Malicious PDF — malware analysis report

Static analysis result for SHA-256 418fac8255f87932…

MALICIOUS

PDF

45.4 KB Created: 2021-05-19 07:51:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c2b3c4e35152caea560b143c8d509488 SHA-1: 2d80f4c05b411927d65d5523efca3d81d5bac092 SHA-256: 418fac8255f879329dc53ac2da75a0eee19ba735465a3d49d3633a837fc683c7
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF gateways for game hacks and cheats. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs and a link farm suggests an attempt to redirect users to malicious content or download sites. The document body, though partially corrupted, contains references to 'tiktok-free-view-like-video-game-hack' and game-related terms, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/835599320/tiktok-free-view-like-video-game-hack
    • http://bertaluzorganiccosmetics.com/images/easy-coin-master-hack-without-verification_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/coin-master-hack-xyz-download_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/roblox-bux-free_GM431946152.pdf
    • http://bertaluzorganiccosmetics.com/images/free-spins-and-coins-on-coin-master_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/i-want-to-grow-my-account-tiktok-free_GM835599320.pdf
    • http://bertaluzorganiccosmetics.com/images/coin-master-20-free-spins-link-2021_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/minecraft-hacked-client-download_GM479516143.pdf
    • http://bertaluzorganiccosmetics.com/images/minecraft-mods-download-free_GM479516143.pdf
    • http://bertaluzorganiccosmetics.com/images/coin-master-free-spins-hack-iphone_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/i-cant-get-free-spins-coin-master_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/daily-free-spins-coin-master-heaven_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://bertaluzorganiccosmetics.com/images/coin-master-daily-free-spins-hack_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/roblox-free-body_GM431946152.pdf
    • http://bertaluzorganiccosmetics.com/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdf
    • http://bertaluzorganiccosmetics.com/images/easy-robux-generator_GM431946152.pdf
    • http://bertaluzorganiccosmetics.com/images/coin-master-hack-pro-gamers_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/coin-master-free-stuff_GM406889139.pdf
    • http://bertaluzorganiccosmetics.com/images/coin-master-daily-free-link_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004602.bin
8947737d066457c6e7a25162836b1a847f2552f4756eb976be5f90a817765612		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4602 28908 bytes
font_01_sfnt_off000085f9.bin
02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85F9 2912 bytes
font_02_sfnt_off00008ff5.bin
e597d24e5a41a4fe474e219e212600c01ea77a953e8bb23161974cf4e13c2f17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF5 17928 bytes

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