Malicious PDF — malware analysis report

Static analysis result for SHA-256 3567f1c654df4570…

MALICIOUS

PDF

43.1 KB Created: 2020-08-01 04:09:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57ee54bfe0e51dcca5f1c3915498bce6 SHA-1: 76c658042416dabe2cbedc372b792148fe76c9d3 SHA-256: 3567f1c654df457092deccb33c68b15e65662f79f8507e1785fe1faccfe0616b
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 of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.com/pify?keyword=1500+calorie+diabetic+diet', is identified as a malicious redirector. This suggests the document's purpose is to drive traffic to malicious infrastructure, likely for phishing or malware distribution, under the guise of providing dietary information.

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=1500+calorie+diabetic+diet
    • http://files.stevethenaturopath.com/uploads/1/3/1/3/131379246/9207416.pdf
    • http://files.texashistorystyle.com/uploads/1/3/0/7/130775862/kutovifinowukes_dawumab.pdf
    • http://files.jrsautospa.com/uploads/1/3/2/7/132710700/86fb1dba05c7.pdf
    • http://files.astaanaheim.org/uploads/1/3/0/7/130775361/eed15eba3ad9.pdf
    • https://cdn.shopify.com/s/files/1/0434/0298/5626/files/33865767070.pdf
    • https://cdn.shopify.com/s/files/1/0432/0726/2370/files/43071931127.pdf
    • https://cdn.shopify.com/s/files/1/0437/0972/6888/files/68380678778.pdf
    • https://cdn.shopify.com/s/files/1/0432/7027/5237/files/xodavejolegafopawo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0935/1578/files/23676889963.pdf
    • https://cdn.shopify.com/s/files/1/0430/0675/4970/files/57278218119.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdf
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/zafedepifol.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdf
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/barodinasonos.pdf
    • https://cdn.shopify.com/s/files/1/0434/4053/7750/files/78874362976.pdf
    • https://cdn.shopify.com/s/files/1/0428/0349/5071/files/26632849613.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_off00006c25.bin
c910cc9e3836ecd08d96e5c6e0ecb830b6dd7224c76c28705589d41d7e0195f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C25 5120 bytes
font_01_sfnt_off00007d9d.bin
9b91106e33ca41035cabb48064de7c57eb0c58c5f3b2ed000317fb12a0bc0915		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D9D 9924 bytes

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