MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded links that are part of a link farm, with one critical link pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a free VPN, aligning with phishing or scam tactics. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.
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=thailand+vpn+free+for+pc
- http://files.premiertruckparts.ca/uploads/1/3/1/1/131164236/repijidabowuji_luketuzafadu_dudeli_noramasemaga.pdf
- http://files.rachaeldzikonski.com/uploads/1/3/0/8/130874204/9630478.pdf
- http://nuxumuvir.babyg-lash.com/uploads/1/3/0/7/130775583/1617803.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/0167/5939/files/79850149922.pdf
- https://cdn.shopify.com/s/files/1/0432/1571/6516/files/boribatapinarulakanuf.pdf
- https://cdn.shopify.com/s/files/1/0439/3389/2763/files/acc_cement_annual_report_2020.pdf
- https://cdn.shopify.com/s/files/1/0432/7381/4182/files/chrysler_crossfire_srt_6_performance_upgrades.pdf
- https://cdn.shopify.com/s/files/1/0428/6555/7671/files/35644888517.pdf
- https://cdn.shopify.com/s/files/1/0431/2412/9952/files/braking_distance_formula.pdf
- https://cdn.shopify.com/s/files/1/0433/8240/7335/files/fakunenugatawujudodujogo.pdf
- https://cdn.shopify.com/s/files/1/0433/0491/1006/files/50713599635.pdf
- https://cdn.shopify.com/s/files/1/0433/5727/4270/files/9484530315.pdf
- https://cdn.shopify.com/s/files/1/0428/8462/8633/files/felt_bikes_size_guide.pdf
- https://cdn.shopify.com/s/files/1/0432/7194/6398/files/64641432293.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_off0000877f.bin7195b7a69ca2cd2f37dc366ffe8c057c2faff3defc10ba8112d27b454d025161 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x877F | 5072 bytes |
font_01_sfnt_off000098bc.bind01077cf78181e9718855bf4d0cbb095a75292c5998501031c6be8cf3b81f15c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98BC | 10520 bytes |
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