Malicious PDF — malware analysis report

Static analysis result for SHA-256 92569b69d9a4fbd4…

MALICIOUS

PDF

36.7 KB Created: 2020-08-15 04:58:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bea5512720a3a19ee4e343b9e109e938 SHA-1: d86a9416c292f59e69fd25840ba65737a872fb32 SHA-256: 92569b69d9a4fbd4d3529086c5511b89a1a2c863aff3331d6ace689de1f203cf
150 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Canon 700d firmware 1.1.3' and embedded URLs, suggesting a lure to trick users into downloading malicious content. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many of which are likely malicious or part of a link farm. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=canon+700d+firmware+1.+1.+3
    • http://sobikejo.jimwarren-director.com/uploads/1/3/1/4/131437423/vafixogitere.pdf
    • http://fesoluvef.crowdensatz.com/uploads/1/3/1/3/131381464/firikozoxibobot.pdf
    • http://files.texasboutique2020.com/uploads/1/3/1/4/131413718/molazeburetevugep.pdf
    • http://nitaxix.renfestjeweler.com/uploads/1/3/0/7/130739192/9668073.pdf
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/kebotajevabaguwijezukup.pdf
    • https://cdn.shopify.com/s/files/1/0432/7997/4556/files/76978809475.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/acta_constitutiva_asociacion_civil.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lalosukiwafigoledexefes.pdf
    • https://cdn.shopify.com/s/files/1/0431/2399/8874/files/dipuvisejejokutipop.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65788935473.pdf
    • https://cdn.shopify.com/s/files/1/0437/4344/5141/files/bofurodazujizuxanotiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/6336/2204/files/fawamojodido.pdf
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/96962368819.pdf
    • https://cdn.shopify.com/s/files/1/0430/8900/2650/files/72098433967.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_off0000507f.bin
3d6c0fc31e50b14b108d06b12fa7c52c7d836fc2159a388ecd84ba13d301c82a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x507F 5312 bytes
font_01_sfnt_off0000629f.bin
0d29d1f41d389a7d95917b417cc3c582874c94c5d01f34d59f146b96a2786dce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x629F 10408 bytes

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