Malicious PDF — malware analysis report

Static analysis result for SHA-256 26ea31688896c354…

MALICIOUS

PDF

45.2 KB Created: 2020-08-15 08:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b05787a457d9ad625b26f228505df3cf SHA-1: 2888167976ae9215acbdffc290bc255ac3460f41 SHA-256: 26ea31688896c35454381c373170c55dcb77665ae2a453eca0e226439a82573c
150 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though partially corrupted, contains the target URL and benign-looking product search terms, suggesting a lure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=white+platform+sneakers+2019
    • http://files.mairibudreau.com/uploads/1/3/0/7/130776864/ziwawajobigogefivane.pdf
    • http://files.artgoop.com/uploads/1/3/0/7/130775543/wuzifinagavu.pdf
    • http://kesav.playful-pedagogy.org/uploads/1/3/0/8/130813108/mawitugogisuze_toped.pdf
    • http://files.mountaintreecare.com/uploads/1/3/2/7/132740352/37ffe64ac62d.pdf
    • https://cdn.shopify.com/s/files/1/0428/4976/3494/files/51856832989.pdf
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/eu_creio_pequeno_catecismo_catolico.pdf
    • https://cdn.shopify.com/s/files/1/0434/3136/2725/files/backroom_casting_couch_compilation.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5285/files/ziterotusefixapomadude.pdf
    • https://cdn.shopify.com/s/files/1/0434/0455/8488/files/zogalasaku.pdf
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/barezinefavilu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9114/8454/files/1295762222.pdf
    • https://cdn.shopify.com/s/files/1/0433/4472/4133/files/15641493768.pdf
    • https://cdn.shopify.com/s/files/1/0433/5730/7039/files/rozalovonefafaterulo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3275/5875/files/windansea_surf_cam.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/xeturasebuvamogixuxok.pdf
    • https://cdn.shopify.com/s/files/1/0433/5091/7269/files/pdf_to_word_converter_online_free_zamzar.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_off000070fc.bin
c3c9f9a0c95b3493d8ab70aa4a4ee4357d3dea93f19f581484b60bb206eda589		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70FC 5700 bytes
font_01_sfnt_off0000844a.bin
2012ebab6797837937b01aed63222a0ea2096cf8d848ec17531b64004ebffcc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x844A 10528 bytes

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