MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, one of which points to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'bulacan state university registration form' and a URL that appears to be a lure. The presence of numerous external PDF links suggests a link farm or redirection strategy. 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.com/pify?keyword=bulacan+state+university+registration+form
- http://files.stuartcrouch.net/uploads/1/3/1/4/131406563/goxinotuvegik.pdf
- http://begeju.enamelpainting.co.uk/uploads/1/3/1/1/131164243/kisowutubimosolibidi.pdf
- http://rexox.familyforeveranimalfoundation.org/uploads/1/3/1/4/131483603/padino-vimifusufaf.pdf
- http://tenigubij.drzamps-zgear.com/uploads/1/3/1/4/131406893/1395196.pdf
- http://gezunonef.dibbycables.com/uploads/1/3/0/7/130775971/nanix.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/9388/5089/files/96639411429.pdf
- https://cdn.shopify.com/s/files/1/0433/9505/5777/files/collingwood_college_camberley_ofsted_report.pdf
- https://cdn.shopify.com/s/files/1/0459/3126/6215/files/12717763799.pdf
- https://cdn.shopify.com/s/files/1/0453/2423/9003/files/bahawalpur_map.pdf
- https://cdn.shopify.com/s/files/1/0428/0716/5095/files/weranokig.pdf
- https://cdn.shopify.com/s/files/1/0429/1959/2103/files/curriculum_development_in_pakistan_book.pdf
- https://cdn.shopify.com/s/files/1/0465/1450/3830/files/calcio_in_diretta_tv_apk.pdf
- https://cdn.shopify.com/s/files/1/0431/9418/7933/files/android_prefix_edittext.pdf
- https://cdn.shopify.com/s/files/1/0433/6238/6079/files/fetuwiwinigo.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_off0000657e.bineb7c7ef54e097bf363d45525ad0ed23f5376d6c73f52388a97beb7ae072927d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x657E | 5412 bytes |
font_01_sfnt_off000077e1.bin03c9c2639b117462c8a48219147418e3c56ebdb4f6a32608d9f01d1b0974d107 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77E1 | 10712 bytes |
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