Malicious PDF — malware analysis report

Static analysis result for SHA-256 c29f0695432d52b1…

MALICIOUS

PDF

32.6 KB Created: 2020-08-19 07:46:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a720bf05c5733ea2a7cb1e4d97a76e1 SHA-1: d6f8c3b40dcc3edcbd8bf943a922c4d2d6c5ab0a SHA-256: c29f0695432d52b1c6f5c4e113935420699c1c7008548812c59effe8c1813dec
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.cc/pify?keyword=funky+town+sheet+music+pdf'. The document body, though heavily obfuscated, contains text related to 'funky town sheet music pdf', suggesting a lure to disguise the malicious intent. The primary goal appears to be redirecting the user to malicious infrastructure.

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=funky+town+sheet+music+pdf
    • http://files.travelonlywithanneb.com/uploads/1/3/2/6/132695258/xonorejeves.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/sijisitolibizixubolake.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdf
    • https://cdn.shopify.com/s/files/1/0432/6113/2962/files/17118627107.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/kubenufesabesexakitulow.pdf
    • https://cdn.shopify.com/s/files/1/0437/4754/1153/files/macmillan_collocations_dictionary_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6090/3582/files/zilivadiduwitam.pdf
    • https://cdn.shopify.com/s/files/1/0429/2011/6387/files/70397707064.pdf
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/88371208266.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/dawedavatajad.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/xedusegexadekevudeniru.pdf
    • https://cdn.shopify.com/s/files/1/0433/7103/6822/files/rawulosor.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/8166177649.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_off00004388.bin
98150703cdac491df08d225ee207ee0233b041f7ef425bf36b8a47c1a4c78110		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4388 5272 bytes
font_01_sfnt_off00005577.bin
e2246596a18ec6637c62a9c6f504560f36542e1cb08abbca33a1b4956cab7bde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5577 9476 bytes

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