MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains references to URLs that are part of a link farm, suggesting an attempt to manipulate search engine results or lure users to malicious sites. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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.com/pify?keyword=java+iterate+through+list In PDF document text
- http://files.carolinastormhedgehogs.com/uploads/1/3/1/6/131637291/fanipewonosewagafuv.pdfIn PDF document text
- http://files.kootneyresorts.net/uploads/1/3/2/6/132681823/d170a8faf99.pdfIn PDF document text
- http://files.karyntunks.com/uploads/1/3/2/7/132740204/pimasivam_lupadaka_pebimegawexubav_juwana.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/1/0434/0501/7255/files/192._168_l_254._254.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6538/4866/files/12063259238.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9088/6312/files/vewexomati.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2935/4917/files/totiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5542/4423/files/19819418634.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9732/5732/files/memobojuzipibobekiloduva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7730/4484/files/sikuni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3755/5864/files/sims_4_medium_curly_hair.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugerivedisabuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1564/3031/files/9365090554.pdfIn macro / runtime command snippet
- https://cdn.shopify.com/s/files/1/0434/1966/4540/files/61332599114.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
- https://cdn.shopify.com/s/files/1/0433/0687/7In macro / runtime command snippet
- 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_off000057e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57E0 | 4996 bytes |
SHA-256: 9aca29354dd64502515cccf920dade8063cf47b05ef7d728e017ad0eb10bbebe |
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font_01_sfnt_off000068df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68DF | 14156 bytes |
SHA-256: dc4f48b68a8980bb052f53674700c02fae53541a5a2a86ac72d7a483f07bfcac |
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