Malicious PDF — malware analysis report

Static analysis result for SHA-256 593056ffc449a357…

MALICIOUS

PDF

44.7 KB Created: 2020-08-22 03:22:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fd321c5aea8ebf7cbd528bce93e6f82 SHA-1: eaafa4e713dc7a5f83f0b2b8c7ac34d5b4f2dced SHA-256: 593056ffc449a357fea1f767dbb90c84efad6cebe9237bdfc9227b3ff470a02b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=healthy+vegetarian+diet+guidelines'. The document body, though partially corrupted, also contains this URL, suggesting it is the primary lure. The file also exhibits characteristics of a link farm, with many links pointing to Shopify domains, likely to improve search engine ranking for malicious content. No scripts were extracted, but the presence of malicious redirector links strongly indicates a phishing or scam attempt.

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.cc/pify?keyword=healthy+vegetarian+diet+guidelines
    • http://nileve.nicolettegraceboaz.com/uploads/1/3/1/1/131164127/senuresi.pdf
    • http://files.mandelnewman.com/uploads/1/3/1/3/131379828/gozuv.pdf
    • http://laxijij.eaglecrestcheer.com/uploads/1/3/1/6/131636644/rumetokixe.pdf
    • https://cdn.shopify.com/s/files/1/0433/4796/8149/files/html_print_div.pdf
    • https://cdn.shopify.com/s/files/1/0437/9354/7426/files/synchronous_motor_theory.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23651487672.pdf
    • https://cdn.shopify.com/s/files/1/0433/7103/6835/files/35862256872.pdf
    • https://cdn.shopify.com/s/files/1/0431/4421/6727/files/jiteginekewozakam.pdf
    • https://cdn.shopify.com/s/files/1/0434/3152/6561/files/bivajaboredevirotusupaw.pdf
    • https://cdn.shopify.com/s/files/1/0458/1418/6150/files/90927643831.pdf
    • https://cdn.shopify.com/s/files/1/0429/9420/4825/files/2631037953.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/wibun.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_off00006fa9.bin
e96a378b9a1d5ee7b6a2b8ca717bc924a07407078374a77fdbe6278f0f7bd0ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA9 5208 bytes
font_01_sfnt_off0000815a.bin
6d28e121965f180d7f4367ab3eb2aab56484ca54a53abeff72a7935aacce1e25
pdf-font-stream PDF embedded font (sfnt) at offset 0x815A 10796 bytes