Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0fea9fe0197bf0…

MALICIOUS

PDF

41.2 KB Created: 2020-08-16 11:12:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5156b8d5e0df3614213579fa3e3919b4 SHA-1: e579ad7761d10cba928f1e469121b58d29d6144f SHA-256: 8e0fea9fe0197bf030194f1acca9a749a7ef2a70bc53691fed2fe8b1904d1ac6
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. The document body text, though garbled, contains the malicious URL, suggesting the document's purpose is to trick the user into visiting this URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the ttraff.com URL.

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.com/pify?keyword=log+properties+practice+worksheet
    • http://jibapuza.j-acevedo.com/uploads/1/3/0/8/130874671/movuwisi-samazipina-xevozazezadum.pdf
    • http://files.haciendasonoma.com/uploads/1/3/2/7/132740218/7130198.pdf
    • http://sovugozek.orbitalhoops.com/uploads/1/3/0/9/130969465/0e70704c2.pdf
    • https://cdn.shopify.com/s/files/1/0431/8032/7070/files/sheet_street_duvet_covers_2019.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/xafofuta.pdf
    • https://cdn.shopify.com/s/files/1/0438/3031/3122/files/45131272766.pdf
    • https://cdn.shopify.com/s/files/1/0434/6275/4461/files/zepujuxaroriwudetevirot.pdf
    • https://cdn.shopify.com/s/files/1/0436/1509/2893/files/rubawukojudubi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3676/2527/files/airline_stewardess_uniforms.pdf
    • https://cdn.shopify.com/s/files/1/0436/0624/5539/files/pivimu.pdf
    • https://cdn.shopify.com/s/files/1/0438/8736/2216/files/zeritibad.pdf
    • https://cdn.shopify.com/s/files/1/0438/2189/1746/files/break_stuff_limp_bizkit.pdf
    • https://cdn.shopify.com/s/files/1/0432/5448/1056/files/50116975022.pdf
    • https://cdn.shopify.com/s/files/1/0432/5959/2859/files/2016_gmc_acadia_driver_information_center.pdf
    • https://cdn.shopify.com/s/files/1/0433/5193/3078/files/18497973437.pdf
    • https://cdn.shopify.com/s/files/1/0432/3059/3192/files/zunufomaravawedibali.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_off0000625a.bin
53f5ef07c86c73dec64e6859eb234cfa1bdb2335d24e6e9a714775017a114775		 pdf-font-stream PDF embedded font (sfnt) at offset 0x625A 5260 bytes
font_01_sfnt_off00007457.bin
3e9cf0dcd3e5ec264b04cd4c2bf38a660ce0b6f2538e81307636df2db96e1cbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7457 10472 bytes

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