Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4d03e372fe47a3f…

MALICIOUS

PDF

48.3 KB Created: 2020-08-17 17:18:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 801284ee9a9498e310fd0b79e508a688 SHA-1: d80aeeff593b8803ca583ece445ef3385bc89175 SHA-256: e4d03e372fe47a3f33d6d1a2e9609d0f42bcc99418c8da7b4a7d24ab80d3b463
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to a URL that is part of a link farm. The document body, though heavily obfuscated, contains the same redirector URL and a reference to 'wwe smackdown live results bleacherreport', suggesting a lure. The PDF also contains a large number of embedded links, many hosted on Shopify, indicating a potential SEO poisoning or link farm strategy to distribute malicious content.

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=wwe+smackdown+live+results+bleacherreport
    • http://files.nataliebrite.com/uploads/1/3/2/6/132696500/nuvukijuwiwu.pdf
    • http://gexag.rossvillelodge318.com/uploads/1/3/0/7/130739048/b98b7.pdf
    • http://files.drjules.com/uploads/1/3/0/9/130969938/3de8bf2d087.pdf
    • https://cdn.shopify.com/s/files/1/0431/3117/5063/files/fixajexurepidodalefu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8930/files/vofijili.pdf
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/julevije.pdf
    • https://cdn.shopify.com/s/files/1/0448/0552/1559/files/boolean_search_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0433/9286/0327/files/luluzuxadoweb.pdf
    • https://cdn.shopify.com/s/files/1/0437/1618/2184/files/pdf_watermark_remover_apk.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lobusine.pdf
    • https://cdn.shopify.com/s/files/1/0447/6023/6183/files/causative_passive_exercises_eso.pdf
    • https://cdn.shopify.com/s/files/1/0433/8538/9206/files/catherine_lim_little_ironies_pdf.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_off00007e7d.bin
0dc8ea3fbe979415dcc4f4a5d5ee5c02433e0b998fc991d3c8ea33cca50d5afc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7D 5680 bytes
font_01_sfnt_off000091bb.bin
f30a0a74a24690afb2e49364e2da697722d6bf54de5c47833f464f86de3955b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91BB 10192 bytes

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