PDF malware analysis — malicious · 7d6c5b7eb686429a

MALICIOUS

PDF

53.4 KB Created: 2020-07-31 01:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 53c9e09d48b412accec6277e7de5d2e9 SHA-1: 200907c82c1a794c5f3dd84a8195b751e36dda48 SHA-256: 7d6c5b7eb686429a02e2393d84d6676327ddbcac672f82f84ee64a4f87cc94b7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to the presence of numerous embedded links. One critical heuristic, PDF_MALICIOUS_REDIRECTOR_LINK, indicates that a link points to known malicious redirector infrastructure. Another critical heuristic, PDF_SEO_LINK_FARM, highlights that the PDF contains a mass of external PDF links, suggesting a tactic to manipulate search engine results or distribute malware. The primary malicious IOC is the redirector URL.

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.cc/wb?keyword=english%20vocabulary%20house%20furniture%20pdf
- http://files.lyndonstatesga.com/uploads/1/3/2/7/132712324/fejotugenifa-watikizar.pdf
- http://files.funtastic101.co.uk/uploads/1/3/2/7/132740949/luvopomuvusi_dumobuvakujet_lotudupenu.pdf
- http://files.carolhealy.com/uploads/1/3/0/9/130969080/4a8b8.pdf
- http://files.childrensliteratureassembly.com/uploads/1/3/1/3/131383297/rovefisixibopefuj.pdf
- http://files.thebeamtravel.com/uploads/1/3/1/4/131406140/mexudowaforujav.pdf
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/32380088096.pdf
- https://cdn.shopify.com/s/files/1/0440/6745/5128/files/10153476855.pdf
- https://cdn.shopify.com/s/files/1/0432/6676/9051/files/30958880126.pdf
- https://cdn.shopify.com/s/files/1/0430/0144/6554/files/40845238494.pdf
- https://cdn.shopify.com/s/files/1/0428/2191/0687/files/juvedazogevokidabedim.pdf
- https://cdn.shopify.com/s/files/1/0435/4477/2759/files/rujobudidama.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.pdf
- https://cdn.shopify.com/s/files/1/0430/5820/0729/files/lokewufozazeloki.pdf
- https://cdn.shopify.com/s/files/1/0427/8370/3206/files/82272796201.pdf
- https://cdn.shopify.com/s/files/1/0432/1751/8751/files/fetorupobotoridukewa.pdf
- https://cdn.shopify.com/s/files/1/0440/6539/0757/files/gobagojas.pdf
- https://cdn.shopify.com/s/files/1/0428/2492/5347/files/39258271266.pdf
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/fovikazave.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/
- https://cdn.shopify.com/s/files/1/0432/6676

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000092f9.bin` `a4123d7203d0c47a33f7e4bc37bd359deb4d37eaaa61a6fdc9a57d7f57eb8a8b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92F9	5560 bytes
`font_01_sfnt_off0000a5d8.bin` `51df8c7f65ec2c715e6b9363cd1f6ec24a206e1f79aab2e40ea0efbd82f6f424`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA5D8	10088 bytes

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