MALICIOUS
294
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The sample is a PDF document flagged by multiple critical heuristics as a malicious redirector and a payment redirection lure. It contains numerous links, with a primary one pointing to 'https://yafferge.ru/strik?utm_term=gtx+970+sli+vs+rx+5700+xt', which is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to hardware comparisons, which is likely a lure to disguise the malicious intent of redirecting users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://yafferge.ru/strik?utm_term=gtx+970+sli+vs+rx+5700+xt In PDF document text
- http://katipef.medianewsonline.com/suxadapi.pdfIn PDF document text
- http://zugugalepew.mypressonline.com/xavemo.pdfIn PDF document text
- http://werojati.getenjoyment.net/nisumikiduwoxafu.pdfIn PDF document text
- http://lebepufu.mypressonline.com/cancionero_picot_gratis.pdfIn PDF document text
- https://cdn.sqhk.co/zatugudaxaji/iFgihU6/blue_heeler_german_shepherd_mix_weight.pdfIn PDF document text
- https://cdn.sqhk.co/fuwuwoki/ghajjdm/xejabinifit.pdfIn PDF document text
- https://cdn.sqhk.co/vufisolepu/6a7gigj/tiny_archers_hack_mod_apk_download_free.pdfIn PDF document text
- http://nifazafagikoxa.medianewsonline.com/nasemiperogebegodosoga.pdfIn PDF document text
- https://cdn.sqhk.co/luwibajik/ielwidv/nuralusisugapomana.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/gedexim/how_to_change_battery_in_weight_watchers_scale.pdfIn PDF document text
- https://s3.amazonaws.com/nilititonawafim/60880393640.pdfIn PDF document text
- https://dab7fb03-f2af-4a8e-9cb9-31de623bedb3.filesusr.com/ugd/58b596_89109b18a8494fd5a2fd3ed4f3363e17.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lolijexejomak/dietary_guidelines_for_total_fat.pdfIn PDF document text
- https://s3.amazonaws.com/pajeriramal/29700841073.pdfIn PDF document text
- https://s3.amazonaws.com/resixexi/vanilla_ice_cream_nutritional_information.pdfIn PDF document text
- https://s3.amazonaws.com/sinamozagemoger/fios_router_configuration.pdfIn PDF document text
- https://d5bea983-5bca-41ba-aae6-6b688785cc77.filesusr.com/ugd/9ec29b_e1ed35ce58db4f249dbf378ebc06f2e8.pdf?index=trueIn PDF document text
- https://22520ec4-2132-45a5-98b8-54db1b71d3ea.filesusr.com/ugd/b33b96_c0e6930929494d7c997c4b5fbc9f809c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nitidadufetenu/samozogurijovat.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_off0000ee11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE11 | 5128 bytes |
SHA-256: 17104240cf9bdf197c4e04c477e2f3b0a7444a8f055c25f6292dd1e2894a34ca |
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font_01_sfnt_off0000ffac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFAC | 11724 bytes |
SHA-256: 3575b213e5af88a602dd8d2acf145160166c15074470fb8db3b2b90a42a77d33 |
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