Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ccfcf93dd6b543f…

MALICIOUS

PDF

65.6 KB Created: 2020-08-31 09:09:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72ac4e6e3bf10c09da735595ac16aa34 SHA-1: 1f0b515bdc9b45ca4d5a381e002a2b14061e0285 SHA-256: 8ccfcf93dd6b543f23b7fabc4b190d011dc984892be5d1d2c65d9f6b83a6b353
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is associated with the keyword 'how much for ipad mini 2'. This indicates a likely phishing or scam attempt, aiming to lure users to malicious sites by posing as a product inquiry.

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.ru/wix?keyword=how+much+for+ipad+mini+2
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/48221301819.pdf
    • https://cdn.shopify.com/s/files/1/0433/8787/9587/files/9195432062.pdf
    • https://cdn.shopify.com/s/files/1/0428/6719/6063/files/dapodijuxasipinakep.pdf
    • https://static.usrfiles.com/ugd/0adedf_a044dae7b827496a8ae71ac762fb5959.pdf
    • https://static.usrfiles.com/ugd/b8c837_abb20bad16374a96ba6a072e9a25c470.pdf
    • https://static.usrfiles.com/ugd/e4bc37_9c3c7fc1acff409a9e795b40c909be2f.pdf
    • https://cdn.shopify.com/s/files/1/0437/5540/5466/files/jaguxaputizodavaxegukod.pdf
    • https://cdn.shopify.com/s/files/1/0429/6946/4991/files/9069092902.pdf
    • https://cdn.shopify.com/s/files/1/0428/9616/2972/files/the_adlard_coles_book_of_diesel_engines.pdf
    • https://cdn.shopify.com/s/files/1/0430/5459/6250/files/pigulidowelazazivo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6816/1176/files/pubamopijasux.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_off0000b594.bin
52dfaf66af7144b861ad351b7adde70c2e9a0cabd943532c2321d6e483f60d7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB594 5372 bytes
font_01_sfnt_off0000c7c5.bin
bf1f0a7a8b3a1e24642759bcb5d4c5ccf91ac57fba8f5c3500ea4fde4201d34b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C5 15748 bytes

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