Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc0214a8b19a011f…

MALICIOUS

PDF

40.6 KB Created: 2020-08-30 19:44:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b81d34536b20ee39f4355946e3f0c800 SHA-1: 26760408a90682482ef2893aa651b14814041f17 SHA-256: dc0214a8b19a011f7dd998a136e88662961848511799b35015ba2306865331a6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. Another heuristic flags a link to a known malicious redirector. The document body itself is largely unreadable, but the presence of the malicious redirector URL and the link farm strongly suggest an attempt to lure users to malicious websites. The ML classifier also flagged this PDF with high confidence.

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=alad+v+nav+coordinate
    • https://static.usrfiles.com/ugd/eb4c03_6c013f09a1094957a28dd337fa17d39b.pdf
    • https://static.usrfiles.com/ugd/b8c837_a0d3364034134d359eb31f41ffd4f906.pdf
    • https://static.usrfiles.com/ugd/12daa7_f5dfaf05f14c473680b3fbca3076a31c.pdf
    • https://static.usrfiles.com/ugd/253000_b079de6dc5094adea145cafc4ae2c3c2.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_db06d62721de40e3864387c9200f2be6.pdf
    • https://static.usrfiles.com/ugd/b8c837_64705baa84e54f04aaef17b344e24764.pdf
    • https://static.usrfiles.com/ugd/0e9fc2_fb7e191e70f548a6b996066c1eec43ea.pdf
    • https://static.usrfiles.com/ugd/510a18_5fe6a9e060b641f5a86ad5a7b318ae5d.pdf
    • https://static.usrfiles.com/ugd/b8c837_eef65faab57c451da30947b4172d077f.pdf
    • https://static.usrfiles.com/ugd/764aaa_c67dad8ae62e4234a37c6423234adac1.pdf
    • https://static.usrfiles.com/ugd/b8c837_3145514fadbc403c980e1205c7af80c7.pdf
    • https://static.usrfiles.com/ugd/36f25b_297905fcef0c444395dd3a80304ef7d4.pdf
    • https://static.usrfiles.com/ugd/b8c837_2c693b2f74a84c5d82f66b5838e8335d.pdf
    • https://static.usrfiles.com/ugd/b8c837_b62ce61e7b49492f9187ab3132f7c316.pdf
    • https://static.usrfiles.com/ugd/dc8a8e_39bbdd5cf25f4446b9accd8a242454e2.pdf
    • https://static.usrfiles.com/ugd/d55797_bbf249d78418469996e7b964c09d97ad.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_off000062b5.bin
1ca7ca1c6a2c7bc0760b72a8fadf445ffc429c2695b55f7fca4de5c2c4115c1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62B5 4804 bytes
font_01_sfnt_off00007314.bin
97941b89b62390f46bdbec8da5f52948413abb407a2f9e4dd5a25a89b4b108a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7314 10052 bytes

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