MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a significant number of embedded links, with at least one pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a tactic to manipulate search results or distribute malicious content. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the link farm and redirector strongly suggest a malicious intent to lure users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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=kishoreganj+district+weather+report In PDF document text
- http://mexanilis.redfishstalker.com/uploads/1/3/2/6/132682137/9fd01114.pdfIn PDF document text
- http://files.createdheavens.com/uploads/1/3/0/7/130775292/firapusikojosed_zekonifebuzexak_pixigekuxiw_serudumer.pdfIn PDF document text
- http://nuxatimum.schoolofenvironmentalleadership.org/uploads/1/3/0/8/130814328/9962448.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/1/0430/8955/9705/files/11714965524.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6231/9517/files/nupukaninixosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6162/2437/files/student_council_speeches_examples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8022/9791/files/38870509186.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8768/4003/files/amor_propio_definicion.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8699/4855/files/scoreboard_command_minecraft.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3637/6214/files/gojexamakinomenexida.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0379/7913/files/aidin_salih_yitik_ifa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8832/1437/files/welcher_ebook_reader_fr.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2684/9700/files/57785468194.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0386/2440/files/32570974636.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7494/5184/files/xp_agile_methodology.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_off00005102.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5102 | 5440 bytes |
SHA-256: 517ca43cfb19ce5d94828e0850c6e03ecdad1c42dae95175f0cb4ce6011d2aae |
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font_01_sfnt_off00006399.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6399 | 10360 bytes |
SHA-256: eef0d11181d02e05e00d11a8394a561440816006152d52a12e06b8c41df55c5e |
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