PDF malware analysis — malicious · 35fba83912e8e38b

MALICIOUS

PDF

40.2 KB Created: 2020-08-31 01:59:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a3d8a1dae1c66cff0c2f0e4778c52b39 SHA-1: 5d56a341abab54ff247423f8cb94c92d98ebe835 SHA-256: 35fba83912e8e38bdd7d44e6e8d04ce48b4fd25dc79b3393c2f62aaefd8e5e74

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged for containing a malicious redirector link and a large number of external PDF links, indicating a link farm. The primary malicious URL identified is ttraff.cc, which is likely used to funnel users to a malicious site. The document body contains garbled text but includes the suspicious URL and a benign-looking PDF filename, suggesting a lure.

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.cc/wix?keyword=genie+garage+door+opener+powerlift+9
- https://cdn.shopify.com/s/files/1/0435/6459/7397/files/convert_string_to_integer_java.pdf
- https://cdn.shopify.com/s/files/1/0433/0261/7252/files/logitech_m325_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pegegezanonipilupe.pdf
- https://static.usrfiles.com/ugd/b8c837_b0618a34573440f1a81cb9f089fdd66b.pdf
- https://static.usrfiles.com/ugd/b8c837_828c7b6b1e374f26b03c6deba4942538.pdf
- https://static.usrfiles.com/ugd/b8c837_892d3fbbb69d41a09f1340ce68271130.pdf
- https://static.usrfiles.com/ugd/ca300b_21eb1b89c1f2451d8e89bb54bc28a9ef.pdf
- https://static.usrfiles.com/ugd/0b46e6_983f5409cbf94fad8dc43fdea4b3b4b9.pdf
- https://static.usrfiles.com/ugd/03ae60_29c8f03863044f8a8ce628b72f7ad0e8.pdf
- https://static.usrfiles.com/ugd/b8c837_40dfeb081a0444c7a12cf354aee2e36d.pdf
- https://static.usrfiles.com/ugd/b8c837_2b501853060a42d7b78d1b69e0aee4bf.pdf
- https://static.usrfiles.com/ugd/de65f7_d31cdbd27a7444178228617d0229e700.pdf
- https://static.usrfiles.com/ugd/b8c837_4c41bea29aba489cbd092bdc608078f5.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_off00005e89.bin` `5a7500e9395149b8914b8315554efdfafc3373e4fa1e46f645192af31b0fdc8d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E89	5308 bytes
`font_01_sfnt_off000070bf.bin` `ecf80dd78919b8deafac8f56228c4e52761109e5180bf9f3a4008edd0192697f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70BF	10560 bytes

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