Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd0012228b9d9dff…

MALICIOUS

PDF

37.8 KB Created: 2020-08-20 02:05:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b98cd2e41f37b3b93f53f2b03a369164 SHA-1: 5d0a4c5125ab3636eb0dc3b1fbc48e69f480513b SHA-256: cd0012228b9d9dff79561eed6e683853f994eeefe8dd7cce0e1ac289cdf73698
150 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure, specifically 'ttraff.ru'. It also contains a large number of external PDF links, many hosted on Shopify, indicating a link farm. The primary malicious URL is 'https://ttraff.ru/pify?keyword=omron+h3y-+2+timer+datasheet', which likely serves as a gateway to further malicious content or phishing pages.

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.ru/pify?keyword=omron+h3y-+2+timer+datasheet
    • http://files.nightingaletrio.com/uploads/1/3/0/8/130874678/ligenuzeg.pdf
    • http://gefog.tlcsupportservices.org/uploads/1/3/1/8/131857152/bofusiro-fagazena.pdf
    • http://weloxiri.intothemothlight.com/uploads/1/3/0/7/130738964/9441716.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.pdf
    • https://cdn.shopify.com/s/files/1/0432/7194/6396/files/fifapojegiloxotafute.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1695/files/libros_para_colorear_por_numeros.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4340/files/diode_digital_logic_gates.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/59372700178.pdf
    • https://cdn.shopify.com/s/files/1/0428/4396/3548/files/17781834648.pdf
    • https://cdn.shopify.com/s/files/1/0432/0952/3355/files/tonabujozezikuxuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/2958/4282/files/situxifosoxurilewekarel.pdf
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/blogs_de_libros_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0432/3622/9278/files/bootstrap_form_design_w3schools.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_off000055cb.bin
32c5734e5f2f7f5c0da4697092540231c22e9bd62385797fb1dcddb89a209fb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55CB 5492 bytes
font_01_sfnt_off0000684b.bin
80d4a8967d93aabee5e54307657ec4ff92db6f31c153c34e1eb79e0d63da9502		 pdf-font-stream PDF embedded font (sfnt) at offset 0x684B 10060 bytes

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