PDF malware analysis — malicious · ab86145b761cb964

MALICIOUS

PDF

40.0 KB Created: 2021-05-11 20:32:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: f4aa08832d24deb97dfbbbca92c945b1 SHA-1: acfdac4e43cfb15481a909694c13669dffdd82f9 SHA-256: ab86145b761cb964fc8dfc7fae3e66f6621b3f685ecd7c62011575ec07d83064

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a 'Robux Hack Generator' lure, strongly suggesting a phishing or malware distribution attempt. The presence of a PDF link farm heuristic indicates a large number of external links, likely for SEO manipulation or to host malicious payloads. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of an attempt to redirect users to malicious sites.

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/431946152/robux-hack-generator-game-hack
- https://www.tsdb.com.au/images/coin-master-2021_GM406889139.pdf
- https://www.tsdb.com.au/images/how-to-get-free-robux_GM431946152.pdf
- https://www.tsdb.com.au/images/how-to-hack-someones-roblox-account_GM431946152.pdf
- https://www.tsdb.com.au/images/cm-spins_GM406889139.pdf
- https://www.tsdb.com.au/images/best-way-to-hack-coin-master_GM406889139.pdf
- https://www.tsdb.com.au/images/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdf
- https://www.tsdb.com.au/images/robux-gift-card-free_GM431946152.pdf
- https://www.tsdb.com.au/images/free-robux-without-verification-or-survey_GM431946152.pdf
- https://www.tsdb.com.au/images/robux-link_GM431946152.pdf
- https://www.tsdb.com.au/images/free-spin-coin-master-iphone_GM406889139.pdf
- https://www.tsdb.com.au/images/coin-master-free-spins-link-download_GM406889139.pdf
- https://www.tsdb.com.au/images/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdf
- https://www.tsdb.com.au/images/coin-master-cheat-codes-free_GM406889139.pdf
- https://www.tsdb.com.au/images/roblox-money-hack_GM431946152.pdf
- https://www.tsdb.com.au/images/free-robux-no-human-verify_GM431946152.pdf
- https://www.tsdb.com.au/images/minecraft-pe-apk-free-download_GM479516143.pdf
- https://www.tsdb.com.au/images/free-coin-master-spins-and-coins-for-daily_GM406889139.pdf
- https://www.tsdb.com.au/images/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdf
- https://www.tsdb.com.au/images/install-free-game-coin-master_GM406889139.pdf
- https://www.tsdb.com.au/images/free-minecraft-alt-generator_GM479516143.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_off00004471.bin` `9255aa2fe46e16781ed49eeb8359ee26bb97f0deb90b02708e0c54298fb9515f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4471	23860 bytes
`font_01_sfnt_off00007996.bin` `f5433ce3dc9930d213a8e7315569ee207b9df6dd56817c97a1fb358bc14a6a3b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7996	18352 bytes

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