Malicious PDF — malware analysis report

Static analysis result for SHA-256 f629fd41fd665184…

MALICIOUS

PDF

47.9 KB Created: 2020-08-11 02:02:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe9585f4dfaa97265bf1758212483741 SHA-1: b08ec3047e32c382e07365264de541cd8ad29bce SHA-256: f629fd41fd6651846c156cc49cd4f78bbdbbdac0abef0de4e4154e42b4223581
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. The document body, though partially corrupted, also contains this URL, suggesting the primary intent is to redirect the user to malicious content. The presence of many benign-looking Shopify links alongside the malicious ones is a common tactic to obscure the malicious intent.

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=seismic+design+and+analysis+of+underground+structures+pdf
    • http://varajesep.roof-ings.com/uploads/1/3/1/3/131383664/661ca8.pdf
    • http://files.susankennedy.org/uploads/1/3/1/4/131455903/3fa6813aa412c.pdf
    • http://files.oneceed.com/uploads/1/3/1/3/131382797/munexivu-gajej-wegizomu.pdf
    • http://kemuz.lifebiblestudies.com/uploads/1/3/0/8/130873810/banitexatigerololodi.pdf
    • http://files.designsbydinius.com/uploads/1/3/0/8/130814397/sodedavuz_vapevaxewitokov_fexufatores_tevodijapaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/1147/3571/files/ssc_stenographer_mock_test_paper.pdf
    • https://cdn.shopify.com/s/files/1/0437/9354/7424/files/670694334.pdf
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/12655462867.pdf
    • https://cdn.shopify.com/s/files/1/0439/8232/3870/files/blockchain_technology_books_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0430/9948/8410/files/nesazutixusuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/5095552589.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zurutadodusabexefiba.pdf
    • https://cdn.shopify.com/s/files/1/0439/4234/6907/files/85535239181.pdf
    • https://cdn.shopify.com/s/files/1/0429/2388/4711/files/84397725681.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/84_country_code.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e43.bin
78e32aa27b39aba1eb4eb6c9d84c60394b44f97a325567608711ba6cf25a5e83
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E43 5564 bytes
font_01_sfnt_off0000810d.bin
cc28d4c9d6e28d88339fd675372e73a9b32d2599f2fd94d2776810c34c5fe8cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x810D 10260 bytes
font_02_sfnt_off0000a41d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA41D 4324 bytes