MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated, but the presence of numerous links suggests a link farm or phishing attempt designed to lead users to malicious content. The primary malicious IOC is the 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.com/wb?keyword=cpheeo%20manual%20water%20supply%20treatment%20pdf
- http://files.allforkidscenter.com/uploads/1/3/0/7/130739212/raxisojip.pdf
- http://xafizib.ritchiehair.com/uploads/1/3/1/0/131069934/bde0ed269bcf.pdf
- http://files.macsnapshot.com/uploads/1/3/0/7/130740412/3151169.pdf
- https://cdn.shopify.com/s/files/1/0431/9523/6509/files/36177233290.pdf
- https://cdn.shopify.com/s/files/1/0430/9060/8285/files/love_stage_ep_1_english_sub.pdf
- https://cdn.shopify.com/s/files/1/0434/8064/5782/files/67570864569.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kuwuvovevikusezavufada.pdf
- https://cdn.shopify.com/s/files/1/0433/0982/6213/files/rewinak.pdf
- https://cdn.shopify.com/s/files/1/0431/9982/4032/files/fogawufud.pdf
- https://cdn.shopify.com/s/files/1/0435/1967/2472/files/juzakesozilegonesi.pdf
- https://cdn.shopify.com/s/files/1/0429/7365/9290/files/10333270052.pdf
- https://cdn.shopify.com/s/files/1/0432/6404/9318/files/vodotute.pdf
- https://cdn.shopify.com/s/files/1/0431/8763/4338/files/73402941130.pdf
- https://cdn.shopify.com/s/files/1/0440/3914/3574/files/lisufokalatuwafesolilowan.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_off00006191.bin6c83017869c9b4c641ee5488441e57010c49ea77073b618443584289b0adb694 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6191 | 5380 bytes |
font_01_sfnt_off000073c6.binb6ca9414fe6d60c05e53f9fba8af64f819815c7805fa0fd72cef4d4cc1845560 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73C6 | 10688 bytes |
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