Malicious PDF — malware analysis report

Static analysis result for SHA-256 f86e7be17417f0ce…

MALICIOUS

PDF

33.3 KB Created: 2020-08-21 13:06:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 921668c233cf4c2b4b9301837eb2d643 SHA-1: 03c637298be913517c7ac00289d3ca9b8573a4fe SHA-256: f86e7be17417f0ceaabb302fa54c4098492afa8a784fc6401b4949b855e50432
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm designed to redirect users. One of the primary links, 'https://ttraff.cc/pify?keyword=anthem+lights+easter+medley', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the intended lure. The presence of numerous links to Shopify domains, some benign and some potentially part of the link farm, further supports this attack pattern.

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=anthem+lights+easter+medley
    • http://lavadukul.tidytimeservices.com/uploads/1/3/2/6/132680981/5344373.pdf
    • http://files.flexgangent.com/uploads/1/3/2/6/132681617/mejokaxexidu-mekuwugu-gexasonevefevup.pdf
    • https://cdn.shopify.com/s/files/1/0430/2703/8369/files/63403576671.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/fotilun.pdf
    • https://cdn.shopify.com/s/files/1/0432/1925/5456/files/92394296693.pdf
    • https://cdn.shopify.com/s/files/1/0428/0611/6511/files/rizizowobegedagaporepew.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/bezezu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0874/3834/files/apc_back-_ups_xs_1300.pdf
    • https://cdn.shopify.com/s/files/1/0444/4173/1239/files/sql_query_interview_questions_and_answers_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/9901/1738/files/angles_of_regular_polygons_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/8597/8013/files/40774475430.pdf
    • https://cdn.shopify.com/s/files/1/0430/6999/7217/files/tetoxekedegaludemijapi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8688/8601/files/concept_of_computer_graphics.pdf
    • https://cdn.shopify.com/s/files/1/0431/9232/0161/files/30599753467.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/soreluseloxajakikolo.pdf
    • https://cdn.shopify.com/s/files/1/0440/3003/4085/files/21611963206.pdf
    • https://cdn.shopify.com/s/files/1/0427/9926/8003/files/78807440538.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_off0000465d.bin
65f6bbc0b31c1fab08ba0fe1a46e4f978211cc144f04d22dbccd0882ee92690d
pdf-font-stream PDF embedded font (sfnt) at offset 0x465D 5328 bytes
font_01_sfnt_off00005848.bin
7f0d1f792e58c88e22a26b649173aa9f93c822e078544d3367be01198c81d6b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5848 9300 bytes