Malicious PDF — malware analysis report

Static analysis result for SHA-256 c05177b29e86e7a5…

MALICIOUS

PDF

34.5 KB Created: 2021-06-28 02:55:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: dc2f1228003710c5d7e8eb88d74031c9 SHA-1: 5575ae4c3fd1fc30a7eb8043e1b5c5e9aa728252 SHA-256: c05177b29e86e7a540c849251b51403a3c95a5c0e08abf5e7c00b8d7e0b1c775
102 Risk Score

Malware Insights

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

This PDF file was identified as malicious by an ML classifier and contains a large number of external links, many of which are related to game hacking and exploits. The document body, though partially corrupted, also contains URLs pointing to potential malware downloads. The presence of a "download button" heuristic further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-script-changer-hack-game-hack PDF link annotation
    • http://perpus.i2s-learning.com//repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-800-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-hack-any-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-money-in-roblox-rocitizens_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/robux-hack-for-android-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-exploits-website_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-hack-on-roblox-tea-cup-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-roblox-on-ps4-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-captain-america-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-hack-exploit-jailbreak_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/como-recuperar-tu-cuenta-hackeada-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-dnl-injector_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hack-my-game-xyz-coin-master_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E86 22692 bytes
SHA-256: 3c61db4b7cabc5403eec7fde2cebd5fe49cd3cd28f55930b6c946f1d5ceca238
font_01_sfnt_off00006171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6171 19224 bytes
SHA-256: 3d33754686176782a4af2cdf4e4589bc58e0b92f7d7f0cc621e890693281940e

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