PDF malware analysis — malicious · cad9f218f40e4e59

MALICIOUS

PDF

36.0 KB Created: 2021-07-01 13:16:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 9a3c72b40a440a4d8000768681b41f1d SHA-1: 5512e8a83ba5538af0dd06eb4467c6a30ee12c43 SHA-256: cad9f218f40e4e5904c12557f96924f17fbc99f160edf9aabd954314ab14a66a

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are related to game hacks and free in-game currency, such as Robux. The heuristic PDF_SEO_LINK_FARM indicates a large number of these external links, suggesting a link farm designed to attract users with deceptive content. The ML_NYX_PDF_MALICIOUS classifier also flagged this document with high confidence. No scripts were extracted, but the embedded URLs and the document's content strongly suggest a phishing or malware distribution attempt.

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 PDF link annotation
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/how-to-hack-stats-in-dragon-ball-ultimate-warriors-roblox_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/get-free-robux-add-codes_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/how-to-hack-in-roblox-games-on-computer_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/roblox-jailbreak-speed-hack-codes_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/everest-roleplay-hack-roblox_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/roblox-cbx4-hack_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/yyoutube-robux-hacks_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/how-to-get-free-robux-mircosoft-rewards_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/how-to-get-a-free-code-for-a-robux-card_GM431946152.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/coin-master-cards-free_GM406889139.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/coin-master-app-hack_GM406889139.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/android-coin-master-hack_GM406889139.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
- https://e-learningmin19jkt.com/__statics/gudangsoal/files/free-robux-promo-codes-december-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000033b8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x33B8	23404 bytes
SHA-256: `5f7e46cc9f3dbe7a5d6fbe0624c7e70602e17fce228ccc0428bdd37020b94fa1`
`font_01_sfnt_off000067c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67C0	19168 bytes
SHA-256: `e6cc7c6a6775f162e6c66709e406c353214b43a91bcf93606eb306bb945e76a3`

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