Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3cbca8b0162f2b6…

MALICIOUS

PDF

54.2 KB Created: 2020-08-31 04:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b9c7ac311dd885c242bdfd59252fb882 SHA-1: de03fec321ba45145778a44462764c0228556228 SHA-256: d3cbca8b0162f2b6e0a130aa0d4ba3eef8822241b75cb8e888798537efefaed4
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL. This suggests a phishing or redirection attempt, likely to deliver further malicious content.

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.ru/wix?keyword=movement+building+for+internet+health
    • https://cdn.shopify.com/s/files/1/0464/3337/0264/files/26839045988.pdf
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/inner_sea_bestiary_download.pdf
    • https://cdn.shopify.com/s/files/1/0461/7990/9785/files/kedimom.pdf
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/coercion_theory.pdf
    • https://cdn.shopify.com/s/files/1/0431/2557/1733/files/93720361671.pdf
    • https://cdn.shopify.com/s/files/1/0433/5081/8969/files/xizolufagederuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/0097/7816/files/sibavovomuvite.pdf
    • https://cdn.shopify.com/s/files/1/0437/2476/7383/files/l_alphabet_morse.pdf
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/46232684080.pdf
    • https://static.usrfiles.com/ugd/9cfd0a_4a734dc51f2240939010a98e16617942.pdf
    • https://static.usrfiles.com/ugd/ec0c41_0384bdd203e14ed999cf301fee1e18b6.pdf
    • https://static.usrfiles.com/ugd/b8c837_79205009721042c7a088d05b4efaf80a.pdf
    • https://static.usrfiles.com/ugd/b8c837_8d6aea8c2aee497888f58e33595ee7da.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e93d75c96154d1f9f1bd31d147980fd.pdf
    • https://static.usrfiles.com/ugd/b8c837_9a0d2140dc5c485c8c0658163308a9da.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_off000094d3.bin
c253ce29737750bddcb302cffe742849f2cb8f6ca7197d9e87b8e4432c8198c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94D3 5348 bytes
font_01_sfnt_off0000a6e8.bin
bebd593b30f80bcf1be7823d80439f82432f43501b107143604fbada12ab6e20		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E8 10932 bytes

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