MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1200 Hardware Add-Override
The PDF file contains a large number of embedded links, a technique often used to direct users to malicious websites for phishing or malware distribution. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to traff.ru, indicating a known malicious redirector. The PDF_SEO_LINK_FARM heuristic further supports this by identifying a mass external PDF link farm, suggesting an attempt to manipulate search engine results or distribute content through numerous intermediary sites. No scripts were extracted from this sample.
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/pify?keyword=pulmonary+hypertension+pathophysiology+pdf In PDF document text
- http://files.stitchmastersltd.com/uploads/1/3/0/8/130813923/4f5fc437a4.pdfIn PDF document text
- http://files.truewealthfg.com/uploads/1/3/2/7/132710687/migejowo.pdfIn PDF document text
- http://files.florablackettdesigns.com/uploads/1/3/0/8/130813762/dibusumenebagina.pdfIn PDF document text
- http://files.mrscallsfifthgradeheroes.com/uploads/1/3/2/8/132815342/8482473.pdfIn PDF document text
- http://files.wrfw887.com/uploads/1/3/0/8/130874564/pirodivufalofipab.pdfIn PDF document text
- http://files.whitneyelliottphotography.com/uploads/1/3/0/8/130874297/9904432.pdfIn PDF document text
- http://files.monsterinktattoostudio.com/uploads/1/3/2/7/132710671/rufumajokijan.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://labupuli.files.wordpress.com/2020/07/43396926254.pdfIn PDF document text
- https://xokumawuv.files.wordpress.com/2020/07/82781617295.pdfIn PDF document text
- https://defotikev.files.wordpress.com/2020/07/20544946400.pdfIn PDF document text
- https://nakeset.files.wordpress.com/2020/07/xedad.pdfIn PDF document text
- https://tizamugoli.files.wordpress.com/2020/06/xemujufipuzulelikutidep.pdfIn PDF document text
- https://dabujekikun.files.wordpress.com/2020/07/wifunerus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2379/4337/files/17189851022.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2897/1681/files/tobera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lonuxifipepi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38970143778.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d8c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C1 | 5440 bytes |
SHA-256: fd3be85bede1cc4e2d8b63af00f494ada632653324cc774c28b577b03484299a |
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font_01_sfnt_off0000eb16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB16 | 11996 bytes |
SHA-256: 6a149c2cbad9e95df14a0f5481bd34bb4ed5ec34c179a423d1e7ec392fdb19de |
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font_02_sfnt_off00011287.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11287 | 16060 bytes |
SHA-256: 4ef9506ee11a349461550e6b437e3786686b598308a87786035880d16624999d |
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