Malicious PDF — malware analysis report

Static analysis result for SHA-256 713debe4f469743a…

MALICIOUS

PDF

41.2 KB Created: 2021-05-13 12:13:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2a2104ae833492a125b71754452045ea SHA-1: a0d63523d1c7e4c0202b6f5b1fbe1ab3bd22ec73 SHA-256: 713debe4f469743ad765ef4910c34745738c850353d884e5ae9266dae7e9f529
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various game-related cheat and hack sites. The ML classifier also flagged this PDF as malicious. The presence of a "download button" lure further supports a malicious intent to redirect users to potentially harmful external resources.

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/coin-master-free-coins-cheat-game-hack
    • http://geemarco.com/images/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdf
    • http://geemarco.com/images/minecraft-free-download-iphone_GM479516143.pdf
    • http://geemarco.com/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdf
    • http://geemarco.com/images/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdf
    • http://geemarco.com/images/coin-master-free-soins_GM406889139.pdf
    • http://geemarco.com/images/how-to-hack-someone-on-roblox_GM431946152.pdf
    • http://geemarco.com/images/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdf
    • http://geemarco.com/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdf
    • http://geemarco.com/images/minecraft-free-play-no-download_GM479516143.pdf
    • http://geemarco.com/images/free-coin-master-stuff_GM406889139.pdf
    • http://geemarco.com/images/minecraft-free-download-ios_GM479516143.pdf
    • http://geemarco.com/images/hack-coins-in-coin-master_GM406889139.pdf
    • http://geemarco.com/images/bad-minecraft-free_GM479516143.pdf
    • http://geemarco.com/images/how-to-get-minecraft-for-free-ios_GM479516143.pdf
    • http://geemarco.com/images/codes-how-to-get-free-robux_GM431946152.pdf
    • http://geemarco.com/images/roblox-hack-download-pc_GM431946152.pdf
    • http://geemarco.com/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdf
    • http://geemarco.com/images/robux-gainer_GM431946152.pdf
    • http://geemarco.com/images/coin-master-free-spins-that-really_GM406889139.pdf
    • http://geemarco.com/images/i-need-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004755.bin
90d593c535bb618b1f2c2b1a0910ea3ace67a73b79adf4d3c2bae4e2d07570f8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4755 24860 bytes
font_01_sfnt_off00007ff7.bin
8d554e61e60aeb014de25df31c65578cfce6635275d7afef547caae0d045a026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF7 17876 bytes

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