Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9a267681b31eb4f…

MALICIOUS

PDF

47.9 KB Created: 2020-07-31 10:58:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d662553dcc7eb13d9af8d4a2f94b3dc SHA-1: 753c39ef17b5fe645df5d605bc486dfa5ae45277 SHA-256: d9a267681b31eb4fc447853b92a309724e9711801f8b041fdf71aed5908d5db3
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, including a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, suggests a lure related to 'arthritis hip exercises pdf'. The presence of a malicious redirector indicates an attempt to lead the user to a malicious site, likely for further exploitation or credential harvesting.

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=arthritis+hip+exercises+pdf In PDF document text
    • http://files.thetekkitrealm.com/uploads/1/3/0/9/130969842/dovuwoxisijulur.pdfIn PDF document text
    • http://files.staiguefortcottage.com/uploads/1/3/0/7/130739239/vuxurer.pdfIn PDF document text
    • http://files.tuscarora-tribe-nc.com/uploads/1/3/1/3/131383456/nizirafese-tagudafoju-bixinukogutoke.pdfIn PDF document text
    • http://files.poderco.com/uploads/1/3/1/4/131438784/59cf6bd.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/1/0430/9732/5732/files/28337440955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7260/9686/files/55711579887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6563/9069/files/45809278326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2960/8101/files/35494537125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2584/1819/files/gokajegukuzuseluvigafaxef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/60995664881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5353/7690/files/38778348075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8606/7352/files/rilakiwiwalozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5509/files/99181721673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2670/2758/files/vugegaroforepitedidugoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/rabajetowenibasipavib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8365/2506/files/90498075572.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_off000080e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80E9 4632 bytes
SHA-256: 8e04ef523ca8acb5b003bc2916edc8f0319206d5ef57e891390931e219f6f273
font_01_sfnt_off000090c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90C0 9828 bytes
SHA-256: 6c20edcd72bdb305128d207827f57cfbc80369ea81f57f61455fb9ea3fda8d60

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