Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02ffa55aafa82cb…

MALICIOUS

PDF

63.1 KB Created: 2020-08-29 11:22:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e6cd4720b1d944faad53f1c6415871b SHA-1: 2ab9fdf70a1ea432f02cc99fe01822b1cd2ce08e SHA-256: c02ffa55aafa82cbf6ade88afeb0258d61727221bb8895d5a67eeb8700027ff0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to drive traffic to malicious infrastructure. The primary malicious URL identified is ttraff.com, which is likely used to obscure the final destination.

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/wix?keyword=advent+hymnal+pdf
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/reference_letter_template_doc.pdf
    • https://cdn.shopify.com/s/files/1/0433/3908/8027/files/grand_central_terminal_map.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/raruletojiwiparufufikozez.pdf
    • https://cdn.shopify.com/s/files/1/0431/7875/4199/files/18928493882.pdf
    • https://static.usrfiles.com/ugd/b8c837_d7a06a31749b4e9e8983b609aa762230.pdf
    • https://static.usrfiles.com/ugd/b8c837_daf4ec05f5bf402faf6d38e30f2777ea.pdf
    • https://static.usrfiles.com/ugd/b8c837_eede3ab716d54fe9b473468c1b025f2a.pdf
    • https://static.usrfiles.com/ugd/b8c837_209cea2bae7245a0a6236b62b357853e.pdf
    • https://static.usrfiles.com/ugd/b8c837_006d5a0a982742478c06803b5a634c69.pdf
    • https://cdn.shopify.com/s/files/1/0436/0051/1138/files/logejemewo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0894/1467/files/pathfinder_beginner_box.pdf
    • https://cdn.shopify.com/s/files/1/0432/5877/3662/files/79076967976.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_off0000af73.bin
f4a020a4da31c2378070a39cda7d1adb1f86d4f658301aa0d4ba67388d1b85bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF73 5156 bytes
font_01_sfnt_off0000c0e9.bin
bba27e503c6f5099addc8d67c64c8be4c03025988ba4aadea6b087f1d5901939		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0E9 15324 bytes

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