Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcd6edbc27352ac0…

MALICIOUS

PDF

42.8 KB Created: 2021-05-17 04:36:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 9981f919100bc14fb56730cd6d2a7a86 SHA-1: f70d042b40827b40ce7bc2cb6fdc2d4c565c87db SHA-256: bcd6edbc27352ac0a5fa3c4ca1feeb05e6de4a816856cff7554f0d57bf543754
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links pointing to a known malicious redirector, which is a strong indicator of malicious intent. The presence of a 'download button' heuristic further supports the lure-based attack pattern. The document body, though heavily obfuscated, contains references to 'Coin Master Hack Apk' and URLs that appear to be related to game cheats, suggesting a social engineering tactic to trick users into downloading malware.

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-3.2-hack-apk-game-hack In PDF document text
    • http://www.friendshiptransport.net/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/500-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/krnl-download_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/roblox-hack-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_off0000493e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x493E 25920 bytes
SHA-256: d3cacf6cb132bd861107ee35f8ac5a95d3d89a9ef1a2919bfc1aea04a8fac5f4
font_01_sfnt_off00008525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8525 18256 bytes
SHA-256: f76fe5021fb1b68ba348fdc14abba29e58efdbffac8c556b15bcd17928341cf7

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