PDF malware analysis — malicious · ac87afb175c977fe

MALICIOUS

PDF

40.3 KB Created: 2020-06-04 00:29:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8e221dafa2286a25db0532cd5e974dee SHA-1: 602a1e7b2735c028e4123315a7062f3057da4638 SHA-256: ac87afb175c977fe8b42973ef4a79fbb0a23ffcf82e8a1ed17cdfb8a0611fbd7

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was identified as malicious due to a high density of external links, a technique commonly used in SEO poisoning or link farm attacks. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, with the primary domain being 'swilliamson.ca'. The embedded URL 'http://thebusinesstip.com/uploads/1/3/0/4/130483286/130483286.html#%25D0%25BC%25D1%2583%25D0%25B4%25D1%2580%25D1%258B%25D0%25B5+%25D1%2581%25D0%25BB%25D0%25BE%25D0%25B2%25D0%25B0+%25D1%2581%25D1%2583%25D0%25BB%25D1%2582%25D0%25B0%25D0%25BD%25D0%25B0+%25D1%2581%25D1%2583%25D0%25BB%25D0%25B5%25D0%25B9%25D0%25BC%25D0%25B0%25D0%25BD%25D0%25B0+%25D1%2581%25D1%258B%25D0%25BD%25D1%2583' also points to a potentially malicious resource. No scripts were extracted from this sample.

Heuristics 3

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.
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://thebusinesstip.com/uploads/1/3/0/4/130483286/130483286.html#%25D0%25BC%25D1%2583%25D0%25B4%25D1%2580%25D1%258B%25D0%25B5+%25D1%2581%25D0%25BB%25D0%25BE%25D0%25B2%25D0%25B0+%25D1%2581%25D1%2583%25D0%25BB%25D1%2582%25D0%25B0%25D0%25BD%25D0%25B0+%25D1%2581%25D1%2583%25D0%25BB%25D0%25B5%25D0%25B9%25D0%25BC%25D0%25B0%25D0%25BD%25D0%25B0+%25D1%2581%25D1%258B%25D0%25BD%25D1%2583
- http://swilliamson.ca/uploads/1/3/0/4/130494172/zaledotusuzoxikoli.pdf
- http://geneticcounsellingconsultancy.net/uploads/1/3/0/7/130739237/bawedodib.pdf
- http://plisss.com/uploads/1/3/0/2/130288551/4456151.pdf
- http://powellacc.com/uploads/1/3/0/2/130270746/vuxuroriketon.pdf
- http://thebusinesstip.com/uploads/1/3/0/4/130483286/terms.html
- http://thebusinesstip.com/uploads/1/3/0/4/130483286/dmca.html
- http://thebusinesstip.com/uploads/1/3/0/4/130483286/policy.html
- https://duroxonizisi.files.wordpress.com/2020/06/jonajifusugageroza.pdf
- https://kovuruboxa660899873.files.wordpress.com/2020/06/debetirobaxaj.pdf
- https://malejigide.files.wordpress.com/2020/06/rutejabapeso.pdf
- https://xelilen.files.wordpress.com/2020/06/nukuboxizuwotam.pdf
- https://dotuwapifufe.files.wordpress.com/2020/06/51635053152.pdf
- https://tuvinino.files.wordpress.com/2020/06/guturuduni.pdf
- https://wezisigoda.files.wordpress.com/2020/06/80562279667.pdf
- https://sotuvevom.files.wordpress.com/2020/06/jedafijuvegimuxol.pdf
- https://jugavikit.files.wordpress.com/2020/06/ziwedurononipenosisi.pdf
- https://wukajex634484872.files.wordpress.com/2020/06/62397761575.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006470.bin` `23dc9de31e81465c51e8a5c07d8bde17e8f68f50e8a6c1d361fb4d839303d178`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6470	15124 bytes

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