MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting a lure for "investment banking books pdf free download", which aligns with the malicious redirector URL. The presence of a large number of external PDF links further supports the SEO link farm heuristic.
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.com/pify?keyword=investment+banking+books+pdf+free+download
- http://files.movalhome.net/uploads/1/3/1/3/131398244/lasikasiwonu_kezaxog_surilim_famarefora.pdf
- http://files.ufloriaorganics.com/uploads/1/3/1/4/131437669/navejunozaseg_jeximeson_jewuvimok.pdf
- http://files.harleyeaston.com/uploads/1/3/1/3/131398142/xujilefewar-dewizok.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.pdf
- https://cdn.shopify.com/s/files/1/0433/9289/3093/files/duterarovovuded.pdf
- https://cdn.shopify.com/s/files/1/0430/8611/9079/files/84366286712.pdf
- https://cdn.shopify.com/s/files/1/0433/4741/1096/files/detilaxekuwi.pdf
- https://cdn.shopify.com/s/files/1/0433/5448/8990/files/15711901265.pdf
- https://cdn.shopify.com/s/files/1/0432/2315/4850/files/5e_oath_of_the_crown.pdf
- https://cdn.shopify.com/s/files/1/0433/6343/4654/files/zexedosudurizufidumafuwe.pdf
- https://cdn.shopify.com/s/files/1/0429/7415/0809/files/84291970941.pdf
- https://cdn.shopify.com/s/files/1/0431/5312/9640/files/sarevumiwolu.pdf
- https://cdn.shopify.com/s/files/1/0433/3161/6923/files/advanced_level_vocabulary.pdf
- https://cdn.shopify.com/s/files/1/0434/0505/0021/files/80371817453.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/miveguxuxububepevomozit.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006604.bina1332e0de7617d4514a30435fdc58eda64df6b7d265246c6109ca796e6adcfc6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6604 | 5652 bytes |
font_01_sfnt_off0000793e.bin85c9224f5e6d16e44eb505fbd8155161d641dbe30a50bd9c799eae23ce0e57b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x793E | 10140 bytes |
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