Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4844ab6489add09…

MALICIOUS

PDF

44.1 KB Created: 2020-08-12 07:52:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46f1cf2fc3f7429609577733bc5a301a SHA-1: ed6e3b8c1c7c0ec0e9768dfa18637e78a78b964b SHA-256: d4844ab6489add092cf3e35cd4efe3bd95d13c57dd35a5ac38c8e1dea2a49d16
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to attract search engine traffic, with one primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the target URL, suggesting a lure to a malicious site. The heuristics indicate the PDF is acting as a redirector and a link farm, likely to obscure the final malicious destination.

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=automotive+industry+definition+pdf
    • http://kiwibari.newparanormalinvestigators.com/uploads/1/3/2/6/132683169/a7ee411.pdf
    • http://sasipe.exclamationservicesusa.com/uploads/1/3/1/1/131164250/wonas_dobuver_babepiruga.pdf
    • http://magavele.msmontagnon.com/uploads/1/3/1/6/131606289/kajunujaxasej.pdf
    • https://cdn.shopify.com/s/files/1/0433/9063/2101/files/jopadusukafavifovoxosuzat.pdf
    • https://cdn.shopify.com/s/files/1/0447/5289/6154/files/dieta_alcalina_recetas.pdf
    • https://cdn.shopify.com/s/files/1/0433/7165/9414/files/limarigunefudixo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/bofatuwulubitu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5920/7592/files/kegetopoja.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdf
    • https://cdn.shopify.com/s/files/1/0432/7935/1976/files/52215373030.pdf
    • https://cdn.shopify.com/s/files/1/0437/7581/9927/files/15757990267.pdf
    • https://cdn.shopify.com/s/files/1/0432/0450/9853/files/7850750063.pdf
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/fuzavuxofiron.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_off00005f46.bin
278c784acc211a763846d62ac5fd55ed8f9bd833bed14d21b697f0ecaf2b8709		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F46 4976 bytes
font_01_sfnt_off00007028.bin
78877de034100564caeb877a195ba5079ed77cbcd0c24b47f52777fec830753e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7028 10932 bytes
font_02_sfnt_off00009578.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9578 4324 bytes

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