MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The embedded URL points to a redirector service, which is a common technique for distributing malware or conducting phishing attacks. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs.
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=creepypasta+lazari+demon+form
- http://files.pawsitiveperspective.net/uploads/1/3/0/9/130969986/livunefo.pdf
- http://files.holisticcoachsg.com/uploads/1/3/0/9/130969624/feboperugoxide-tinawijatafof.pdf
- http://files.panduct.com/uploads/1/3/1/3/131383575/9904361.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pegumi.pdf
- https://cdn.shopify.com/s/files/1/0433/6100/9829/files/nimuxigapujigupadam.pdf
- https://cdn.shopify.com/s/files/1/0429/1241/5897/files/86885276772.pdf
- https://cdn.shopify.com/s/files/1/0431/0374/8260/files/xogij.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdf
- https://cdn.shopify.com/s/files/1/0429/7133/2767/files/35893464703.pdf
- https://cdn.shopify.com/s/files/1/0436/4101/2377/files/54511542093.pdf
- https://cdn.shopify.com/s/files/1/0440/1024/2198/files/kadavun.pdf
- https://cdn.shopify.com/s/files/1/0433/1982/0446/files/97152971103.pdf
- https://cdn.shopify.com/s/files/1/0432/4281/5643/files/zemapokug.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/
- https://cdn.shopify.com/s/files/1
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000072d0.bin1fd4bd85851527f25519444d5be5c602dd0511d89a94ff6d19d70659a1e1805a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72D0 | 5152 bytes |
font_01_sfnt_off00008448.bindeac5528a19fc6f3d29347d9a0cfb5feecec04aa95a164009e1b12ce5c5b9f10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8448 | 10208 bytes |
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