Malicious PDF — malware analysis report

Static analysis result for SHA-256 be57d90c85c190fd…

MALICIOUS

PDF

49.3 KB Created: 2020-08-06 10:09:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fa19b879732e822091593d2f88a4e61 SHA-1: e3f5e358abe6fab6ff2eb26ef43843ed89d29a69 SHA-256: be57d90c85c190fd2268e8b321dbcf50d24a12d6ec502097f0d5700dd022d096
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous links, many pointing to Shopify domains, but one critical link directs to 'ttraff.com', identified as a malicious redirector. The document body, though heavily obfuscated, contains the string 'Botany notes pdf for upsc' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm and a malicious redirector indicates a phishing or malware distribution attempt.

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=botany+notes+pdf+for+upsc
    • http://rofax.crueltheatrecompany.com/uploads/1/3/0/7/130775129/pujaxodezekubezun.pdf
    • http://files.ohmylashuk.co.uk/uploads/1/3/1/3/131398268/zigolawamu-lupaxa.pdf
    • http://files.mccordchapman.com/uploads/1/3/0/7/130738889/3236573.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/18126962834.pdf
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/zozaji.pdf
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/book_wings_of_fire_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/vifurikebovomo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/72914040838.pdf
    • https://cdn.shopify.com/s/files/1/0433/9718/5701/files/gexegave.pdf
    • https://cdn.shopify.com/s/files/1/0434/1268/4967/files/29078634794.pdf
    • https://cdn.shopify.com/s/files/1/0433/6327/0815/files/83520226997.pdf
    • https://cdn.shopify.com/s/files/1/0431/6925/1487/files/lekakubuzagifajepilokunin.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/s/files/1/0434/0816/2974/files

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000833b.bin
c1882d2d82c121ecd29692ec071c890e613b69483cafef18a9880143895eee8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x833B 5268 bytes
font_01_sfnt_off00009544.bin
c2f42f3f3702198708f582746a01d098203163617f8a76f952e1ac1e89826e28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9544 10244 bytes

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