Malicious PDF — malware analysis report

Static analysis result for SHA-256 28df208654e4a76d…

MALICIOUS

PDF

45.6 KB Created: 2020-08-07 19:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cfc5bd9071207320886474688e0291f SHA-1: 94f7306201abd73c621fe18e931c45177aea41b0 SHA-256: 28df208654e4a76d8a28e9458f1b3a1c750a7767e4fc19f006d7bc5c9f73552b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a deceptive title and body text related to 'Cholesterol lowering foods list pdf' to entice users. It embeds multiple links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.com/pify?keyword=cholesterol+lowering+foods+list+pdf. Another critical heuristic indicates a PDF link farm, suggesting the document is part of a larger SEO manipulation scheme to distribute malicious content. No scripts were extracted, but the primary attack vector is the malicious link within the document.

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.com/pify?keyword=cholesterol+lowering+foods+list+pdf
    • http://files.crazyartmama.com/uploads/1/3/1/4/131407823/juwugerazosudakevonu.pdf
    • http://sugewefo.potlatchfundcohorts.org/uploads/1/3/1/4/131482995/317d517c32a4752.pdf
    • http://files.jspublishing.org/uploads/1/3/0/7/130776590/tateratenaxejagezuda.pdf
    • http://files.connieandcoopercatering.com/uploads/1/3/2/6/132682989/fanuwafedilobo.pdf
    • http://files.ukcamperhire.uk/uploads/1/3/0/7/130739883/513520.pdf
    • https://cdn.shopify.com/s/files/1/0438/8497/0139/files/vovebilodebevorogefukuduf.pdf
    • https://cdn.shopify.com/s/files/1/0433/1202/1657/files/65111182340.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/a_breviary_of_seismic_tomography.pdf
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/josene.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/gavapoguzinojurodir.pdf
    • https://cdn.shopify.com/s/files/1/0430/9932/4580/files/felun.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/wikolisivob.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62114329075.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xawifakupubegezixezo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/52970285131.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_off000074ce.bin
90a263784e7c3ad7094f17b3e4bca5cc8e821e0bc3ef21b2466f99107affbe21
pdf-font-stream PDF embedded font (sfnt) at offset 0x74CE 5092 bytes
font_01_sfnt_off0000862c.bin
585a23fc92b903ff4b6cf8d19dc434829e0c448776790de5dfda0dbf152af5ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x862C 10256 bytes