Malicious PDF — malware analysis report

Static analysis result for SHA-256 36da2c8e81bcbb95…

MALICIOUS

PDF

46.1 KB Created: 2020-08-28 14:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5aa3fad0d7216d203ab70e0fcff2b5e2 SHA-1: a7da9dafa36daa33171c8a0818c49edd1ac71d66 SHA-256: 36da2c8e81bcbb95340d62970282ff00555c1236528425954646440c3c3ed72b
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=in%25C5%259Faat+sim+indir'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, many hosted on shopify.com. The primary intent appears to be directing users to potentially malicious or spam content through a large number of outbound links.

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/pify?keyword=in%25C5%259Faat+sim+indir
    • http://files.parentsoftransgenderkids.org/uploads/1/3/0/8/130814553/zabilix_riwigas_wovetok.pdf
    • https://cdn.shopify.com/s/files/1/0431/7390/4545/files/kendo_scheduler_custom_event_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/6728/4379/files/broiler_breeders.pdf
    • https://cdn.shopify.com/s/files/1/0430/4335/6825/files/pubejozexiwotidixuxojib.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/vurulene.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/tijudumilexuvelimoteti.pdf
    • https://cdn.shopify.com/s/files/1/0437/1267/5990/files/52339768650.pdf
    • https://cdn.shopify.com/s/files/1/0436/9262/1978/files/western_movies_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/josuge.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/20600227644.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005daa.bin
05ff8ed3c9dd16d4f75a0d366a43546b05fce8ae151c2871b744eff91cdf8dd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DAA 5124 bytes
font_01_sfnt_off00006e75.bin
52fa2e79a84089a7026d9272ebdc88ff0fd5c6cd4d73e53182b2cae91ea34b48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E75 12876 bytes
font_02_sfnt_off000095bc.bin
660d05b38fea380e8cc13f4a5a7db764e9bd2a20a73145a73af50c118749f22b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95BC 16060 bytes

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