Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f1547ce486ed071…

MALICIOUS

PDF

53.9 KB Created: 2020-08-09 14:03:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63eaf29c85f703445b15d3bd63a891f0 SHA-1: d7ff2f09dec1406fe01640c4637b5f18edc5ced6 SHA-256: 9f1547ce486ed071f06d5517b3cca1661a61fcc56c32f38de32ef5819d85d0e7
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.ru). This link is presented within the document body as a search result for a 'rental rate blue book', suggesting a lure to trick users into clicking. The presence of numerous links and the redirection to malicious infrastructure indicates a phishing or content-farming attack designed to lead users to harmful sites.

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=rental+rate+blue+book+for+construction+equipment+2020+pdf
    • http://files.writersabodeen.com/uploads/1/3/1/3/131383934/mizetuxasopive_jamoraketerodaz.pdf
    • http://teder.naimahusseini.de/uploads/1/3/0/9/130969723/dobidikep.pdf
    • http://zoweg.coloradocowboycustoms.com/uploads/1/3/0/7/130775085/122e739334391d.pdf
    • http://buliwobif.theinkwelltheatre.org/uploads/1/3/1/6/131606552/fiduwuzisubipedo.pdf
    • https://cdn.shopify.com/s/files/1/0435/7678/7107/files/jofawekuriwopugibe.pdf
    • https://cdn.shopify.com/s/files/1/0439/5443/8302/files/ncr_and_npr.pdf
    • https://cdn.shopify.com/s/files/1/0437/6982/3390/files/xavipu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9735/0554/files/pdf_to_word_converter_online_free_download_software.pdf
    • https://cdn.shopify.com/s/files/1/0430/6668/7642/files/waxodavigubofavitug.pdf
    • https://cdn.shopify.com/s/files/1/0431/3962/9218/files/96769960774.pdf
    • https://cdn.shopify.com/s/files/1/0440/6345/7432/files/23851129291.pdf
    • https://cdn.shopify.com/s/files/1/0433/7949/0968/files/kunotikepetanuxig.pdf
    • https://cdn.shopify.com/s/files/1/0436/9947/0486/files/37618337090.pdf
    • https://cdn.shopify.com/s/files/1/0433/8316/0999/files/20429224947.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/lefepijapadudi.pdf
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/adobe_photoshop_6_tutorials_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/sunuli.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_off0000924d.bin
a5b9f4354d46c50a3513bf4d95217d2e6207684dda6295df99c0779b5254fff5
pdf-font-stream PDF embedded font (sfnt) at offset 0x924D 5912 bytes
font_01_sfnt_off0000a65c.bin
cfeb81a7ea059d379048fb85f588157ab47e54bcf530eba61a5ea4c7e2ada4c0
pdf-font-stream PDF embedded font (sfnt) at offset 0xA65C 10668 bytes