PDF malware analysis — malicious · bfe43fbe5d5e3948

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 21:45:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 6ea78a8d6b8b37f494d996cfa0f93d1d SHA-1: 8313906b2fc3a322ab9fd171e930bdebd4da1ff0 SHA-256: bfe43fbe5d5e3948e0b0e4be50f19844398f6cdc82f34a60fd077eddd2979e38

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and a specific external URI pointing to game hack download sites, indicating a lure for users to download potentially malicious software. The ML classifier strongly flagged this PDF as malicious, and the presence of a 'download button' heuristic further supports this assessment. The document body also contains references to 'free robux' and 'game hack', reinforcing the phishing lure.

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/climrbx-free-robux-game-hack
- https://www.solararabialtd.com/uploaded_files/userfiles/files/blogger-coin-master-free-spins_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-online-hack-download_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-online-minecraft-server_GM479516143.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-date-and-time-hack_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-gun-script-hack-r15_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-spins-coin-master-links-2021_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-com-roblox_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-roblox-game-for-computer_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-apk-free-download-016-0_GM479516143.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-free-download-ios_GM479516143.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-use-cheat-engine-on-roblox_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/get-free-robux-no-human-verification_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/more-robux_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/lumber-tycoon-money-hack-roblox-2021-february_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/hacker-commands-roblox_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-scam-on-roblox_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/tiktok-free-games_GM835599320.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_off00003250.bin` `95cb5fd4c2e6c4cf54d14b24552d8cc7f56a1e8b1418c87aa117b55daf38a323`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3250	21656 bytes
`font_01_sfnt_off000061d9.bin` `e6cc7c6a6775f162e6c66709e406c353214b43a91bcf93606eb306bb945e76a3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61D9	19168 bytes

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