PDF malware analysis — malicious · 9b8315ff806faaa3

MALICIOUS

PDF

50.0 KB Created: 2020-07-24 11:06:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 063b9704113b6fde120a7660857f7587 SHA-1: f6954c0ac80d1b32c47e759143700c517f57757e SHA-256: 9b8315ff806faaa3374b238415f7597f32a318e10c2ee9160463ed9d383cae9d

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a direct link to a known malicious redirector at 'ttraff.com'. Another heuristic identifies a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content across multiple sites. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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/wb?keyword=il%20buio%20oltre%20la%20siepe%20testo%20completo%20pdf
- http://files.vigaeatery.com/uploads/1/3/1/3/131379217/zitiweku.pdf
- http://files.azpetscan.com/uploads/1/3/2/6/132682171/6439656.pdf
- http://files.triplikit.com/uploads/1/3/1/0/131070146/gijugeteridur.pdf
- http://files.soduparentsposse.com/uploads/1/3/2/7/132710676/mozewejijen-zegedurogaxan-zuzoxi-jazetalepiz.pdf
- http://files.geo-mac.com/uploads/1/3/1/4/131483343/nezegufip.pdf
- http://files.triplikit.com/upl
- https://cdn.shopify.com/s/files/1/0428/1312/8867/files/sudazuwike.pdf
- https://cdn.shopify.com/s/files/1/0432/4438/8514/files/nugunesiwezoseguseboz.pdf
- https://cdn.shopify.com/s/files/1/0428/8924/8927/files/kopupigaxibon.pdf
- https://cdn.shopify.com/s/files/1/0433/2060/6885/files/jalodaxelevevikevixug.pdf
- https://cdn.shopify.com/s/files/1/0430/4932/0610/files/begusepubaronurexuda.pdf
- https://cdn.shopify.com/s/files/1/0438/2100/7005/files/fitodufozinamunu.pdf
- https://cdn.shopify.com/s/files/1/0429/4311/9516/files/96546383558.pdf
- https://cdn.shopify.com/s/files/1/0429/8768/4003/files/27839294834.pdf
- https://cdn.shopify.com/s/files/1/0433/8286/6072/files/39788637654.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/70648336699.pdf
- https://cdn.shopify.com/s/files/1/0437/5409/4743/files/fatilumopixuzumiloxi.pdf
- https://cdn.shopify.com/s/files/1/0428/6241/1935/files/zomexixaralesijoj.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_off00008465.bin` `56949a86dfd1ef0c5d021c46d9e5274038dd5e64e584d80ee991b3900fd4b6b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8465	5156 bytes
`font_01_sfnt_off000095e0.bin` `650f6b651d08bada940234a2beec7059fc8dcbfdd41ddb4e7293cf47088425e4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x95E0	10328 bytes

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