MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a significant number of embedded links, with one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains text related to 'perfecting your english pronunciation' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external PDF links points towards a link farm or SEO manipulation tactic.
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=perfecting+your+english+pronunciatio
- http://lagumip.ekhaonline.org/uploads/1/3/1/0/131071164/572f4ccb5.pdf
- http://files.playtherapyworks.com/uploads/1/3/0/7/130775503/xogixo.pdf
- https://cdn.shopify.com/s/files/1/0429/0641/9367/files/practical_reliability_engineering_download.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovegutug.pdf
- https://cdn.shopify.com/s/files/1/0433/3810/5000/files/pitokarizirin.pdf
- https://cdn.shopify.com/s/files/1/0432/0237/9939/files/25698810872.pdf
- https://cdn.shopify.com/s/files/1/0450/5636/0600/files/poropafon.pdf
- https://cdn.shopify.com/s/files/1/0430/8323/5489/files/dokafebevurawetuwazefojez.pdf
- https://cdn.shopify.com/s/files/1/0429/8814/2743/files/86444287308.pdf
- https://cdn.shopify.com/s/files/1/0427/5005/0460/files/25520792936.pdf
- https://cdn.shopify.com/s/files/1/0433/0569/7438/files/pawimama.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000047e8.bin50b6492c02c24a50c187fd559b4085bb9e1faf824cc26062286779daa00e77e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47E8 | 5260 bytes |
font_01_sfnt_off000059c5.bin2b2daa875bdbe125ca9b4a7a2b6e66cc158cfd801f72a1672c95431cc63ce877 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59C5 | 9948 bytes |
font_02_sfnt_off00007bdc.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BDC | 4324 bytes |
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