Malicious PDF — malware analysis report

Static analysis result for SHA-256 d778e82d61832d2b…

MALICIOUS

PDF

40.6 KB Created: 2020-09-01 01:51:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72ec89e29b35f24464f405196ae9bf2e SHA-1: 23e60dcf734b3b8e8a4478bee199a259e6257d52 SHA-256: d778e82d61832d2b2a2a56f1acf88710137b6fdc5bfd76bbd320d33b843c9401
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1200 Hardware Add-in

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on static.usrfiles.com. One of the primary links, however, directs to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector, suggesting a lure to a malicious site. No scripts were extracted from this sample.

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.ru/wix?keyword=set+associative+mapping+pdf
    • https://static.usrfiles.com/ugd/c8a981_fa8ea8261ef848339567baee2c0037b0.pdf
    • https://static.usrfiles.com/ugd/73c254_4dd0065157694c77826d00e9b55b018c.pdf
    • https://static.usrfiles.com/ugd/d4da64_73f0b1f593634f86bded776f6bcf1c5a.pdf
    • https://static.usrfiles.com/ugd/b8c837_d68c6f48aa114e01934e7c0366e1c7f3.pdf
    • https://static.usrfiles.com/ugd/99965f_7d98a71a3a224c389818bc13eb9ef73f.pdf
    • https://static.usrfiles.com/ugd/ef253e_a4e8a35b54674e5b8db7baac536d3318.pdf
    • https://static.usrfiles.com/ugd/c75f60_fce866241de24e0a837ef3b3d0e51007.pdf
    • https://static.usrfiles.com/ugd/73cb9e_da9f6013e2a84ebcaef27127bf719908.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/70685491418.pdf
    • https://cdn.shopify.com/s/files/1/0449/7843/8302/files/festo_pneumatic_cylinder_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0430/4781/3269/files/rixaxofopon.pdf
    • https://cdn.shopify.com/s/files/1/0437/6631/7205/files/phylum_ctenophora.pdf
    • https://cdn.shopify.com/s/files/1/0436/1817/3086/files/kufewovovopapuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/9952/1181/files/bruno_mars_discography.pdf
    • https://cdn.shopify.com/s/files/1/0434/4361/7959/files/hm_duvet_size_guide.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.

FilenameKindSourceSize
font_00_sfnt_off00006175.bin
9abf64fc01ac106fd67619acfccb24c30aa3420a0af56c375b84700d640bf7ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6175 5508 bytes
font_01_sfnt_off00007430.bin
aca5a5aa6ab89df4c19b060b185f69b0bf899600486d3a4fb2e251a14a5afb75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7430 9900 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.