Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ea7b14969084b5e…

MALICIOUS

PDF

39.5 KB Created: 2020-08-23 20:30:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 687c100907cbc9bd0d18ba414dbab82b SHA-1: e364718db11a39c39d0853a89bd43b15b44d5cbc SHA-256: 7ea7b14969084b5e85e1b4eda6de7908f85305bde74e68911058b5d6dd6ce8e5
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=trendsetter+font+free'. The document body, though heavily obfuscated, also contains this URL, suggesting it is a primary lure. The presence of many other links, predominantly hosted on shopify.com and other domains, indicates a broad attempt to distribute malicious content or phish users.

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=trendsetter+font+free
    • http://suloxa.learnporium.com/uploads/1/3/1/8/131872225/vogopepo-pilanos-rajoxoku-xopimivuro.pdf
    • http://files.beurownreligion.com/uploads/1/3/1/4/131452929/juzakesukoxare.pdf
    • http://files.bsocial.co.nz/uploads/1/3/0/7/130740196/4704211.pdf
    • http://files.180degrees.org/uploads/1/3/1/4/131406999/dimewozokol_kixanivizo.pdf
    • http://files.nc3wilkesboro.com/uploads/1/3/1/4/131407406/jujuramidejakot-xinibubabikonex-lesob.pdf
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/mikiledemumamunun.pdf
    • https://cdn.shopify.com/s/files/1/0431/4175/9138/files/jaweb.pdf
    • https://cdn.shopify.com/s/files/1/0433/9679/2471/files/asciidoctor_image_center.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xaxigeruver.pdf
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/sojujegoduxabudiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/7840/9639/files/nuluzemub.pdf
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/sikezufiseb.pdf
    • https://cdn.shopify.com/s/files/1/0435/3179/6634/files/the_c_programming.pdf
    • https://cdn.shopify.com/s/files/1/0432/3429/5966/files/53524152908.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/gapiwunirikinuramodefifaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/1354/4863/files/lei_simples_nacional_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/raxuwileguwujubafejitodi.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_off00005ce8.bin
e84e135d31745f8267002494acfc83ca40646b7a86799344a1c9f29d3d0b25d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE8 4608 bytes
font_01_sfnt_off00006c9d.bin
a2c0f38fbdb0b5bc1a7ceff13dfc26beeaaf4e9accf4b092f5c79a2e1fec2f3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9D 10812 bytes