Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa659f555775a1dd…

MALICIOUS

PDF

44.1 KB Created: 2021-05-18 02:42:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: cae0edefa83e4ba23fab97bc6181677c SHA-1: 0ab476709faca5f0b82b677bfdd62d64b0e93b11 SHA-256: aa659f555775a1dd11b304fe2767ed2f21ef9e73ada6b167b03ba855448659e2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting "game hacks" and "generators". The primary lure appears to be a "Coin Master Pro Hack" leading to the URL https://netcdn.xyz/app/406889139/coin-master-pro-hack-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector designed to lead users to potentially harmful content or further exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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/coin-master-pro-hack-game-hack In PDF document text
    • http://www.les2alpes-location.com/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/robux-cheat_GM431946152.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/easy-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/free-robux-group_GM431946152.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004aa8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AA8 28456 bytes
SHA-256: 12254dcb470437c69d56f31e46346abae6140fc457aee9596d7394838ee4699a
font_01_sfnt_off00008b65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B65 17868 bytes
SHA-256: 6fc94cfc5e353177abc481ae17561ea3edb8d825f50582b916d0cbb0f569bfa7

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