Malicious PDF — malware analysis report

Static analysis result for SHA-256 e20c40dfa6e1b2db…

MALICIOUS

PDF

42.8 KB Created: 2020-08-08 19:37:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7908d07727c01e2d310c8a25edf6fa94 SHA-1: 3696f82827c2b732b60beacf1e0e7cd03868e0ce SHA-256: e20c40dfa6e1b2dbf189651fd8a2be68d5615e884563df8533a75bb30c691076
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the document links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=ellen+macarthur+foundation+circular+economy+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. 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.ru/pify?keyword=ellen+macarthur+foundation+circular+economy+pdf
    • http://files.oathofapearl.com/uploads/1/3/2/6/132695213/rebuwowewaduwus-wudasokaf-jekiwup.pdf
    • http://files.cvillematerials.com/uploads/1/3/0/8/130814676/nafuwobiwewarutosa.pdf
    • http://files.abdct.com/uploads/1/3/0/8/130873997/6198605.pdf
    • http://dojetox.josiemusicawards.com/uploads/1/3/2/6/132680813/7147070.pdf
    • https://cdn.shopify.com/s/files/1/0434/2090/9718/files/47197208790.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/xazet.pdf
    • https://cdn.shopify.com/s/files/1/0435/9349/8787/files/principles_of_business_information_systems_3rd_edition_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/a_field_guide_to_american_houses.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94323725826.pdf
    • https://cdn.shopify.com/s/files/1/0436/3105/0915/files/18338573602.pdf
    • https://cdn.shopify.com/s/files/1/0434/6776/7970/files/15774056021.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1860/files/rozemukizaxikupewinezutu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vemuvuferakodumi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7107/7526/files/81926368913.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/229905594.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_off00006964.bin
255d08f78bd2f7f7fa19fe818f2e5602bc75091d908f625758eaea9eb2de545d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6964 5276 bytes
font_01_sfnt_off00007b39.bin
da54b1e277c4f2ef90f0f90027f16928b2945e0dd47ebe5b5135f2adec961221		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B39 10132 bytes

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