Malicious PDF — malware analysis report

Static analysis result for SHA-256 da9283b54ee50709…

MALICIOUS

PDF

35.2 KB Created: 2020-08-01 17:39:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 694af4d35670db3dcb1483019e35d30d SHA-1: dbac1650afa0f99244c87df06b7a5c7a10ae12d4 SHA-256: da9283b54ee507098a63ac09450abe3b44d13afa32385d0f88d80af8f51d9752
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=derivatives+markets+mcdonald+solutions+pdf', is identified as a malicious redirector. The document body itself contains garbled text but includes the same URL, suggesting the primary purpose is to trick the user into clicking the malicious link.

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=derivatives+markets+mcdonald+solutions+pdf
    • http://files.bellamymassagetherapykelowna.com/uploads/1/3/0/8/130874012/vozux_tixavom.pdf
    • http://files.that1thought.com/uploads/1/3/2/8/132814272/4658041d.pdf
    • http://files.draw-fancy-hearts.com/uploads/1/3/2/6/132682113/7b2da2d48e.pdf
    • http://files.helenmcwilliam.com/uploads/1/3/1/4/131453592/402e247d33.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdf
    • https://cdn.shopify.com/s/files/1/0430/3706/5370/files/63846216312.pdf
    • https://cdn.shopify.com/s/files/1/0433/8135/8753/files/44221928869.pdf
    • https://cdn.shopify.com/s/files/1/0433/6350/0197/files/nutevoterubanuweboxugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6189/4565/files/judegojujanaxesujafowus.pdf
    • https://cdn.shopify.com/s/files/1/0432/4248/7972/files/free_fishing_lure_sample.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7831/files/nowedominovatakimeras.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdf
    • https://cdn.shopify.com/s/files/1/0431/3668/0102/files/26456758368.pdf
    • https://cdn.shopify.com/s/files/1/0433/6418/8312/files/tivizatuzowibov.pdf
    • https://cdn.shopify.com/s/files/1/0443/4133/0076/files/angularjs_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/2644/0607/files/fixumotalakas.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/binoluso.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_off00004954.bin
4f31cffc48aeff8546ca9a03393bfa8a5dcdc95ce56a0d4dcd127134600ee398		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4954 5424 bytes
font_01_sfnt_off00005bbf.bin
dd51182905d09add340bfcea3a5b4496cfa8fb1aa14b80e0cc02f75050ede80a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBF 10076 bytes

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