Malicious PDF — malware analysis report

Static analysis result for SHA-256 cecedc38fa08883d…

MALICIOUS

PDF

47.2 KB Created: 2020-08-29 14:53:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44e9b6093f70e371899e7734e868c81b SHA-1: 8d06bfbbcd8a6ba9a723cb16d6a6e1f7520ce597 SHA-256: cecedc38fa08883de9c8dc2428f064244e153984337b48e1e5ae38fb3e8552be
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify-hosted PDFs, suggesting a link farm for SEO poisoning. One critical heuristic identified a redirector link to `ttraff.ru`, which is known malicious infrastructure. The document body is heavily garbled but contains the same URL as the redirector, indicating its likely purpose is to lure users to malicious content.

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=g%25C3%25BCn%25C3%25BCm%25C3%25BCz+t%25C3%25BCrk%25C3%25A7esiyle+evliya+%25C3%25A7elebi+seyahatnamesi
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18187133080.pdf
    • https://cdn.shopify.com/s/files/1/0433/6123/9192/files/18412116429.pdf
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/20649806677.pdf
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/84122761219.pdf
    • https://cdn.shopify.com/s/files/1/0434/5892/0605/files/badiwisosatukikuwelukalu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7128/3098/files/koltuk_dwg_indir.pdf
    • https://static.usrfiles.com/ugd/b8c837_33addcbd8a7c4947b9607219c9691ddd.pdf
    • https://static.usrfiles.com/ugd/b8c837_f8bcfb6edb6f4ee89012a1a3fcc13600.pdf
    • https://static.usrfiles.com/ugd/b65acf_71ab84cce08b464390fe13df3a95d9dd.pdf
    • https://cdn.shopify.com/s/files/1/0430/3582/0185/files/vocabulary_packets_greek_and_latin_r.pdf
    • https://cdn.shopify.com/s/files/1/0434/9162/3077/files/57674138486.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/healthcare_waste_management_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/4425/7442/files/bavemuwemodumazidebifejob.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_off00006942.bin
4cfc3b280419d131590670556d24088ceb2e3828e6b2c4107d0d9b5c3cc13086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6942 5352 bytes
font_01_sfnt_off00007b5a.bin
97e9c84b3843af0024d62c883d3962a775355650ead23f482576d6727c2b8981		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5A 11400 bytes
font_02_sfnt_off00009f48.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F48 4324 bytes

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