Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3e12e4c9b1cd4eb…

MALICIOUS

PDF

52.0 KB Created: 2020-08-12 15:03:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63582be62c3b19a53ee45bc048209f46 SHA-1: 9c2505b59dc56957a1869ebbea34b42327c1f27c SHA-256: a3e12e4c9b1cd4eb37bfc91e57f2f5302ba7c979a409bcf757c93e622ea841f9
194 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, many of which point to a link farm hosted on Shopify. One of the primary links, https://ttraff.cc/wb?keyword=vaporesso%20luxe%20skrr%20manual, is identified as a malicious redirector. This suggests the document is designed to trick users into clicking these links, likely leading to malicious content or further compromise. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact final payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/wb?keyword=vaporesso%20luxe%20skrr%20manual In PDF document text
    • http://files.garykitecomputerservices.com/uploads/1/3/2/7/132712005/6173644.pdfIn PDF document text
    • http://files.lknailsandbeauty.co.uk/uploads/1/3/0/8/130814225/6f3ab465.pdfIn PDF document text
    • http://files.jbietola.com/uploads/1/3/0/8/130874120/265214.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7708/2019/files/wumejadibema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1817/3086/files/nenewebon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0152/0029/files/kokogefapejidaxufom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6091/9446/files/74307996912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/central_park_new_york.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/xonumeraj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3134/7868/files/woleviwirezilovomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/40080786271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6633/4111/files/affective_commitment_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/23865955117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/composite_materials_by_kk_chawla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/bufevijulalifisinupevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/IMAGEFAP._COMHTTPS_WWW._GOOGLE._COM.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7041 4816 bytes
SHA-256: e6a947c162445f381a124550b6ae6362666a44d61c5f0b21b17fbfaacd308143
font_01_sfnt_off00008082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8082 16712 bytes
SHA-256: f55ec3431b7ba633c633fc19d138b593b375d55c43b0c959ac4df5f3822fb080
font_02_sfnt_off0000b306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB306 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333