Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb77fc92e19d725f…

MALICIOUS

PDF

41.5 KB Created: 2020-08-12 19:27:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c45ac469df8619f19ec4151a31981f2 SHA-1: e374c6ad2c323722c9d4b277b602b126a4a253f8 SHA-256: eb77fc92e19d725fa9cbf5126347c922c3a358fd67155f41a7b78112d7a12f1d
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body and embedded links suggest a lure related to 'Roman art ramage 6th edition pdf', which redirects to 'https://ttraff.ru/pify?keyword=roman+art+ramage+6th+edition+pdf'. This URL is likely used to funnel victims to a phishing or malware distribution site. The PDF also contains a mass external PDF link farm, with many links pointing to Shopify domains, likely for SEO poisoning to increase visibility.

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=roman+art+ramage+6th+edition+pdf
    • http://files.ohsband.org/uploads/1/3/0/9/130970004/827b3.pdf
    • http://files.footprintspodiatry.co.nz/uploads/1/3/2/6/132681910/pafapisonorani.pdf
    • http://xuweta.southsiouxfallshomes.com/uploads/1/3/1/4/131407406/podawopux_kopotewilutaxo_dijaxivox.pdf
    • http://files.yellowroseevents.co/uploads/1/3/1/4/131406498/d847b5f82db26.pdf
    • https://cdn.shopify.com/s/files/1/0432/3141/2379/files/lofasu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3459/7784/files/new_vegas_jsawyer.pdf
    • https://cdn.shopify.com/s/files/1/0432/5697/1432/files/nosafikutiwopabimizijew.pdf
    • https://cdn.shopify.com/s/files/1/0431/1023/6321/files/povorapumukoxeti.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/zexixisejotopowega.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/99573601002.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7082322425.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4702/files/jorejozuxipabojajipowize.pdf
    • https://cdn.shopify.com/s/files/1/0434/0364/0999/files/66118048428.pdf
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/computer_system_architecture_by_morris_mano.pdf
    • https://cdn.shopify.com/s/files/1/0436/8151/3625/files/76445858468.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5063/files/famesilunupoxarelud.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_off0000640e.bin
fffc9c57230bb9892cf21eb4aee5d72a8b12d95aaceadccec8ecf6326b7a94a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x640E 5404 bytes
font_01_sfnt_off00007642.bin
b5550d8b3ba9006bb5438a3a29841b17cf18bbb22052497f19aa3f2a0878e6ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x7642 10244 bytes