Malicious PDF — malware analysis report

Static analysis result for SHA-256 e006e81bceb24677…

MALICIOUS

PDF

54.8 KB Created: 2020-07-31 08:06:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66ac099df53da41dc647543125b468d5 SHA-1: 9d97e4bf7a69242860956d68b03cb4514ba99476 SHA-256: e006e81bceb246770f0b8d1ab9b6acedc62538e1417c8ea00622900c5199d915
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'acetazolamida mecanismo de accion pdf', suggesting a lure to trick users into clicking the malicious link. The PDF_SEO_LINK_FARM heuristic further supports the idea that this document is designed to drive traffic to external sites.

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=acetazolamida+mecanismo+de+accion+pdf
    • http://files.cajarycapital.com/uploads/1/3/2/6/132695343/2677966.pdf
    • http://files.innerlightworkshops.com/uploads/1/3/1/4/131438459/9855338.pdf
    • http://files.rootzwestbend.com/uploads/1/3/2/7/132741764/558f89180d04f8.pdf
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/54711336840.pdf
    • https://cdn.shopify.com/s/files/1/0439/2294/8251/files/zoxutusareto.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/vulovafipuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/bilerewakirase.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/78642037542.pdf
    • https://cdn.shopify.com/s/files/1/0432/3796/5979/files/retawivuzovobezidow.pdf
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/wimogiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/6862/8892/files/subigatexoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/2493/3287/files/wutupetafuwalaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/3644/1767/files/gikelazazabo.pdf
    • https://cdn.shopify.com/s/files/1/0435/1760/8090/files/53556947894.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2297/files/xakifozof.pdf
    • https://cdn.shopify.com/s/files/1/0427/7259/4844/files/davixoligiwonosenu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9415/5157/files/zedoda.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_off000099ee.bin
572867061dd642bbaf4603069dbead4be2006155467fe5d3ce0b12cc55ad0b24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99EE 5032 bytes
font_01_sfnt_off0000aaf7.bin
047edb156daee3f9b1e307a20faa8f505c929d33ebdf7b330f10c3e94f7fd7c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAAF7 10708 bytes

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