Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ee3174143701b68…

MALICIOUS

PDF

44.6 KB Created: 2020-08-29 00:57:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 755b604247a17bdd87e9c0a7a8522f55 SHA-1: 30a2a669be20c21d563aba21b87708ad5b8d8263 SHA-256: 2ee3174143701b68986efdd66a8d5c680f9aa37b9040911b0dccb6ad801b0d15
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/wix?keyword=serpientes+y+escaleras+dibujos', points to a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other PDF links, many hosted on shopify.com, indicates a strategy to appear as legitimate content while directing users to malicious infrastructure.

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/wix?keyword=serpientes+y+escaleras+dibujos
    • https://cdn.shopify.com/s/files/1/0431/6777/6919/files/94192809194.pdf
    • https://cdn.shopify.com/s/files/1/0432/2338/4219/files/15136762475.pdf
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/jidutigizep.pdf
    • https://static.usrfiles.com/ugd/b8c837_67eb5d5703fc4132aa067bcf59a9372d.pdf
    • https://static.usrfiles.com/ugd/b8c837_55bf3f6d318a4a059be0e1e5e90bd68c.pdf
    • https://static.usrfiles.com/ugd/b8c837_0a961815d397488b9b84fdf2fc6b2692.pdf
    • https://static.usrfiles.com/ugd/b8c837_ebaa5da43e824dd68ca5ff8a5f2a29fc.pdf
    • https://cdn.shopify.com/s/files/1/0438/3988/1373/files/milusewenosiw.pdf
    • https://cdn.shopify.com/s/files/1/0434/7641/8720/files/shipley_associates_proposal_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/7645/9422/files/pagalazokarorupujuzibi.pdf
    • https://cdn.shopify.com/s/files/1/0430/3041/3475/files/vukedanaxutofafibobeko.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f90.bin
4d802cddace11404f5b95f0496576358c4af8dcffcaf0214621ede8fdfb3e80a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F90 5368 bytes
font_01_sfnt_off000071cc.bin
e39e58fc70c32def188732e788ba9dcf3d4875b80cecdcd0e160c262dc87acbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71CC 11148 bytes
font_02_sfnt_off00009647.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9647 4324 bytes

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