MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a redirector service, which is a common tactic for distributing malware or leading users to phishing sites. The document body, though heavily obfuscated, contains text related to 'analytical chemistry' and a URL that appears to be a lure for a free PDF download. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a deliberate attempt to drive traffic to external resources. 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.cc/pify?keyword=analytical+chemistry+an+introduction+7th+edition+pdf+free+download In PDF document text
- http://files.northmiresouces.org/uploads/1/3/1/3/131384589/fakirorefamopar.pdfIn PDF document text
- http://files.uovooo.com/uploads/1/3/1/3/131378953/4553f49.pdfIn PDF document text
- http://files.chiclysoignebonviveur.com/uploads/1/3/0/7/130775308/rimasopoziku.pdfIn PDF document text
- http://fegujuxe.xtremeflair.com/uploads/1/3/0/7/130776326/2811488.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9952/1181/files/49004873202.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4174/3263/files/gajagekilonepizerela.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8769/9876/files/zekif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4681/3344/files/albinismo_oculo_cutan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5202/2430/files/riximevakomobajetefi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1860/0103/files/39815395277.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9776/7592/files/femosaxowosigum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1282/2939/files/866_314_4207.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3550/0439/files/56216333617.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4536/3610/files/45089163063.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1126/0062/files/35344614561.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8345/4882/files/24660990014.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2378/5370/files/affairscloud_current_affairs_2020_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6508/9949/files/shadow_clone_gungeon.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_off00005dfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DFC | 5656 bytes |
SHA-256: 6511e9f125929e32fdf333627b8c92a7835b8dc863010b9d32970a61f157b7e4 |
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font_01_sfnt_off00007132.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7132 | 10640 bytes |
SHA-256: 9202c5ffaafabb03f3238062608f80c7c18d92fa5c166bd71e9f7975fbf9a89f |
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