MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to external PDF files. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute further malicious content. The presence of a known malicious redirector URL further supports the malicious intent. No scripts were extracted, and the document body primarily consists of obfuscated text and URLs.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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/wb?keyword=medical%20microbiology%20review%20pdf In PDF document text
- http://files.joyfulnoisedoula.com/uploads/1/3/1/4/131406735/51b869.pdfIn PDF document text
- http://files.roejendradesigns.com/uploads/1/3/1/4/131406762/wugagumigejo.pdfIn PDF document text
- http://files.domhawthornmusic.com/uploads/1/3/0/7/130739318/8128496.pdfIn PDF document text
- http://files.elizabethkpetersonlab.com/uploads/1/3/1/3/131384789/sibufajoj-xuvini.pdfIn PDF document text
- http://files.danielleportfolio.com/uploads/1/3/1/4/131407665/8632102.pdfIn PDF document text
- http://files.qcrc.org/uploads/1/3/1/6/131606003/1248500.pdfIn PDF document text
- http://files.standrewcpcodessa.com/uploads/1/3/1/4/131408344/2fa9cf1f1aaf391.pdfIn PDF document text
- http://files.actingcoachlasvegas.com/uploads/1/3/2/6/132681566/lejele.pdfIn PDF document text
- http://files.leahrempelphotography.com/uploads/1/3/0/7/130738507/5997670.pdfIn PDF document text
- http://files.retirementtimeline.com/uploads/1/3/1/4/131483154/gupebagig.pdfIn PDF document text
- http://files.rachelsvineyardtucson.org/uploads/1/3/1/3/131383664/0714680.pdfIn PDF document text
- http://files.orangevalleycreations.com/uploads/1/3/1/3/131383510/bujofaketuwomidabej.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://faxomabulev.files.wordpress.com/2020/06/77053539789.pdfIn PDF document text
- https://tawojubitalu.files.wordpress.com/2020/07/85041375009.pdfIn PDF document text
- https://dafaxekitupu.files.wordpress.com/2020/07/67606192571.pdfIn PDF document text
- https://bakovenorow.files.wordpress.com/2020/06/kuwolazijibizedomijelage.pdfIn PDF document text
- https://gugibuno158581699.files.wordpress.com/2020/06/kifudi.pdfIn PDF document text
- https://texepavogex.files.wordpress.com/2020/06/16722057229.pdfIn PDF document text
- https://zafevilak.files.wordpress.com/2020/07/duvufonabijamixumuliwep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94448736580.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4077026649.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/paxotaxazojulilinitulo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3100392900.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51025654711.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_off00005050.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5050 | 5296 bytes |
SHA-256: 66e0771e4e62978a69139f90385e1e95971134e6d5a503ccd4ebcdba12e5da16 |
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font_01_sfnt_off00006264.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6264 | 9648 bytes |
SHA-256: c4aa16b1e27be163c2c0e23c3dbcc3c38e676de1abce285f159011ba2345ed4b |
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