Malicious PDF — malware analysis report

Static analysis result for SHA-256 b711a66c921656b7…

MALICIOUS

PDF

45.5 KB Created: 2020-07-26 15:15:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84aeaf44dde26795666594ca013321da SHA-1: 325307be01ef80c416e967aad7407d914957a615 SHA-256: b711a66c921656b7418a74808d60bfaee264073395c1afa3e81b5603fddb82d4
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with many links pointing to Shopify domains, and one critical link to a known malicious redirector at ttraff.com. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates this redirector is used to deliver malware. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further suggests a social engineering lure to trick the user into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=utorrent+pro+for+android+free In PDF document text
    • http://files.carpediemshows.com/uploads/1/3/1/6/131606284/palubigawubobomo.pdfIn PDF document text
    • http://files.spotlightcoachingdc.com/uploads/1/3/2/3/132303312/minopedodozupo.pdfIn PDF document text
    • http://files.cheriejsmith.com/uploads/1/3/1/6/131607103/159503.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/1/0433/0687/7080/files/rajijabobuzev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2095/1450/files/jodoridavelimuxifuguwatis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0999/0043/files/64314647370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3486/8897/files/10927551709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/garewopovevikeguwanal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6114/9850/files/89458469980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3452/6375/files/varadovukonilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/5552181607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/66168077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21533622499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/fuxesekaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0003/5485/files/soseguv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2711/1841/files/43644448029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6303/1448/files/tugamizizevadezoged.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75CD 4604 bytes
SHA-256: c7eec9933c4d5a640889a1c0111eb9a26b81ab9c83f47bfa0086a12e0eff3ccb
font_01_sfnt_off00008576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8576 10328 bytes
SHA-256: fda5fc996b7c3a9b1553936a4c2d09217a524f5333bf21c7c085159b52faebec