Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbaed3bfaf787b2c…

MALICIOUS

PDF

45.5 KB Created: 2020-08-19 15:16:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e8d8f143670634b18e61852c8b8f21e SHA-1: 730a840ce4e7d22e34043f5f0cd866d97ba3bd00 SHA-256: dbaed3bfaf787b2c4a821b77e7aefc6cd9bb030542124e1355a8ab211854961d
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=online+pdf+editor+add+pages'. Additionally, it exhibits a PDF link farm behavior, embedding numerous links, many of which point to benign Shopify URLs but include a suspicious one. The document body contains obfuscated text but also includes the malicious URL, reinforcing the lure. No scripts were extracted from this sample.

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=online+pdf+editor+add+pages
    • http://xagof.accurus.ch/uploads/1/3/0/7/130776089/joxumeza-wesevobageta-leribagose.pdf
    • https://cdn.shopify.com/s/files/1/0428/7220/9574/files/fipivopijag.pdf
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/63441936900.pdf
    • https://cdn.shopify.com/s/files/1/0436/8538/0246/files/loripuvavifilulizometu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vijob.pdf
    • https://cdn.shopify.com/s/files/1/0431/6315/6641/files/13361969772.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/after_effects_text_animation_tutorials.pdf
    • https://cdn.shopify.com/s/files/1/0432/7899/1518/files/2._1._4_super_cleanup_karel_answer.pdf
    • https://cdn.shopify.com/s/files/1/0449/5376/3999/files/django_templateview_vs_view.pdf
    • https://cdn.shopify.com/s/files/1/0435/3920/2207/files/vfr_navigation_log.pdf
    • https://cdn.shopify.com/s/files/1/0440/1538/6789/files/bbmp_tax_form_v.pdf
    • https://cdn.shopify.com/s/files/1/0432/6139/5102/files/toxejegox.pdf
    • https://cdn.shopify.com/s/files/1/0433/3669/5959/files/venimaxinipusuxutakopurim.pdf
    • https://cdn.shopify.com/s/files/1/0432/5516/9182/files/xeselewofav.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5460/files/fetusidekinanugaro.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.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_off0000729c.bin
17c441105494fb7a2496e8c0d14f355e0b44b11520bfc361723a6a9acef22f1b
pdf-font-stream PDF embedded font (sfnt) at offset 0x729C 5236 bytes
font_01_sfnt_off00008478.bin
d287c2c120e7db6d5de738ad96d0427585ad686e30580ea023320f12e18a49c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8478 10736 bytes