MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, one of which points to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for "Taobao app for android" downloads. The presence of numerous external PDF links, many pointing to Shopify domains, suggests a link farm or redirection strategy to obscure the ultimate malicious destination. No scripts were extracted, but the PDF structure itself facilitates the redirection.
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=taobao+app+for+android In PDF document text
- http://zanigumo.shirleenjeweliciouss.com/uploads/1/3/0/7/130739775/safefavitib.pdfIn PDF document text
- http://sexapudav.jaquiradiaz.com/uploads/1/3/0/9/130969723/7f210f1715490da.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6690/9081/files/project_nevada_new_vegas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5797/1362/files/rozuwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31903895201.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8520/9507/files/47647351403.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4243/1395/files/94149160093.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2641/4748/files/dorurubexilerenenujuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9821/9420/files/zikataxoborofogafatigeb.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005a56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A56 | 4916 bytes |
SHA-256: 2e231379812000e63aabe037030f750fdd8c12ba4e76d636d21d29a75c9820a4 |
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font_01_sfnt_off00006b15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B15 | 13496 bytes |
SHA-256: 0ce359bcb468e4d502c2b601a9436202b06ec4f4cf75ffbb3c112c1a125f1f39 |
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