MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that point to a known malicious redirector infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, includes the URL that triggered the heuristic, suggesting a lure to a fake technical guide. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of multiple external links, including one to a malicious redirector, indicates a phishing or social engineering attempt.
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.club/wix?keyword=vmware+integrated+openstack+administrator+guide In PDF document text
- http://files.nnpsofaz.org/uploads/1/3/1/4/131437216/ffac8b23d.pdfIn PDF document text
- http://files.blackraven6.com/uploads/1/3/0/9/130969735/a5cd2e7fb456f.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/1/0428/2561/3479/files/63051892099.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0469/0008/4898/files/20578212470.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1687/0293/files/cash_book_entry_in_tally.pdfIn PDF document text
- https://a2ee7701-0e0d-4c12-9c12-201ee6c5e08c.filesusr.com/ugd/b5aed9_1c5f54ae7bfe42b5bc69c6a9ec0feed1.pdf?index=trueIn PDF document text
- https://9dc9dd19-c5f4-4ae2-90db-049d2d513376.filesusr.com/ugd/c88839_81b5289a51684ceea8fcd8e3f4ba073e.pdf?index=trueIn PDF document text
- https://311a4c29-c7dc-4879-bf9b-eb90bf4edb16.filesusr.com/ugd/cdfdba_368c457cd90a4c4694cf6d79d9c69644.pdf?index=trueIn PDF document text
- https://54c59c72-eaef-4218-ba68-188feece2905.filesusr.com/ugd/696117_ce76bb716c3b497b95dfe95346745149.pdf?index=trueIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9739/0244/files/nevoziposajevejiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6264/7191/files/neet_biology_chapter_wise_questions_and_answers_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9581/8404/files/maai_teri_chunariya_lehrayi_audio_song.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7078/3645/files/3947087552.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3093/6733/files/kemikaviruvolig.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_off00006aef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AEF | 5364 bytes |
SHA-256: a32712175bbcc724ea5afd7dff4d222faf6836a406b1513ef39be0ce1ba47c7b |
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font_01_sfnt_off00007d22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D22 | 10704 bytes |
SHA-256: b3a9ce272e64275a5401da802580f3f9e234126427bfdbf4d3c5d1137ebdfbd2 |
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font_02_sfnt_off0000a1bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA1BB | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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