PDF malware analysis — malicious · cea85c32846f8c4f

MALICIOUS

PDF

32.8 KB Created: 2021-07-02 01:27:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 90fdd124cafb86a576a229b3a68e7962 SHA-1: c88cb1a1ff176c67c1db7b66d2872a2dd4c8b007 SHA-256: cea85c32846f8c4f59c6d4f9de00a6d07907fcea59a4b5d2c094f1dedef1390f

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links to external websites, many of which are SEO-optimized and point to game-related cheats and generators. The ML classifier strongly indicates maliciousness, and the presence of a 'download button' lure suggests a phishing or malware distribution attempt. The document body itself contains obfuscated text and URLs, reinforcing the malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9824

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/free-computer-core-roblox-game-hack
- http://lib.untad.ac.id//repository/hack-coin-master-free-spins_GM406889139.pdf
- http://lib.untad.ac.id/repository/free-spins-on-coin-master-game_GM406889139.pdf
- http://lib.untad.ac.id/repository/can-i-hack-uc-in-pubg_GM1330123889.pdf
- http://lib.untad.ac.id//repository/coin-master-hack-pro-gamers_GM406889139.pdf
- http://lib.untad.ac.id/repository/how-hack-in-roblox-with-bad-words_GM431946152.pdf
- http://lib.untad.ac.id/repository/coin-master-homepage_GM406889139.pdf
- http://lib.untad.ac.id/repository/roblox-pokemon-brick-bronze-cheat-engine_GM431946152.pdf
- http://lib.untad.ac.id/repository/ride-line-hack-roblox_GM431946152.pdf
- http://lib.untad.ac.id/repository/how-to-get-free-robux-admin_GM431946152.pdf
- http://lib.untad.ac.id//repository/get-free-spins-coin-master-2021_GM406889139.pdf
- http://lib.untad.ac.id/repository/tiktok-like-bot-free_GM835599320.pdf
- http://lib.untad.ac.id/repository/get-robux-for-free-2021-no-survey_GM431946152.pdf
- http://lib.untad.ac.id/repository/free-tiktok-followers-generator_GM835599320.pdf
- http://lib.untad.ac.id/repository/hack-robux-infinitos_GM431946152.pdf
- http://lib.untad.ac.id/repository/free-robux-just-click_GM431946152.pdf
- http://lib.untad.ac.id/repository/best-roblox-hack-2021_GM431946152.pdf
- http://lib.untad.ac.id/repository/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdf
- http://lib.untad.ac.id/repository/bloxawards-com-earn-free-robux_GM431946152.pdf
- http://lib.untad.ac.id/repository/roblox-f3x-hacks-gui_GM431946152.pdf
- http://lib.untad.ac.id/repository/how-to-change-username-on-roblox-for-free_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000029ee.bin` `cff910cbce7a32c0c7bac9df8da2bd5b34d82649e0ee56c8ab84ddb7a3f90a22`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x29EE	21976 bytes
`font_01_sfnt_off00005a89.bin` `45eaf09ca698b531cc12a30112fc90f462f9f922894726b32998744f4106cef8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A89	19332 bytes

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