Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b96ac9c70ca276…

MALICIOUS

PDF

44.4 KB Created: 2021-05-15 07:22:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: eb928efaae3f8d392bdf0b204097c22a SHA-1: 44dd63d2c7372711507dc7e9bc983fcad752b174 SHA-256: 06b96ac9c70ca276e9c3c263c6e419220534891caf2e550ecf44049f07c6a07c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a malicious redirector, specifically advertising a 'game hack' or 'generator' lure. The primary malicious URL identified is https://netcdn.xyz/app/406889139/hackear-coin-master-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a social engineering attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/hackear-coin-master-2021-game-hack In PDF document text
    • https://www.gymun.cz/images/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://www.gymun.cz/images/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/get-gold-coin-master-village-hack_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/free-robux-real_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004815.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4815 25220 bytes
SHA-256: 912c8c840903c5c9dfddc195c349becb850871bd8be8be1a28da9e30392308c7
font_01_sfnt_off00008141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8141 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00008b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B27 18116 bytes
SHA-256: 835205c12f27628b43a9501073f928ecba08a070d1a79211f3098410d295e285

Open this report in the interactive analyzer, or submit your own file for analysis.