MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link that redirects to a known malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body also contains the same URL, suggesting a lure to download a PDF. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be a phishing attempt using a malicious link disguised as a document download.
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=meaning+and+scope+of+biogeography+pdf
- http://files.365downandout.com/uploads/1/3/1/4/131407423/c64f5475.pdf
- http://files.briggsandbarrettproject.com/uploads/1/3/0/7/130739544/mabaxapupuxiruv.pdf
- http://rikus.unclekennysorgourmet.com/uploads/1/3/1/6/131637136/nesexomikevebita.pdf
- https://cdn.shopify.com/s/files/1/0429/2503/1587/files/domij.pdf
- https://cdn.shopify.com/s/files/1/0430/5689/0013/files/xedizotitiwolar.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vijufetibumumupaxewaromuw.pdf
- https://cdn.shopify.com/s/files/1/0428/0716/5095/files/48151244298.pdf
- https://cdn.shopify.com/s/files/1/0441/3744/7576/files/convert_object_to_array.pdf
- https://cdn.shopify.com/s/files/1/0435/5689/6927/files/76392624284.pdf
- https://cdn.shopify.com/s/files/1/0436/0955/5107/files/36281613621.pdf
- https://cdn.shopify.com/s/files/1/0448/2806/5949/files/linux_administration_handbook_2nd_edition.pdf
- https://cdn.shopify.com/s/files/1/0433/8037/5704/files/naxupironizizi.pdf
- https://cdn.shopify.com/s/files/1/0436/5120/3225/files/39645445658.pdf
- https://cdn.shopify.com/s/files/1/0432/6014/9910/files/23317789365.pdf
- https://cdn.shopify.com/s/files/1/0431/5663/5812/files/suwowel.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_off0000b756.binb965d1da8310051d5569217471441485dfabfa12b2a141122a4007536c20b916 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB756 | 5632 bytes |
font_01_sfnt_off0000ca8d.binaff76322eb9d632a7721adb9fb90b34853465d180eb8f3bec3cdebc63bfb0187 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA8D | 10140 bytes |
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