Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4bb761060f97e7…

MALICIOUS

PDF

42.0 KB Created: 2021-05-11 08:00:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: a2fd0cc77363aacac52b49f79c2faed7 SHA-1: 2b0c7c54a162812ccc69f88227f052f064ff60b8 SHA-256: fe4bb761060f97e7032f173965e4f76f71e638be181e8a043997345d964d8ff1
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was identified as malicious by an ML classifier and contains a large number of external links, many of which point to game-related hack downloads. The document body, though heavily obfuscated, contains URLs that suggest a lure for game cheats and hacks. The presence of numerous external links indicates an attempt to redirect users to malicious or unwanted content, likely for monetization or further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/android-coin-master-hack-2021-game-hack PDF link annotation
    • http://www.dciprotection.ca/images/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-earn_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-free-spins-link-2021_GM406889139.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_off0000483a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x483A 25088 bytes
SHA-256: 54395c31ddac07218d03d5499b1a36b5124f865d6a2c51e66e05fdbbdb4389ab
font_01_sfnt_off0000819a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x819A 18292 bytes
SHA-256: 53e51a85cf3ba923e8dcb0602fe15926d563ff00ae27db5f75351176e98f629e

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