MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains references to the malicious URL and appears to be a lure for users to click on these links. The ML classifier also strongly indicated maliciousness.
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=libros+de+auditoria+administrativa+2+pdf
- http://files.unorthodoxphilanthropy.org/uploads/1/3/1/8/131872087/ziregoruxar-kapipepenefekuv-gidawetololenal-mumivam.pdf
- http://files.4lifeinc.org/uploads/1/3/0/8/130813821/mevebi_vumiji_maripopas.pdf
- http://files.handyvillage.com/uploads/1/3/1/4/131409709/3432559.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/2447/4531/files/mizawoje.pdf
- https://cdn.shopify.com/s/files/1/0437/5383/2609/files/keynote_templates_free_technology.pdf
- https://cdn.shopify.com/s/files/1/0434/0744/2072/files/steve_soto_deadly_class.pdf
- https://cdn.shopify.com/s/files/1/0431/1325/0965/files/doxikoranen.pdf
- https://cdn.shopify.com/s/files/1/0430/7828/7513/files/z_endorsement_test_answers.pdf
- https://cdn.shopify.com/s/files/1/0430/8716/7645/files/nour_al_bayan.pdf
- https://cdn.shopify.com/s/files/1/0430/2022/2627/files/76047406330.pdf
- https://cdn.shopify.com/s/files/1/0435/9746/3715/files/62555359187.pdf
- https://cdn.shopify.com/s/files/1/0428/2309/0343/files/balaa_drama_ost_song.pdf
- https://cdn.shopify.com/s/files/1/0432/1394/7041/files/house_rental_agreement_format_in_tamil_free_download.pdf
- https://cdn.shopify.com/s/files/1/0429/5367/0822/files/ratut.pdf
- https://cdn.shopify.com/s/files/1/0428/3914/6662/files/48080876661.pdf
- https://cdn.shopify.com/s/files/1/0439/5981/2254/files/campana_de_gauss.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000716f.bincb8428b73bf47305c4c9da770af7d1c47d3f8c38b92b63dd359f79134f018043 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x716F | 5428 bytes |
font_01_sfnt_off000083cf.bine71b20bfebe0b2eb37ff9dba4dd7437280344529b535d174033842649e8a6dec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83CF | 11200 bytes |
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