PDF malware analysis — malicious · dbb319e78ecf3a85

MALICIOUS

PDF

35.3 KB Created: 2020-08-28 19:36:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4e7c32e6953f46b6b5b4ffbcbf76c704 SHA-1: 492e82db45e19f520c09b05c87f608f1322e09e0 SHA-256: dbb319e78ecf3a855cab289f98cd79af478b8c154e6698b3be80d18541545edc

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with one identified as a malicious redirector. The heuristic firings indicate that the document is part of a link farm, likely intended for SEO manipulation or to distribute malicious content. The primary malicious IOC is the redirector URL, which is used to funnel traffic to potentially harmful destinations.

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://ttraff.com/wix?keyword=body+shop+Sensuele+massage+Olie
- https://static.usrfiles.com/ugd/b8c837_6b1e24127d5c4175b889c175a960c520.pdf
- https://static.usrfiles.com/ugd/b8c837_68d82d63751d4673a654b89ed94a7141.pdf
- https://static.usrfiles.com/ugd/b8c837_f2813e3612024092b46563c5f60a23ff.pdf
- https://static.usrfiles.com/ugd/b8c837_f0364a0c79614c7c8e994394df21ac15.pdf
- https://static.usrfiles.com/ugd/b8c837_81611af586b04fcfa36ba52566eaba96.pdf
- https://static.usrfiles.com/ugd/b8c837_7254b13464f7453bb03adde8555a7a0a.pdf
- https://static.usrfiles.com/ugd/b8c837_cf7e75be42e84fb39461b4b2bf6d0847.pdf
- https://cdn.shopify.com/s/files/1/0429/8460/3801/files/nugovevobanorubikumito.pdf
- https://cdn.shopify.com/s/files/1/0448/5585/3218/files/lend_lease_corporation_annual_report.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdf
- https://cdn.shopify.com/s/files/1/0430/3329/7058/files/tigeregoxudavunimafodit.pdf
- https://cdn.shopify.com/s/files/1/0431/5214/6587/files/xewomiselukutesulobof.pdf
- https://static.usrfiles.com/ugd/b8c837_f27b1b26760645159a8becefc4c798b6.pdf
- https://static.usrfiles.com/ugd/b8c837_42717236b40443d0974665c2105e88a0.pdf
- https://static.usrfiles.com/ugd/b8c837_f6454569ec054182aca7b573c3613ff6.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000499b.bin` `634fe6ce838301fe470307a56fb7f0d087eebc4c49aa68ae0ba1972036b28065`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x499B	5748 bytes
`font_01_sfnt_off00005d10.bin` `9ffd98c6b1d58c645dabc8118b7542c188c38db7c8f98cdefaa6688ebdef4b29`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D10	10396 bytes

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