MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=winzip+free+download+full+version', which is designed to lure users into downloading potentially malicious software. The document also includes a large number of links to PDFs hosted on Shopify, likely for SEO manipulation to improve search engine ranking for malicious download lures. The presence of a 'password-protected archive handoff' heuristic suggests that the user is expected to download an archive and is provided with instructions to decrypt it, further indicating a malicious workflow.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=winzip+free+download+full+version In PDF document text
- http://files.rinfang.com/uploads/1/3/1/0/131069906/4635989.pdfIn PDF document text
- http://files.stetheldredasistersandfamily.com/uploads/1/3/1/4/131407445/palamowevunomudita.pdfIn PDF document text
- http://files.deep-learning-site.com/uploads/1/3/0/7/130775623/7577765.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/1/0435/7311/7086/files/21094630653.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0151/1064/files/muxuzej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9477/8791/files/bebotixebuledufeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9244/2277/files/tomidofakurifajino.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6587/6379/files/12890244439.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8226/1415/files/95249335938.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4656/8098/files/59906074307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6016/5797/files/vawuvetoganusawenivekoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7180/7391/files/33066318900.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6935/7728/files/puzuvibofovaxebabid.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006818.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6818 | 5252 bytes |
SHA-256: 5e5b2cc5bb9d4ab2c52ca76e8a43554383141933307ebc803088cc0e6fc128bb |
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font_01_sfnt_off00007a2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A2C | 10352 bytes |
SHA-256: 611ba790d8ebb4fa590c1343a37c4143e4cb781c406a78f240bd61255f73b700 |
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