Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecea029fa9cf4b2f…

MALICIOUS

PDF

33.0 KB Created: 2020-08-03 04:44:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93d2f46ca86ed61a34b2e2df73b512db SHA-1: a7bc9af1ab26d1efb6e2241f88f751002e07804e SHA-256: ecea029fa9cf4b2fdcc05615f7cef46130f72389fa370920e3714e096a494983
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=simon+xt+manual' which is flagged as a malicious redirector. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted from this sample.

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/pify?keyword=simon+xt+manual
    • http://files.stmwvenue.co.uk/uploads/1/3/0/7/130739814/8272277.pdf
    • http://files.lindamcbrideart.com/uploads/1/3/1/4/131437254/pixogapaj.pdf
    • http://xevofolan.septorcorp.com/uploads/1/3/1/8/131856318/menok.pdf
    • http://files.thedropuk.co.uk/uploads/1/3/0/7/130775871/metokefu.pdf
    • http://files.tenzafansite.com/uploads/1/3/2/6/132681660/powoduni.pdf
    • https://cdn.shopify.com/s/files/1/0437/6703/8106/files/pipapizazur.pdf
    • https://cdn.shopify.com/s/files/1/0437/7100/3037/files/noforebetugosefizemejomoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/2914/2426/files/37521866751.pdf
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/18534293937.pdf
    • https://cdn.shopify.com/s/files/1/0446/2844/3299/files/how_to_clear_autofill_chrome.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/56029025547.pdf
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/79499553398.pdf
    • https://cdn.shopify.com/s/files/1/0434/8333/2772/files/sosulumejitejaj.pdf
    • https://cdn.shopify.com/s/files/1/0438/8726/3899/files/85382061182.pdf
    • https://cdn.shopify.com/s/files/1/0429/9961/1555/files/vexefov.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_off0000458c.bin
5902e4b39be087b8f3abd12dc5dd93349380c36d6622c11b08de72b5081b9529		 pdf-font-stream PDF embedded font (sfnt) at offset 0x458C 4728 bytes
font_01_sfnt_off00005590.bin
2a1cf29456a62a8fa4f981b5aa1912bbf1c4faa0757d70be816da571af609e6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5590 9944 bytes

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