Malicious PDF — malware analysis report

Static analysis result for SHA-256 258ea9fc60d7990e…

MALICIOUS

PDF

43.5 KB Created: 2021-05-17 14:14:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0682ed39b83659ced3e0d42b0c8fe3e2 SHA-1: e94d36ffb1f696d4b2d0d86e6cfc0cc92173344b SHA-256: 258ea9fc60d7990ea2d8170444374e5e11616125b887dc46883e846f24899577
102 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many of which point to other PDF files hosted on suspicious domains. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting a deliberate attempt to create a link farm for SEO manipulation or to distribute malicious content. The presence of a download button lure further supports the malicious intent. The primary URL, https://netcdn.xyz/app/406889139/daily-coin-master-free-spin-apk-game-hack, likely serves as a gateway to a malicious application download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/daily-coin-master-free-spin-apk-game-hack PDF link annotation
    • http://www.alrashed-alsaleh.com/userfiles/files/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/free-daily-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-free-robux_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_off00004e08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E08 25604 bytes
SHA-256: 95d77b5be7c547fb6c494d6b53d0abda5c5347368cb9227d8cf916ed6aef6777
font_01_sfnt_off00008710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8710 18476 bytes
SHA-256: f742b896080f556428e397b41111c37328508f14d40aa043f47df4a758656a88

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