MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as information about tax amendments. It also hosts a large number of external PDF links, suggesting a link farm for SEO manipulation or to distribute further malicious content. The ML classifier strongly indicated maliciousness, and the embedded URLs are the primary indicators of compromise.
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=income+tax+amendments+for+fy+2020+19+pdf
- http://files.syandash.co.uk/uploads/1/3/0/8/130873876/baguf-gubiwapeb.pdf
- http://files.ibunson.com/uploads/1/3/2/6/132682293/8590363.pdf
- http://files.wadearave.com/uploads/1/3/1/0/131070374/faf268.pdf
- http://files.barbycahillfineart.com/uploads/1/3/1/8/131871605/nisimarij.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gejazopemovaro.pdf
- https://cdn.shopify.com/s/files/1/0431/4795/2292/files/ledumewadezasidulido.pdf
- https://cdn.shopify.com/s/files/1/0429/9672/7957/files/bopolegosavidaduzupepu.pdf
- https://cdn.shopify.com/s/files/1/0434/1288/1564/files/susalejaj.pdf
- https://cdn.shopify.com/s/files/1/0429/5180/3033/files/jagovalifajalunolulas.pdf
- https://cdn.shopify.com/s/files/1/0431/7026/7300/files/angiotensin_converting_enzyme_ace_inhibitors.pdf
- https://cdn.shopify.com/s/files/1/0430/8575/8628/files/90720845607.pdf
- https://cdn.shopify.com/s/files/1/0437/5805/9674/files/basic_formulas_for_aptitude_test.pdf
- https://cdn.shopify.com/s/files/1/0428/5172/9567/files/susozejamesosonuvoginin.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_off000060c8.binf1b2bba462a90ed43d4353495560b0d22ec70dffabba99d10eced36e02f1aa84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60C8 | 5860 bytes |
font_01_sfnt_off000074b2.bin64cf76e3e64a5033abe656a9e5e651dd8d295ed28236e9a3805ebbb5159d55a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74B2 | 13744 bytes |
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