MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a known malicious URL, masquerading as content related to BTS lyrics. The ML classifier strongly indicated maliciousness, and the PDF structure suggests a link farm designed to distribute further malicious content. The primary attack vector appears to be social engineering via a deceptive lure, leading users to a malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=bts+love+yourself+%25E7%25BB%2593%25E2%2580%2598+answer+epiphany+lyric In PDF document text
- http://files.roesselerrace.com/uploads/1/3/1/8/131856392/7287712.pdfIn PDF document text
- http://files.essentialmensclinic.com/uploads/1/3/0/7/130739778/3881631.pdfIn PDF document text
- http://files.upperskagitlibraryfoundation.org/uploads/1/3/0/7/130775998/fezinajelagevub.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/1/0452/1653/0589/files/9704927133.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9191/1066/files/dodonojonedak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5077/8269/files/musikawidiwotor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9132/9173/files/gireniranes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3436/9438/files/da_form_31_fillable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7348/6496/files/witikimevi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3273/1030/files/17504334575.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6618/6135/files/vepuvixupenetiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5057/3724/files/masterbuilt_sportsman_elite_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/cateterismo_vesical_en_nios.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6521/2066/files/market_analysis_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2509/5062/files/free_pbr_textures.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C73 | 15264 bytes |
SHA-256: 5c3f4fe568181770e5bfe133cf7e8e2216813d23c06d1c7a631166d360daf8c0 |
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font_01_sfnt_off00009ab5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AB5 | 3176 bytes |
SHA-256: 6007794a68dffb4e626f0b2ed814cdf97e9d9237345a0c7ed3f8d6b36e1c1f69 |
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font_02_sfnt_off0000a5dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA5DD | 5464 bytes |
SHA-256: 2aa207fb1812897c2a2a78085bbebbd9276f07a621f8ed5954dce10c4fbfaf57 |
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font_03_sfnt_off0000b891.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB891 | 13460 bytes |
SHA-256: 83f928cfd690d37ec35f94fe1b03bba3948617bfab509f540f050161242dcd15 |
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