MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, including a primary link to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'behavioral theory of depression pdf'. The ML classifier strongly indicated maliciousness, and the heuristic firings confirm the presence of malicious redirector links and a link farm designed for SEO manipulation. The primary malicious URL is https://ttraff.com/pify?keyword=behavioral+theory+of+depression+pdf, which likely leads to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=behavioral+theory+of+depression+pdf In PDF document text
- http://funifej.themilkshed-devon.com/uploads/1/3/1/0/131070450/zagufamaza.pdfIn PDF document text
- http://files.charliehempseed.com/uploads/1/3/0/7/130738565/7803061.pdfIn PDF document text
- http://vuvaxaxu.tarynartistry.com/uploads/1/3/0/7/130775531/98ffb.pdfIn PDF document text
- http://files.stocktonkendodojo.com/uploads/1/3/0/9/130969160/e2d583d1.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/9410/5509/files/lufipevoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3203/4980/files/jowokofusodagalap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7381/4182/files/21759062421.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8339/9329/files/23869835824.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6152/6166/files/zixefovujuzugizepami.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4252/9695/files/59150705731.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3320/6690/files/atlas_de_microbiologia_clnica.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3885/0728/files/80410255925.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0204/4316/files/77586747337.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5497/1557/files/factors_determining_price_elasticity_of_demand.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4247/9007/files/cascade_control.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4506/8699/files/mevixusasu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5395/6758/files/gapumolaziva.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008721.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8721 | 5128 bytes |
SHA-256: 33dba489e847891d730dc2a8e5d214bba35dd8c67343a884e403d60d978fea3a |
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font_01_sfnt_off00009899.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9899 | 10012 bytes |
SHA-256: 9487d10e06a2ee1b9a266c83eaaa04715569f965703fcebf33b977f8f6f9d0e8 |
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font_02_sfnt_off0000baeb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBAEB | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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