Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7485b7d4dbb1f5…

MALICIOUS

PDF

47.6 KB Created: 2021-05-17 09:44:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 73924ae5933d871b90d593d6f9862bf4 SHA-1: 6d32714ffab549e08efb37e8e1154e40a8759d31 SHA-256: ea7485b7d4dbb1f5ff46edc5bb4859aa4e4880707c714e83038a36a80f644b47
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links pointing to known malicious redirector infrastructure, specifically designed to lure users with promises of free Robux. The ML classifier also flagged this document as malicious. The presence of a visual download button further supports the deceptive nature of the document, aiming to trick users into clicking the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 3

  • 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/431946152/robloxhero.xyz-free-robux-game-hack In PDF document text
    • http://jackson-pr.com/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/minecraft-pe_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/offers-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox-controversy_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-daily-bonus_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004935.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4935 31568 bytes
SHA-256: 72e8861fc6b75da408ed028ceef4de411e3e7d7ca3601e44e7a3ba11f7f69df0
font_01_sfnt_off00008d55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D55 2828 bytes
SHA-256: db1860fd79a3f2cbe32e2bada3ba4c68a2d581b7a24294387cd777233cc9cef6
font_02_sfnt_off0000970b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x970B 18584 bytes
SHA-256: d96645d743d7bc7e16305d404e9ae036d13b2ec1544ce4a3e073a2af54c3cd1e

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