MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is an ebook, which is a common lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to improve SEO for malicious content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=a+guide+to+descriptive+writing+practice+ebook+pdf
- http://files.thefifacorruptionscandal.com/uploads/1/3/0/8/130814353/bulixamigi.pdf
- http://files.tynesidebookclub.com/uploads/1/3/0/8/130813582/6424547.pdf
- http://files.gilchristwhatnot.com/uploads/1/3/1/8/131856991/wepesebenemitaf.pdf
- http://files.danishclubnanaimo.com/uploads/1/3/2/6/132681342/jitededokiso.pdf
- https://cdn.shopify.com/s/files/1/0436/7400/9753/files/socialismo_definicion.pdf
- https://cdn.shopify.com/s/files/1/0429/6497/5765/files/fidatenikukiduvumaw.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98029452840.pdf
- https://cdn.shopify.com/s/files/1/0429/9672/7957/files/latukira.pdf
- https://cdn.shopify.com/s/files/1/0441/4429/6088/files/32509170471.pdf
- https://cdn.shopify.com/s/files/1/0441/2289/8584/files/8386752980.pdf
- https://cdn.shopify.com/s/files/1/0428/2168/1315/files/tuzado.pdf
- https://cdn.shopify.com/s/files/1/0430/2408/9242/files/27061542497.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52325197595.pdf
- https://cdn.shopify.com/s/files/1/0433/0936/7454/files/8104826601.pdf
- https://cdn.shopify.com/s/files/1/0428/7194/7423/files/49694942240.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000740c.bin2d292b60c73f21ccf950f7c2aa08f0a210306f548989d08fff12fba91318d349 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x740C | 5636 bytes |
font_01_sfnt_off0000875f.bindb56f26b354d1e0364d7099c26c015b6da628b74330dc8ea479e49fd99e4db89 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x875F | 10452 bytes |
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