Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fb00cbba9b8ad63…

MALICIOUS

PDF

52.3 KB Created: 2020-08-09 00:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61ae440644670fc25e78ad26ef0be64a SHA-1: c1511960b649244f9e67a51fc9dbbcae96da8355 SHA-256: 1fb00cbba9b8ad63941795f32aea0f38bfbf8da79cb17e5b5dbf03cf442530e0
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The primary malicious URL identified is https://ttraff.cc/pify?keyword=animal+wise+virginia+morell+pdf, which is likely used to lure users to malicious content. No scripts were extracted from this sample.

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=animal+wise+virginia+morell+pdf
    • http://piwalusis.shopverjus.com/uploads/1/3/0/9/130969465/24ddd8f2.pdf
    • http://files.karataylorteacherfit.com/uploads/1/3/0/7/130740596/9722941.pdf
    • http://files.hitchhouseusa.com/uploads/1/3/0/7/130776590/644949.pdf
    • https://cdn.shopify.com/s/files/1/0429/3761/4499/files/cateter_umbilical_cuidados_de_enfermeria.pdf
    • https://cdn.shopify.com/s/files/1/0431/7619/8305/files/dimagekubu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/20816068680.pdf
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/goreruwutotote.pdf
    • https://cdn.shopify.com/s/files/1/0433/4593/6534/files/99962830610.pdf
    • https://cdn.shopify.com/s/files/1/0433/8266/9464/files/sorilisomopinokesabani.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/zipebabamuwuruzogug.pdf
    • https://cdn.shopify.com/s/files/1/0434/5892/0605/files/81039290584.pdf
    • https://cdn.shopify.com/s/files/1/0437/0432/0154/files/jopigumexiketufutedug.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/gowoseni.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/
    • https://cdn.shopify.com

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ede.bin
944f1c6322d22e298b5dfdfb31a3363181cf0320adbf64cf1a7deea0bdacbf77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EDE 5500 bytes
font_01_sfnt_off0000a195.bin
322e20c014ee2dcb2438a9864dc5263914b0b6850c1c376b87f1b30513b08ab9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA195 10120 bytes

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