Malicious PDF — malware analysis report

Static analysis result for SHA-256 6713e0e2c9f5bd11…

MALICIOUS

PDF

52.0 KB Created: 2020-07-30 10:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 87624b8693435be196f88fccd75d5dad SHA-1: e365719483c39b422324fdeaf90521e8d40e1b7b SHA-256: 6713e0e2c9f5bd11cba8938f1ae5da591768648cebebc1af2202f224414c00b7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links to an SEO redirector, which is a common tactic for distributing malicious content. The primary redirector URL is 'https://ttraff.com/pify?keyword=international+classification+of+headache+disorders+pdf', which likely leads to a malicious payload. The document also includes numerous links to other PDFs hosted on Shopify, suggesting a link farm designed to improve search engine ranking for malicious content. The ML classifier strongly indicated maliciousness.

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.com/pify?keyword=international+classification+of+headache+disorders+pdf In PDF document text
    • http://files.ucsblotp.org/uploads/1/3/0/7/130739490/maxupudataw-wojuk-lenuwuzevi.pdfIn PDF document text
    • http://files.uvcheer.com/uploads/1/3/0/7/130776877/xaselufavexibujawopo.pdfIn PDF document text
    • http://files.budsdoobieclips.com/uploads/1/3/0/7/130740624/lanixa-wokodenoxip-fepilowexef-zexivomo.pdfIn PDF document text
    • http://files.sbtravelbureau.com/uploads/1/3/1/8/131872273/c37658.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/1/0428/6231/3631/files/vumokosubugor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1779/5741/files/matukemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5320/1046/files/44921715609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5825/files/26342430096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/gegekivetamabuzixobod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8686/3783/files/99328407654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/77269712068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7179/8424/files/wuzabuwivebukador.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2603/7411/files/95926017630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0608/2717/files/56006586337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3955/files/56002415729.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 6

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_off00008e6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E6B 4968 bytes
SHA-256: 664304bd15c2292d5b7698b4e7047dcfc3deb31243e56f240cef760fc15dc5b1
font_01_sfnt_off00009f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F36 10424 bytes
SHA-256: 10414b7a2cefb6d966ff877b4c2eef31ffbba37912b34d7f5735923e7775282a

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