Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bdeab944c28d501…

MALICIOUS

PDF

44.5 KB Created: 2020-08-22 13:47:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a05ad687b75d02637ac90ecc51d4c1e SHA-1: fd468a62025d18b185d6e6629072310ed30e58ba SHA-256: 9bdeab944c28d501cef4bbc75d0ae6bb986b17f780b1915625d21ba407248ad3
120 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Adjetivos en ingles y su significado pdf' and the malicious URL, suggesting a phishing or scam lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to spread 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.com/pify?keyword=adjetivos+en+ingles+y+su+significado+pdf
    • http://files.kwdavis.com/uploads/1/3/1/4/131452904/pasipoxupitezur.pdf
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/30034373186.pdf
    • https://cdn.shopify.com/s/files/1/0431/2137/7434/files/56681576545.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/90379225571.pdf
    • https://cdn.shopify.com/s/files/1/0428/4180/0860/files/96288318884.pdf
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/balanced_diet_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/2096/8351/files/pamomeputufarifapunadidan.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/logistica_administracion_cadena_de_suministro.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36103472339.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_off00005ec1.bin
b90cd6ed2877716b67d91aec197879f418757ac5be93d78252a6a3aae554b86a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC1 5336 bytes
font_01_sfnt_off00007118.bin
bb2485c645be15fb6042f46f2751e3425b4c111355189da009c22eab2099b5ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7118 11340 bytes
font_02_sfnt_off000095cf.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95CF 4324 bytes

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