Malicious PDF — malware analysis report

Static analysis result for SHA-256 d794cc4b8c66b06f…

MALICIOUS

PDF

34.5 KB Created: 2020-08-18 22:07:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 868718060ad7a4a171c5e1ba05756006 SHA-1: 814f7726078434db4703adb563c366327bf7cf3d SHA-256: d794cc4b8c66b06fe2c96203c516aa93bb8f0c77835a2b6034027eb038c50108
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the primary heuristic identifying it as a PDF link farm. One of the embedded URLs, 'https://ttraff.com/pify?keyword=tesla+effingham+performance+center+august+3', is flagged as a malicious redirector. The document body contains garbled text but includes the same Tesla-related keyword found in the malicious URL, suggesting a lure. The presence of numerous links to external PDFs, many hosted on Shopify, indicates an attempt to manipulate search engine results.

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=tesla+effingham+performance+center+august+3
    • http://files.beamstudioart.com/uploads/1/3/2/7/132740338/f1a88b33.pdf
    • http://files.voluntarysectorgateway.org/uploads/1/3/0/7/130739621/gipumida-zekakuv.pdf
    • http://files.new2ufashions.net/uploads/1/3/1/6/131636766/xapuwene.pdf
    • http://files.rentfloridahomes.com/uploads/1/3/1/3/131384401/kinuvulu-sepamabuja.pdf
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/used_chipboard_sheets_for_sale.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/8785445082.pdf
    • https://cdn.shopify.com/s/files/1/0432/3010/1668/files/88044187259.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/artie_shaw_clarinet_method.pdf
    • https://cdn.shopify.com/s/files/1/0432/4445/4051/files/77614006721.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/bexuvobipagevovusubepuz.pdf
    • https://cdn.shopify.com/s/files/1/0430/1773/2259/files/simazisedi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6986/6141/files/40913497022.pdf
    • https://cdn.shopify.com/s/files/1/0428/8089/3084/files/ragapa.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_off000049e1.bin
84faaf84183fc45fc6767585e83e1929614ca1a1a80a11a0f730ee29fd960fda
pdf-font-stream PDF embedded font (sfnt) at offset 0x49E1 5540 bytes
font_01_sfnt_off00005c90.bin
0bcf8816f8316bfd0cb0c8350fb2f82afac99773f3abd7a93a81786aa866af7b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C90 9584 bytes