Malicious PDF — malware analysis report

Static analysis result for SHA-256 32deb1ee0617a1e0…

MALICIOUS

PDF

45.9 KB Created: 2020-08-29 02:56:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af08d8810fd81ec399c468ef9de5e1a5 SHA-1: bea2aafb259609de8a4ad07e0994bec05eac2ff2 SHA-256: 32deb1ee0617a1e0984d4e558296a4049e81da8392afeb5c2648246d5b3a73ba
150 Risk Score

Malware Insights

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

The PDF contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm for SEO manipulation. Crucially, it also contains a direct link to 'ttraff.com', which is flagged as a malicious redirector. This indicates the document's primary purpose is to lure users to malicious infrastructure, likely for phishing or to download further malware. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=marantz+sr5011+reviews
    • https://cdn.shopify.com/s/files/1/0433/3296/0409/files/bosnisch_lernen.pdf
    • https://cdn.shopify.com/s/files/1/0461/7774/7097/files/17409753232.pdf
    • https://cdn.shopify.com/s/files/1/0432/0496/8603/files/39156719900.pdf
    • https://cdn.shopify.com/s/files/1/0435/4847/5541/files/accounts_payable_notes_in_sap_fico.pdf
    • https://cdn.shopify.com/s/files/1/0428/3367/4396/files/algebra_1_linear_equations_word_problems_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/6536/0034/files/draconic_template_d_d_3._5.pdf
    • https://static.usrfiles.com/ugd/b8c837_e279ad5ada5a4ffcb3250b435ef5c171.pdf
    • https://static.usrfiles.com/ugd/b8c837_97f85b41274d472883a1862f60b0a4f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_bedd8e080bf247bbb2d10ff3f6795f97.pdf
    • https://static.usrfiles.com/ugd/b8c837_32670b0590fe4fc5aa7cd4b384ef9b24.pdf
    • https://static.usrfiles.com/ugd/b8c837_ac8e0ff4e2d842cbb94004d9de6cce69.pdf
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/life_beginner_a1_student_book_full.pdf
    • https://cdn.shopify.com/s/files/1/0433/6038/7227/files/58038913612.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_off00006899.bin
6d96d101034e51f4d0bac4aee753c37e03d828a53453be42bbd1fc9021ab96bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6899 4852 bytes
font_01_sfnt_off00007935.bin
57362bd2911d6e150f6f3fa75891fbe27616a804bc32f6ee41c7a15044fcf299		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7935 10432 bytes
font_02_sfnt_off00009ce3.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CE3 4324 bytes

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