Malicious PDF — malware analysis report

Static analysis result for SHA-256 b138a6ba4e7895d4…

MALICIOUS

PDF

61.0 KB Created: 2020-08-12 16:57:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60234c5b93bb5088ecba013e7785b035 SHA-1: 05275a80a3435ac2f423ca882d587dc596defd61 SHA-256: b138a6ba4e7895d49961f39672f24057e5bdca3f262c28c8a22ac398efc9ff15
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack pattern involves luring the user to this redirector, which likely serves as a gateway to malicious content or phishing pages.

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/pify?keyword=estudio+cardiologico+de+framingham+pdf In PDF document text
    • http://pilasite.david-rickard.net/uploads/1/3/2/6/132695306/kajesagodenu_rizasezezaxalev_zokufeg.pdfIn PDF document text
    • http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.pdfIn PDF document text
    • http://files.leslie-marshall.com/uploads/1/3/0/8/130813146/palubagodo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8573/9670/files/86174222667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1202/2691/files/afasia_wernicke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2783/9641/files/nuwopiliribitoker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/530262831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/vezoneroveligasumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/fujemej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/kunuvodozubekexav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0369/0660/files/juneau_county_star_times.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9779/2415/files/ubuntu_deleted_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/16906574467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5969/9109/files/vujerapobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/67934494151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8524/8165/files/vijudufezotejazeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/66177296213.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000afe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFE5 5524 bytes
SHA-256: a5459961b970cbaa0eda1346b823ee6a234d40771bd040bc985aa5c210e7ce1d
font_01_sfnt_off0000c285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC285 10568 bytes
SHA-256: 7f0847403020331643242651a4420295f33cdb4225386cae39db2c1ba0e9fef8

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