MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be a lure for academic content, likely to disguise the malicious intent. The ML classifier strongly indicates maliciousness, and the presence of a known malicious redirector confirms this.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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/pify?keyword=campbell+biology+concepts+and+connections+5th+edition+pdf
- http://files.mobilecarandrvdetail.com/uploads/1/3/1/4/131406527/9019394.pdf
- http://files.koboxingusa.com/uploads/1/3/1/4/131406817/zibaxi-kavakep-piwar.pdf
- http://files.shahsart.com/uploads/1/3/2/8/132814930/jupuregak.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/6585/1542/files/53676522506.pdf
- https://cdn.shopify.com/s/files/1/0432/6536/0034/files/giwagotufad.pdf
- https://cdn.shopify.com/s/files/1/0433/5442/3464/files/63835883207.pdf
- https://cdn.shopify.com/s/files/1/0436/5480/7717/files/vukafuraxufawodaguv.pdf
- https://cdn.shopify.com/s/files/1/0438/7520/5288/files/4370713758.pdf
- https://cdn.shopify.com/s/files/1/0436/2082/7300/files/47581907397.pdf
- https://cdn.shopify.com/s/files/1/0431/9130/4343/files/jafudakagamatawex.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30611133668.pdf
- https://cdn.shopify.com/s/files/1/0434/5148/2278/files/43502311083.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kenawuvotijogajutimev.pdf
- https://cdn.shopify.com/s/files/1/0434/4859/8678/files/lafotibevetolo.pdf
- https://cdn.shopify.com/s/files/1/0428/5913/5132/files/bobcat_troubleshooting_manual.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006144.bin915a561a607d241276b73f9f1c4649c2984a291cbae3a37c05eb44aa2cf170cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6144 | 5744 bytes |
font_01_sfnt_off000074b4.bindb67d27516de52bd4b1efe020c45247599863184f2af64a110ca78e682528fb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74B4 | 10368 bytes |
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