MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body appears to be malformed or encrypted, preventing a deeper analysis of its content, but the presence of malicious links is sufficient to classify the attack pattern. No scripts were extracted from this sample.
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.ru/wb?keyword=m%C3%A9moire%20master%202%20ressources%20humaines%20pdf In PDF document text
- http://files.weliketodig.com/uploads/1/3/0/7/130739427/satojeb.pdfIn PDF document text
- http://files.arimasarts.com/uploads/1/3/2/8/132815731/welide-zowadoviz-tifixe.pdfIn PDF document text
- http://files.paroute422.com/uploads/1/3/1/4/131410094/jegasifinoluxo-rovile-lamaxaguje-pikurila.pdfIn PDF document text
- http://files.bigoakfarms.net/uploads/1/3/1/3/131379820/vemijorirusanepar.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://vurivul.files.wordpress.com/2020/07/xamidatani.pdfIn PDF document text
- https://zugebopiw.files.wordpress.com/2020/07/sekiloxizovigenobovikor.pdfIn PDF document text
- https://kiwuzep760592565.files.wordpress.com/2020/06/88266059921.pdfIn PDF document text
- https://tovudut.files.wordpress.com/2020/06/42136393875.pdfIn PDF document text
- https://pikudava.files.wordpress.com/2020/07/netafot.pdfIn PDF document text
- https://fububoxoludi.files.wordpress.com/2020/07/kenorutizozifokan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8362/8697/files/tavubusuzebixuvowipala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2631/7473/files/rasolojukarogizepado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20116177671.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2588/2518/files/72684418598.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8657/7828/files/fatenavovofibebifegosu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1983/7346/files/58836116516.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7279/8373/files/23008278468.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/potiwabuvufepatene.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_off0000b4d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4D7 | 5524 bytes |
SHA-256: e9562691b99a8114fc4e26a7b23df88003d9124f1b7f1c4e967a54256ec652cf |
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font_01_sfnt_off0000c733.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC733 | 12668 bytes |
SHA-256: 353ca0b18198f4e47e6e17dd45b664a3467de762b3915a0a201c140f4dc9e59b |
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