Malicious PDF — malware analysis report

Static analysis result for SHA-256 47689d5eca80baac…

MALICIOUS

PDF

46.7 KB Created: 2020-08-19 20:49:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 586384ea615c739bec41d61fd1b26496 SHA-1: 5ee3ea070233c77433f681e879b397590e66f361 SHA-256: 47689d5eca80baac3eafe9195156125c760a60fdc7f4e2d351b1292df1beeb32
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, identified as a PDF link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=instax+wide+300+manuale+italiano', is flagged as a malicious redirector. The document body contains garbled text along with some URLs, suggesting an attempt to disguise the malicious intent. The presence of a link farm and a malicious redirector indicates a likely SEO poisoning or content redirection attack.

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=instax+wide+300+manuale+italiano
    • http://jezezotat.westervilletherapy.com/uploads/1/3/2/6/132683286/wafutakajuxobop_jamamodamuw_bujoluto_nasopuvo.pdf
    • http://files.luxeymaison.com/uploads/1/3/2/6/132695329/wolosi.pdf
    • http://fufisasuk.redkora.com/uploads/1/3/1/4/131407089/9123867.pdf
    • https://cdn.shopify.com/s/files/1/0434/6878/3782/files/25123512120.pdf
    • https://cdn.shopify.com/s/files/1/0432/8049/8848/files/tabewoguworelatulufeva.pdf
    • https://cdn.shopify.com/s/files/1/0431/0761/4882/files/mifesetekigare.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/dukozizerofa.pdf
    • https://cdn.shopify.com/s/files/1/0427/4785/5004/files/convert_radians_to_degrees.pdf
    • https://cdn.shopify.com/s/files/1/0433/4937/7192/files/0114_que_banco_es.pdf
    • https://cdn.shopify.com/s/files/1/0430/5967/5293/files/78145337655.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5023/files/54811345084.pdf
    • https://cdn.shopify.com/s/files/1/0449/5376/3999/files/cecilia_software_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/8341/5204/files/nafapesa.pdf
    • https://cdn.shopify.com/s/files/1/0432/4478/1735/files/sugisumuvizanit.pdf
    • https://cdn.shopify.com/s/files/1/0432/9085/3541/files/60600342980.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/xolagerebanutopawiso.pdf
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/29570675937.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_off000078e8.bin
b1a66350fd5c7c23d91d340cb117153d0720ec5dde125262a74232a37af7fd2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78E8 5276 bytes
font_01_sfnt_off00008ad3.bin
9a10e06ead67b24e0082f8428ee7149afef386479abc3d14d32c650dc6cd98ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD3 10412 bytes

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