MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The document body, while heavily obfuscated, appears to contain the URL 'https://ttraff.com/pify?keyword=irregular+verbs+worksheet+esl+pdf', suggesting a lure to disguise malicious activity. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms a malicious intent to lead users to potentially harmful content.
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/pify?keyword=irregular+verbs+worksheet+esl+pdf
- http://files.sendingasmokesignal.org/uploads/1/3/1/8/131856277/guxovago.pdf
- http://gikib.parentchildclinic.com/uploads/1/3/0/8/130874474/gofibanara_gasibiv_kebagaxevojige.pdf
- http://files.jblocklyn.com/uploads/1/3/0/7/130739658/1436062.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/5901/9933/files/kotevim.pdf
- https://cdn.shopify.com/s/files/1/0435/7973/6223/files/gevobov.pdf
- https://cdn.shopify.com/s/files/1/0431/0089/7434/files/49546275531.pdf
- https://cdn.shopify.com/s/files/1/0430/8808/5145/files/rotobuvibibaxov.pdf
- https://cdn.shopify.com/s/files/1/0431/1551/1968/files/mopapunumidemigo.pdf
- https://cdn.shopify.com/s/files/1/0432/3033/1039/files/gst_tax_slab_for_ay_2020_19.pdf
- https://cdn.shopify.com/s/files/1/0433/4842/6902/files/gosukodumeniredizifit.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68905528383.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000615c.bin3da64560479120264ab3f2f1b1616948993876e1fc125736be11bdbab806e865 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x615C | 5596 bytes |
font_01_sfnt_off00007469.binae71fca9cc99765268323716da2cb798616cbe3cc5e9afd4e625dea84bdb0b0a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7469 | 9912 bytes |
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