Malicious PDF — malware analysis report

Static analysis result for SHA-256 304c6f9c97774163…

MALICIOUS

PDF

37.8 KB Created: 2020-08-08 01:22:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62f61676ca44681ef2dc4a3c3522b234 SHA-1: 182effa8610feeef5483d984945492c7d8096cf3 SHA-256: 304c6f9c9777416378095b9460b256aa0cc88cf9ef149dfa1f22fbc78dab5867
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on Shopify, which is characteristic of SEO link farm abuse. The primary intent appears to be redirecting users to malicious infrastructure under the guise of providing a PDF 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.cc/pify?keyword=advanced+transport+phenomena+ramachandran+pdf
    • http://sezed.davisairrepair-nwa.com/uploads/1/3/1/4/131437736/selotototupezidefad.pdf
    • http://files.essentialsforseniors.com/uploads/1/3/1/8/131871593/kilumasa.pdf
    • http://nogivet.mrstiglitz.com/uploads/1/3/1/4/131453215/molerixumopafot.pdf
    • https://cdn.shopify.com/s/files/1/0428/6310/0070/files/81140973532.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/soreluseloxajakikolo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2429/3794/files/livro_candomble_de_angola.pdf
    • https://cdn.shopify.com/s/files/1/0434/4047/2214/files/bob_net_banking_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/5395/6766/files/xututel.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/2002/files/catalogo_andrea_botas_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/8005/5958/files/kilos_to_pound.pdf
    • https://cdn.shopify.com/s/files/1/0433/3636/8296/files/tarawolamudalevada.pdf
    • https://cdn.shopify.com/s/files/1/0435/3343/5032/files/free_dale_carnegie_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/4138/0759/files/nutritional_assessment_questionnaire.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35117459625.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_off00004a34.bin
a49b87bc1d8416885e0fad7bd8ca96ac5f97530880629097be9ab28328c94157
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A34 5152 bytes
font_01_sfnt_off00005b84.bin
b90ae6fda38782f1005dcbb72063a6c2a1eb09ac89007cbc37a0fe11057264e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B84 9576 bytes
font_02_sfnt_off00007c29.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C29 4324 bytes