MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains multiple embedded links, with one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'adverbs of frequency' and the malicious URL, suggesting a lure to disguise the malicious intent. The presence of numerous links to Shopify-hosted PDFs indicates a link farm strategy, likely to improve search engine ranking and distribute 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.ru/pify?keyword=adverbs+of+frequency+esl+pdf In PDF document text
- http://files.maggiecjohnson.com/uploads/1/3/2/7/132740584/0cd5836ebbc316.pdfIn PDF document text
- http://vumexuru.wellaromanaturals.com/uploads/1/3/1/3/131380550/80be1.pdfIn PDF document text
- http://vapigupi.saintgregorysileby.org/uploads/1/3/1/3/131380934/kotebogisarisaf-folijoma-rojugizaj.pdfIn PDF document text
- http://files.griselda.com/uploads/1/3/2/7/132710603/c788995.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/1/0441/1555/8552/files/xiraxakulofevav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2140/8168/files/lubovunijebirosu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8143/3242/files/54994993397.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1997/6350/files/how_does_renin_angiotensin_system_regulate_blood_pressure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8575/6568/files/morality_as_anti_nature.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3020/0991/files/zafinun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9932/4567/files/zivokar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4309/3670/files/ielts_academic_listening_samples_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1992/7713/files/lajiluvumadabokubev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9377/8837/files/67641498938.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7417/5644/files/zarorafelin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5650/4744/files/bubepaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6880/1702/files/53139796953.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5755/9190/files/business_risk_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84407481133.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_off00007131.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7131 | 5112 bytes |
SHA-256: e68174c7ee6edcb27236ba983343ba3e2fcf903d99295503ee70c64caf12c74e |
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font_01_sfnt_off0000829b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x829B | 10348 bytes |
SHA-256: b7f0676a9eb520192ea009b28ef3a66f5f09232d52343658f2f392cbbdfb5459 |
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font_02_sfnt_off0000a5d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA5D6 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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