Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae64e886396d868f…

MALICIOUS

PDF

42.9 KB Created: 2020-08-18 13:02:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9034731578d6a15f0cf57b74fc8ad8fb SHA-1: 9fdd42333034fc0c4138f4bc6c7ba797f232461f SHA-256: ae64e886396d868fce2d01c1f9f3a94a1368cee12cd8fcfd8851ab19f4540732
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, includes the URL that triggers the malicious redirector. This suggests a phishing or redirection attack aimed at leading the user to 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.ru/pify?keyword=geospatial+analysis+a+comprehensive+guide
    • http://files.samtoth.com/uploads/1/3/1/3/131384636/vexabizikonut_badexexiwovidol_dimonelum_risipiriduvobef.pdf
    • https://cdn.shopify.com/s/files/1/0437/1070/9915/files/gigumikiborobipu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8060/6111/files/pukizujekefe.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1702/files/kaxezikolabevudedejukaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/1906/7815/files/zapifenefu.pdf
    • https://cdn.shopify.com/s/files/1/0439/4477/1739/files/automatismos_industriales_alfaomega.pdf
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/pobiwineken.pdf
    • https://cdn.shopify.com/s/files/1/0437/6661/2130/files/aavin_milk_price_list_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/0649/1797/files/jokifumutejupote.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6514/files/fanona.pdf
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/66980641364.pdf
    • https://cdn.shopify.com/s/files/1/0437/9649/6544/files/jadudowasi.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_off000069c6.bin
ba639ce71abcb2e0ed474b2503a4e7c0fa4d7cf330ba896b21e1cd804514be03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69C6 5680 bytes
font_01_sfnt_off00007cf5.bin
e396567bd8c5c30cdeddf58a72c2fb62538965cad9c13412242095bad86cb78e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF5 9944 bytes

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