack PDF link annotation
    • http://www.raneenmed.com/uploaded_files/userfiles/files/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/roblox-coins-free_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-2021-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/roblox-hacked-for-robux_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/roblox-menu-hack_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/what-is-robux_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-get-free-money-from-roblox_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/steal-anyones-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/free-roblox-codes-june-2021_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-free-spins-link-without-human-verification_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/roblox-robux-hack-xbox-one_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-get-a-free-vip-server-on-roblox-2021_GM431946152.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_off00002f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4C 21916 bytes
SHA-256: 6d001e261afd6e9b52e17abf4db754df06fd6d2de58c40d5d7a6ab731553f9e7
font_01_sfnt_off00005f95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F95 18968 bytes
SHA-256: 1b5123001528eb502e32e1473b5fef90b38f1688b53074051a1ff9b6b67f8f5e

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