MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF document contains multiple heuristics indicating malicious redirection and a link farm, with a critical finding of a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be a lure for a PDF download, likely intended to lead users to a malicious site. The presence of embedded URLs and the ML classifier's high confidence score support the assessment of malicious intent.
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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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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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.cc/wb?keyword=cfmeu%20rdo%20calendar%202017%20vic%20pdf In PDF document text
- http://files.katherinefusco.com/uploads/1/3/1/4/131408930/sanobaxelof.pdfIn PDF document text
- http://files.mpflynngroup.com/uploads/1/3/0/8/130873951/5607014.pdfIn PDF document text
- http://files.approachapparel.com/uploads/1/3/1/3/131383664/8009279.pdfIn PDF document text
- http://files.juliewiegand.com/uploads/1/3/1/4/131453480/dd1b72145be5fa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://tigifelaziv.files.wordpress.com/2020/06/nowode.pdfIn PDF document text
- https://vizivalafis.files.wordpress.com/2020/06/25940175278.pdfIn PDF document text
- https://tamiriwuwaxo.files.wordpress.com/2020/07/dewipezasureduvabut.pdfIn PDF document text
- https://gegiguwesaf.files.wordpress.com/2020/07/somigopapitipi.pdfIn PDF document text
- https://tetajis.files.wordpress.com/2020/06/sevemofo.pdfIn PDF document text
- https://rufumeridap.files.wordpress.com/2020/06/58614755871.pdfIn PDF document text
- https://vajepevugu.files.wordpress.com/2020/06/12343701835.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1471/7597/files/56673219945.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9832/5663/files/damenevixuselogem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6404/1373/files/38357864584.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4028/5607/files/12556317287.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7505/0395/files/gifarizaxubasuvadade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5453/7624/files/lavonomejufexapijogira.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5294/9913/files/luribepupadigiretozib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.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_off000063fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63FD | 5412 bytes |
SHA-256: 905df9c50f2e11182a20bb5cc36c3aad39d412472e264f19b29ef44b10064474 |
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font_01_sfnt_off00007651.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7651 | 9932 bytes |
SHA-256: 04b9205003414c96f7cea0fe393185afab8fce7a8d58d23038e6f6183f6db063 |
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