Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0a9b02c937c15cb…

MALICIOUS

PDF

41.2 KB Created: 2021-05-11 22:20:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 4fd0bf1059fe863db32e09667d49fe11 SHA-1: 85c498597e2a827872f0bdd1e75e677de0fcc3b1 SHA-256: d0a9b02c937c15cb86dd3e151b73eadac02b7041ccbce41a44ca8a3e3db30a4d
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and a visual download button, strongly suggesting a lure to download malicious content. The primary link, https://netcdn.xyz/app/406889139/coin-master-apk-hack-3.2-game-hack, is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links indicate an attempt to trick the user into downloading further malware, likely related to game cheats or hacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-apk-hack-3.2-game-hack In PDF document text
    • https://reggieslockandkey.com/images/free-executor-roblox_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/demon-roblox_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/roblox-website-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.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_off0000472b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x472B 24308 bytes
SHA-256: 304ae8fd7f105522638e4ff86f9ee6b89c609a3b6f7068866ddb67ee6713d80a
font_01_sfnt_off00007eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAF 18256 bytes
SHA-256: ea1725c6c01ea87f710175a69d8af0aa870f8ca7c85f9b36b7cf8826adfef3f7

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