MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for an 'Audi a5 manual'. The presence of numerous PDF links, including one to a malicious redirector, suggests a campaign to drive traffic to malicious sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=audi+a5+manual In PDF document text
- http://files.sideporchhandmadesoap.com/uploads/1/3/1/3/131397960/754b7e2.pdfIn PDF document text
- http://files.healthgeography.org/uploads/1/3/0/7/130739652/6783659.pdfIn PDF document text
- http://files.conradarchitectureanddesign.com/uploads/1/3/0/9/130969461/binazezanuti.pdfIn PDF document text
- http://files.austlinq.com/uploads/1/3/1/8/131871704/xagulumoxelako_lemabitukusuwax_daxofibobaxano.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/1/0434/6091/9462/files/fofipure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6621/2003/files/fezurufuvufiji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6623/6834/files/jurexaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3720/3364/files/84129144105.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5229/2513/files/demubozuwowumo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1970/6269/files/19450122241.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8206/2753/files/52943440923.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0399/2474/files/47562936923.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6486/0575/files/palajuluwikodex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8566/9279/files/wepuwituresekokowonodawas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2076/3804/files/42047781470.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_off000046e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46E8 | 4384 bytes |
SHA-256: a3a0de81e2fdb464d9f96dbb67ddb607beeff968bb1ecec719c7ae9d398cff80 |
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font_01_sfnt_off00005598.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5598 | 9812 bytes |
SHA-256: 3101caaf3a742fb3bfc7b3c6e676891c2d8346066330c77294d8646f1a1eec60 |
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font_02_sfnt_off0000773d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x773D | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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