Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c5e27cdd56ad079…

MALICIOUS

PDF

54.6 KB Created: 2020-08-15 04:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fdfe0051875971f7f5759ce4247d2b13 SHA-1: 1147ddecf4fa46f7512bce5fbba7dda44a34c7a6 SHA-256: 9c5e27cdd56ad0799ee4af192d9d726ca042ed55541e32e83b6e07fc787a04fb
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=cavernous+transformation+of+portal+vein+thrombosis'. This indicates the document is designed to redirect users to malicious sites. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, suggesting a broad distribution or SEO poisoning tactic. 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.cc/pify?keyword=cavernous+transformation+of+portal+vein+thrombosis
    • http://files.peterchaophotography.com/uploads/1/3/1/8/131871462/da3ed60491135b8.pdf
    • http://podilas.glenealylibrary.org/uploads/1/3/1/8/131856158/tukisuzuvanizepov.pdf
    • http://files.seyabookfest.com/uploads/1/3/2/7/132740764/suxasape-kirufasozekozi-mesobabibix-kafadotidijop.pdf
    • http://files.hoolahoopgreetings.com/uploads/1/3/0/7/130775633/a8c5b0689d.pdf
    • https://cdn.shopify.com/s/files/1/0431/4615/0039/files/sonepuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/3860/4450/files/lurubumatipedeko.pdf
    • https://cdn.shopify.com/s/files/1/0432/3701/5719/files/1382482623.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/4052822139.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/60478292245.pdf
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/80891663599.pdf
    • https://cdn.shopify.com/s/files/1/0440/2115/3957/files/eos_rebel_t3i_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/1386664240.pdf
    • https://cdn.shopify.com/s/files/1/0429/2807/9004/files/zizumivogoze.pdf
    • https://cdn.shopify.com/s/files/1/0441/3777/5256/files/40539099314.pdf
    • https://cdn.shopify.com/s/files/1/0429/8879/8111/files/evening_dress_sewing_patterns.pdf
    • https://cdn.shopify.com/s/files/1/0439/4886/7739/files/somez.pdf
    • https://cdn.shopify.com/s/files/1/0435/0862/9663/files/83986392108.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_off0000983b.bin
aa5d1d882eb3bfaff6013f7582887eec1e5484353896a0bac38b8f66e4b41e6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x983B 5244 bytes
font_01_sfnt_off0000a9dd.bin
18289373b36878145f64cb214152651a4f3f9c2f8aaa8432ab4df317b7388f31		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9DD 10436 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.