Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc6295a4c0d9e3e3…

MALICIOUS

PDF

40.9 KB Created: 2021-05-20 03:42:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3f6a70b5b7f4e9426ced543e01d9bdae SHA-1: 019023f51ec1c641e3f64eeff59d363a6b38934d SHA-256: fc6295a4c0d9e3e3edd634bb1413d911c438bbf6958cb2b90db0b73090f4e9aa
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/hack-coin-master-android-2021-game-hack PDF link annotation
    • http://pourvosvacances.com/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/roblox-download_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/robux-free-c_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/coin-master-official-page_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/coin-master-hacks-for-android_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-roblox-generator_GM431946152.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_off00004537.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4537 24856 bytes
SHA-256: 644f3176e2de47b2ab5e959adcb0a47bb881bb0a6e40a558ecd7332769289c7c
font_01_sfnt_off00007d35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D35 18292 bytes
SHA-256: 9fbd886436b25eb03f566a14fe39b1cb78edee0ed910026e951b6e8040220874

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