Malicious PDF — malware analysis report

Static analysis result for SHA-256 d18d563eb32e33eb…

MALICIOUS

PDF

52.6 KB Created: 2020-08-29 23:09:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cd7d206045d492a6d16a644e4df054b SHA-1: 304163d8f773617fc15ab20250fd25798fe1bc81 SHA-256: d18d563eb32e33ebb24d9c0d02d57c6fab70a0978569af7a3e58b0330c12186b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of embedded links, with the primary one being a redirector. The document body contains the malicious URL and numerous other URLs, likely part of a link farm designed to obscure the malicious destination. The primary malicious URL is https://ttraff.cc/wix?keyword=affichage+coins+jeux+maternelle.

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/wix?keyword=affichage+coins+jeux+maternelle
    • https://cdn.shopify.com/s/files/1/0444/3412/9062/files/activated_sludge_process_wastewater_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.pdf
    • https://cdn.shopify.com/s/files/1/0435/5083/4847/files/87847059571.pdf
    • https://cdn.shopify.com/s/files/1/0429/4737/9356/files/vector_psd_templates_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8980/files/79243450702.pdf
    • https://static.usrfiles.com/ugd/b8c837_782299235530450c9058303eeaf824af.pdf
    • https://static.usrfiles.com/ugd/b8c837_64245302437a4c9886a89ccfd6744410.pdf
    • https://static.usrfiles.com/ugd/b8c837_88b9ef4220b64299b85ebb8981df6e3a.pdf
    • https://static.usrfiles.com/ugd/b8c837_f0d9ea0f57004c04b51958ec8cf844ae.pdf
    • https://static.usrfiles.com/ugd/b8c837_da0534fc26834392a6891e7b16b012dc.pdf
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/71300668398.pdf
    • https://cdn.shopify.com/s/files/1/0436/8121/8710/files/michelin_guide_vietnam_hanoi.pdf
    • https://cdn.shopify.com/s/files/1/0435/3864/5144/files/jisukuwuwamiziwo.pdf
    • https://cdn.shopify.com/s/files/1/0438/8870/5688/files/starcraft_2_mass_recall.pdf
    • https://cdn.shopify.com/s/files/1/0438/0770/3201/files/18792974454.pdf
    • https://cdn.shopify.com/s/files/1/0430/9535/9642/files/introductory_chemistry_4th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0443/4988/2524/files/autocad_2007_free_student_version.pdf
    • https://cdn.shopify.com/s/files/1/0427/4552/8487/files/pegasus_and_bellerophon.pdf
    • https://cdn.shopify.com/s/files/1/0438/5187/4466/files/absenteeism_research_study_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0434/8349/6600/files/xusametumojoreb.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075b7.bin
ed3b39f50aab61ca3dd8e7eeb7a11673cb081902396f2de5a6636499d5e6c731		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B7 5428 bytes
font_01_sfnt_off00008800.bin
6bfd47c60c161282331f86267656090a577da93c7b79e2dd88332c3dbc39787d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8800 12396 bytes
font_02_sfnt_off0000add0.bin
531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADD0 16312 bytes

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