MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to external websites, disguised as search results for popular books. One critical heuristic identified a link to a known malicious redirector at `https://ttraff.com/wb?keyword=oxford%20bookworms%20library%20stage%204%20the%20scarlet%20letter%20pdf`. Another heuristic flagged the document as a link farm, with many embedded URLs pointing to PDF files hosted on various domains, suggesting a coordinated effort for SEO manipulation or malware distribution. 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.com/wb?keyword=oxford%20bookworms%20library%20stage%204%20the%20scarlet%20letter%20pdf In PDF document text
- http://files.wkgma.com/uploads/1/3/0/8/130874554/7b5425aa.pdfIn PDF document text
- http://files.mothermoon10.com/uploads/1/3/2/6/132681758/zuvigodesuvamulab.pdfIn PDF document text
- http://files.teachloveinspirecreate.com/uploads/1/3/0/7/130740127/4db936.pdfIn PDF document text
- http://files.byrdcreekcoffee.com/uploads/1/3/0/7/130739132/vuwaxeluvedam-badedepuvopir-zovepo.pdfIn PDF document text
- http://files.bubba-and-friends.org/uploads/1/3/1/3/131383305/1707274.pdfIn PDF document text
- http://files.vmacbusinessdevelopment.com/uploads/1/3/1/3/131384660/27db02f915549fa.pdfIn PDF document text
- http://files.stephencoetzee.co.uk/uploads/1/3/1/4/131454436/476610.pdfIn PDF document text
- http://files.milightning.org/uploads/1/3/2/3/132303248/wiratepanev.pdfIn PDF document text
- http://files.hhrstrategies.com/uploads/1/3/1/8/131871829/jetamonike-gekavukas-kuxesivi.pdfIn PDF document text
- http://files.thealbertafloodroseproject.com/uploads/1/3/0/9/130969555/13cd00738d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://panamekeze.files.wordpress.com/2020/07/xevadojotatidirikobofoni.pdfIn PDF document text
- https://pajefobipisa.files.wordpress.com/2020/06/tuzusajifabo.pdfIn PDF document text
- https://pevuwuke.files.wordpress.com/2020/06/fonojuwisemine.pdfIn PDF document text
- https://virebon.files.wordpress.com/2020/06/vagafilukefunizulefasa.pdfIn PDF document text
- https://worelelagep.files.wordpress.com/2020/07/44908440896.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sekokejeninidifowabofu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tawoxusabevesumaxev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38746106010.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_off00005e80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E80 | 5832 bytes |
SHA-256: 10c78e1ee22a49df327aaafe19ce59419f74ee5d5d67fe4d30c907a7b8b794bb |
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font_01_sfnt_off00007281.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7281 | 10064 bytes |
SHA-256: 25c624d058ec370dbc01057bdaac869ee602cc7ca41a623d641bae3b7b56caa1 |
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