MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector URL confirms the intent to lead users to harmful content. The document body itself is largely obfuscated but contains the malicious redirector URL.
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.cc/pify?keyword=aromatic+amines+notes+pdf
- http://files.thursdayschildsailing.com/uploads/1/3/1/6/131606569/08d03.pdf
- http://fizulil.synaesthesiajournal.com/uploads/1/3/1/1/131164250/2235d51967.pdf
- http://files.4toebooth.com/uploads/1/3/1/1/131163969/428c44c1ee2e4.pdf
- http://files.presscoffee2go.com/uploads/1/3/1/4/131406149/5888153.pdf
- http://verogu.taurangacivicchoir.org.nz/uploads/1/3/0/7/130776485/vomepopatanum.pdf
- https://cdn.shopify.com/s/files/1/0427/8022/9791/files/56199999096.pdf
- https://cdn.shopify.com/s/files/1/0430/6917/8017/files/sijisesu.pdf
- https://cdn.shopify.com/s/files/1/0432/5107/3174/files/zasipixalijuzarubuxu.pdf
- https://cdn.shopify.com/s/files/1/0430/4178/3959/files/tixapalu.pdf
- https://cdn.shopify.com/s/files/1/0435/8022/7747/files/nesaruxujebulesopenefepav.pdf
- https://cdn.shopify.com/s/files/1/0448/4608/8349/files/try_catch_c.pdf
- https://cdn.shopify.com/s/files/1/0440/5320/1046/files/20279079675.pdf
- https://cdn.shopify.com/s/files/1/0430/7252/0352/files/77371579934.pdf
- https://cdn.shopify.com/s/files/1/0434/7812/2649/files/fabilex.pdf
- https://cdn.shopify.com/s/files/1/0451/4293/3657/files/vcf_to_android.pdf
- https://cdn.shopify.com/s/files/1/0435/9726/7112/files/sidivevavin.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_off0000649c.bine05a29cbc87bbcc8c10edea8c9629fda4bab7ada403bd5fbe4e5c967b60736ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x649C | 5260 bytes |
font_01_sfnt_off0000765a.binc9a3b7f0bfbe4c34b940bb8cd55100e28992b6acb02db6aaa7a772c1d26e9e44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x765A | 9920 bytes |
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