MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=quarterly+report+format+for+cs+training'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to the same URL and a large number of other PDF links, suggesting a link farm or redirection strategy. The ML classifier also strongly indicated maliciousness.
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=quarterly+report+format+for+cs+training In PDF document text
- http://files.peacelovemonkey.com/uploads/1/3/1/6/131606630/2884479.pdfIn PDF document text
- http://files.brokenchainsbm.org/uploads/1/3/0/7/130739651/abbe66a.pdfIn PDF document text
- http://ketodug.jennypiersol.com/uploads/1/3/2/6/132683071/livabovokekexak.pdfIn PDF document text
- http://files.heavenlypoodlesanddodles.com/uploads/1/3/1/3/131379748/wofoduxapegudujat.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/1/0433/2270/4030/files/66757939235.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7301/0840/files/rumiwep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4021/9041/files/dizofukujizedadugerumaxor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4717/4812/files/dipubipafizuzafovuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/2893/0709/files/xazeto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9884/7896/files/xanasidu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3728/5797/files/womijopakigogax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6150/2362/files/sample_introduction_for_lab_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0744/3103/files/96508127678.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4251/2791/files/86192154251.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0537/0791/files/xorobifafevonowofalu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6939/0500/files/kujipiwasoxevurij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3968/5799/files/22931676924.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9959/4656/files/kezagaroritifufefeza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0818/0895/files/kobogupamikulew.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_off00004788.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4788 | 5500 bytes |
SHA-256: 21a42758f12319b4ac0364ecc834ac4acb60620438f1079d365460c0b6378dcb |
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font_01_sfnt_off00005a38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A38 | 8988 bytes |
SHA-256: e921770cb9e70747fe8121b0971c587874e8034b7e4b3f24d229093e8332e31d |
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