MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document exhibits characteristics of a link farm, embedding numerous external URLs. One critical heuristic identified a malicious redirector link, suggesting a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the sheer volume of links and the presence of a malicious redirector point towards an attempt to lure users to potentially harmful content.
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/pify?keyword=aptitude+questions+with+answers+pdf In PDF document text
- http://files.murdermysteriesiom.com/uploads/1/3/0/8/130814687/6193966.pdfIn PDF document text
- http://files.kristynwalker.com/uploads/1/3/2/6/132695472/likosejixesetela.pdfIn PDF document text
- http://pabilo.montessorihossegor.com/uploads/1/3/2/6/132681488/jekijelesod-lefapofevi-kavizadituset-wawoduvarol.pdfIn PDF document text
- http://rimonom.nightridersnh.com/uploads/1/3/0/7/130739385/zemosojopot.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8075/3058/files/navalomikiribi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5372/7394/files/nudumenezujeti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3530/3831/files/fatojuke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5780/6503/files/ketinodasopoboxegepipoti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2727/4645/files/dedetal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/6145/0654/files/lipuduzumepuzomo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56802730071.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4895/1194/files/xomobokatabuwurinojixu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9189/4176/files/xowufiwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0921/1557/files/wuwuvolodufew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4257/0402/files/59553533267.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94608223162.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5850/3590/files/chalean_extreme_schedule.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006def.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DEF | 5188 bytes |
SHA-256: fb0028d0fdef37b6cb31870ee4249482e070cc73b4b1586b4db00c795f336048 |
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font_01_sfnt_off00007f93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F93 | 11544 bytes |
SHA-256: 1f76185bf4628e48fde0ca991ab74e057dd9d0e7ad3cbe89a0b9020af8778fbd |
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font_02_sfnt_off0000a64f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA64F | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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