MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many of which point to external PDF files, characteristic of a link farm. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.cc/pify?keyword=sirup+belimbing+wuluh+pdf. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious content. No scripts were extracted from this sample.
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.cc/pify?keyword=sirup+belimbing+wuluh+pdf In PDF document text
- http://vejadipux.compassionsfireministriesinternational.org/uploads/1/3/2/7/132741099/8455974.pdfIn PDF document text
- http://files.gloscamsoc.org/uploads/1/3/1/4/131453934/bofopobazek_kufalekokiva_fereralogevules_bagebudunumusen.pdfIn PDF document text
- http://musorigo.cdastars.com/uploads/1/3/1/6/131637016/nimimajewopoxegonud.pdfIn PDF document text
- http://files.danaparalegal.com/uploads/1/3/1/6/131606128/lurutadu-gujufuj-bevavapesewora.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/1/0429/1257/9747/files/aimpoint_golf_chart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8814/9654/files/gipelodubelotowodujizu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9805/3539/files/ejercicios_con_angulos_complementarios_y_suplementarios.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1648/6040/files/jonuvipikole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duzawubemamomavokam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1574/8253/files/water_level_sensor_arduino.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5710/9402/files/pelisegiwusazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2175/4787/files/zedigagadoma.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2902/0317/files/rofirolefefunezi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kofuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9900/4831/files/jitanipaseranigenagigit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4120/8992/files/mil_canciones_andres_cepeda.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_off00006763.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6763 | 5404 bytes |
SHA-256: e7870ed47e3bc9d6faa0d4f36a893ce3711ee5b6544dd4adcea7d6a7725304df |
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font_01_sfnt_off0000799c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x799C | 9752 bytes |
SHA-256: 75cdea0781cec239bb96e7ef21997651e8ccc34bcf236af012aa6cb46fed152e |
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