MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector, and another identified a large farm of external PDF links, suggesting a SEO poisoning or link farm attack. The document body contains a mix of garbled text and URLs, including the primary malicious redirector URL and several other PDF links hosted on various domains.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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/wb?keyword=romantik%20epoche%20merkmale%20pdf In PDF document text
- http://files.maestrasawyer.com/uploads/1/3/1/4/131406785/8c16840.pdfIn PDF document text
- http://files.thanksamillionimports.com/uploads/1/3/1/6/131606819/xodifuluvukotike.pdfIn PDF document text
- http://files.isoandbusinessexpert.com/uploads/1/3/0/8/130813797/noxodak.pdfIn PDF document text
- http://files.ncam.ac.nz/uploads/1/3/0/7/130776788/a94fe6a1c2f25a.pdfIn PDF document text
- http://files.belfastgdp.co.uk/uploads/1/3/1/6/131607930/1581084.pdfIn PDF document text
- http://files.biblesforpakistan.com/uploads/1/3/1/4/131453648/867ecaabaeaae02.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://joxexib916360925.files.wordpress.com/2020/07/voxowewikad.pdfIn PDF document text
- https://dotivuzuku.files.wordpress.com/2020/06/rapitokivakitiramut.pdfIn PDF document text
- https://witujaji.files.wordpress.com/2020/07/72736868090.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45397061855.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pizegavegip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2371/9845/files/34703382137.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11411440246.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65529241957.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/65376553172.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5834/0774/files/dazejaposuriv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.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_off000077e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77E2 | 5076 bytes |
SHA-256: c8cb1ecfbbd893fde95dcade13f82fe91d6153be0333818d6d5494bcedeebed7 |
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font_01_sfnt_off000088ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88EC | 10868 bytes |
SHA-256: f2df00c4d6602987b2196241279f62cf56f9d02d647540d7ab271dbc4d06c01b |
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