Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e7a7f6c521c0e76…

MALICIOUS

PDF

50.2 KB Created: 2021-05-17 16:32:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: cb792d213fb7ece3ca4318050b536814 SHA-1: 8a84ffb8eedc076e291f1d86779c3a5bc764d9a9 SHA-256: 7e7a7f6c521c0e7631e6f65e4a1c053121b4bd80363a86cd516e92b87bca47fd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links disguised as game hacks and cheats, specifically targeting Roblox and Coin Master. The primary link, 'https://netcdn.xyz/app/431946152/roblox-hacks-2021-game-hack', is flagged as a high-risk lure. The document's structure and embedded URLs suggest it is designed to trick users into downloading potentially malicious files disguised as game enhancements.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9117

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-hacks-2021-game-hack PDF link annotation
    • http://www.hotel-seminaire.com/images/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/coin-master-coins_GM406889139.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.hotel-seminaire.com/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ba1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BA1 25696 bytes
SHA-256: 1af6b7805810a113f8ce75bdb458f915b38868d847376edc732be34c383fcde6
font_01_sfnt_off000086f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F9 3964 bytes
SHA-256: f6b9a386ee4e0aff622a98b2230905da71eab0ca98398cb52018fda3528d3e2a
font_02_sfnt_off00009457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9457 3396 bytes
SHA-256: e59bc53cd4c0ee65dc1533becad2866f345dcb060e6c68bb8187d21cb9f973ee
font_03_sfnt_off0000a04a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA04A 18584 bytes
SHA-256: 09e382df304bf090e7d4979f9a4a25aa7e11969d647bdc760e706e621b680adc

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