MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains multiple heuristics indicating malicious intent, including a link to a known malicious redirector and a large number of external PDF links, suggesting a link farm. The document body, though heavily obfuscated, contains a URL that aligns with the redirector heuristic. The presence of a callback lure further supports a phishing or scam pretext. The primary attack pattern involves redirecting the user to a malicious site via the embedded link.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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=eccentric+training+pdf In PDF document text
- http://files.dare2bu.ca/uploads/1/3/1/3/131383892/fufogobazi-bakonolat-fogovemi-voxaz.pdfIn PDF document text
- http://files.beeldstaal.com/uploads/1/3/1/4/131437530/zadukavoxined-detakasatofusa-sazojo.pdfIn PDF document text
- http://files.mybridgefilms.com/uploads/1/3/0/7/130775014/jegudinem.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/1/0429/8529/1937/files/puvukemivejokazufovofegad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4587/8941/files/zadakujufuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8797/8913/files/56753473922.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9338/5633/files/vikenuxamexuwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8436/5476/files/joxikejex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4777/8469/files/musujemodazu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7438/8119/files/jasef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4326/6458/files/20062885603.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0263/4148/files/dnd_4e_monster_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7014/4166/files/dolalefilakutovatotinasaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0885/2117/files/dotuwufanipetufedugoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8384/2215/files/java_circular_buffer.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a5bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA5BB | 5068 bytes |
SHA-256: 31ecd38beb21dd1e4f555ad2b26668a587c37ab581fd0514060a8103274771cb |
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font_01_sfnt_off0000b716.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB716 | 13348 bytes |
SHA-256: 616f9f2d33000a2ab6f4e9033a0d29aa4471d533ee4435582966f2f38ee03fb9 |
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