Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9b1ee0e4231a135…

MALICIOUS

PDF

38.6 KB Created: 2020-08-31 17:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f70906fbaf10cafa7934360b3b63056 SHA-1: cc3675bb2f75816fd0e3d4f86b5549412bc52b39 SHA-256: e9b1ee0e4231a1355b27bac7544af02cfea3bddcaaa4d1b4c828ff6954a05769
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, disguised as a search result for printer software. This indicates a social engineering tactic to trick users into visiting a potentially harmful site. The PDF also contains a large number of external links, suggesting a link farm used for SEO poisoning or to distribute malware. 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=canon+mx310+printer+software+for+mac
    • https://static.usrfiles.com/ugd/0dcf4b_c6ac4ae70be640dca7909a71c0646c2c.pdf
    • https://static.usrfiles.com/ugd/89064d_7c21e3a506594094b63fcdca6aa7b302.pdf
    • https://static.usrfiles.com/ugd/a91264_f6d91d8347af49d1a5af43ad6e0a5679.pdf
    • https://static.usrfiles.com/ugd/f63f29_f25c0c1d5a4347c49e8797c6e58a9d11.pdf
    • https://static.usrfiles.com/ugd/b8c837_c2931eb0f4b647fc8cead60f5e2cafda.pdf
    • https://static.usrfiles.com/ugd/4d935e_5c8977c78b274b5e8cf2247a71420129.pdf
    • https://static.usrfiles.com/ugd/2f7815_79852f146c1d4777b7b3e034341205c7.pdf
    • https://static.usrfiles.com/ugd/b8c837_0bc6a4492a024c3e8a63f388d20d6214.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2a1fcf02e7b413fa64c9be161872fc0.pdf
    • https://static.usrfiles.com/ugd/afe78f_2f1f70dff8e64cc9a455b05c79b00225.pdf
    • https://static.usrfiles.com/ugd/217d68_9e7832159ce14b67a19e8be81a0a9aec.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_off000058c4.bin
df36c4a5d4dab8c95f70a9bb8d39b0db3f692974d8d424b7185834a031097e90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58C4 5552 bytes
font_01_sfnt_off00006bac.bin
2199dff8f34f7e65429e30265e56258e52b42709e52e6b6613ab2f31830cc546		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAC 10400 bytes

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