PDF malware analysis — malicious · 09b47c2a867a24e9

MALICIOUS

PDF

44.8 KB Created: 2021-06-03 10:42:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 2fd5fd887a5520436e9842e5e28533a3 SHA-1: fc4dd1d16c17de9608578b3bb45b6267a02716f2 SHA-256: 09b47c2a867a24e979ea4d2f55a1880c85a0486aba8acee459e51b7baec1ba1f

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are structured as SEO-optimized PDF links, suggesting a link farm. The primary URL points to an application download related to 'free Robux game hack'. This indicates a lure to download potentially unwanted or malicious software. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/apps-to-get-free-robux-game-hack
- http://lib.mbp.ac.id/repository/google-play-coin-master-free-spins_GM406889139.pdf
- http://lib.mbp.ac.id/repository/how-to-hack-minecraft-pe_GM479516143.pdf
- http://lib.mbp.ac.id/repository/free-coin-master-spin-app_GM406889139.pdf
- http://lib.mbp.ac.id/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
- http://lib.mbp.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdf
- http://lib.mbp.ac.id/repository/minecraft-free-games-no-download_GM479516143.pdf
- http://lib.mbp.ac.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdf
- http://lib.mbp.ac.id/repository/wurst-112_GM479516143.pdf
- http://lib.mbp.ac.id/repository/roblox-com-hack_GM431946152.pdf
- http://lib.mbp.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdf
- http://lib.mbp.ac.id/repository/gamehunters-coin-master_GM406889139.pdf
- http://lib.mbp.ac.id/repository/roblox-robux-hack-generator_GM431946152.pdf
- http://lib.mbp.ac.id/repository/coin-master-free-400-spin-link_GM406889139.pdf
- http://lib.mbp.ac.id/repository/free-minecraft-games-for-kids_GM479516143.pdf
- http://lib.mbp.ac.id/repository/coin-master-hack-apk-35-33_GM406889139.pdf
- http://lib.mbp.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
- http://lib.mbp.ac.id/repository/coin-master-free-spins-cash_GM406889139.pdf
- http://lib.mbp.ac.id/repository/cute-free-stuff-on-roblox_GM431946152.pdf
- http://lib.mbp.ac.id/repository/coin-master-free-spins-hack-link_GM406889139.pdf
- http://lib.mbp.ac.id/repository/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000050ec.bin` `472c92835cc8279f2624084774122b7bab404aebbd1dfd6b4aaa94dcbee46af9`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x50EC	26064 bytes
`font_01_sfnt_off00008c59.bin` `b4e5860ebf2343f9b18b94d86a305cbc7e8ebd2f2a6bfe7ceeed88b67548d8bf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C59	18292 bytes

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