MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious File
T1059.001 PowerShell
The PDF contains a link farm and a malicious redirector, indicating a social engineering attempt to trick the user into downloading malicious content or visiting a compromised site. The heuristic 'SE_BROWSER_INSTALL_LURE' suggests the document prompts the user to install a browser extension or update, a common tactic for credential theft or malware installation. The primary malicious URL identified is https://ttraff.ru/pify?keyword=pdf+to+word+converter+nitro+pro+9.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=pdf+to+word+converter+nitro+pro+9 In PDF document text
- http://files.pempickleball.com/uploads/1/3/0/7/130739415/numuzijesasulux.pdfIn PDF document text
- http://gijavuro.totalbusinesswebsitesolutions.com/uploads/1/3/0/7/130739892/ziwimewo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2937/2836/files/expenditure_method_of_measuring_national_income.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4991/8362/files/charities_aid_foundation_2019_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2574/4547/files/42239523018.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1682/2692/files/44291694872.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8649/5396/files/22830619664.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7727/1713/files/99961326282.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4672/2965/files/django_template_tags_not_loading.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1824/8601/files/21914697462.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4119/3110/files/65603081130.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3495/8229/files/livro_cantico_dos_canticos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2998/5430/files/gijobutimuzefozudotara.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_off0000712f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x712F | 5040 bytes |
SHA-256: 2be912487b8524fcacf98f150dffadbd1367295620e126070c055c969fbf7b20 |
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font_01_sfnt_off0000827f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x827F | 10076 bytes |
SHA-256: 268c06dc744a62d85244626532bcec65b0c75a04cabc5c06bb5e047e695dbdf1 |
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