MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The presence of a link farm and a callback phishing lure further supports the malicious intent of directing users to external, potentially harmful, content.
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.com/pify?keyword=descargar+antivirus+para+android+apk+uptodown In PDF document text
- http://wepaxuma.faithymystory.com/uploads/1/3/0/7/130740434/wuzisituboser.pdfIn PDF document text
- http://files.mountainmattressaz.com/uploads/1/3/0/7/130776275/besunigutixo.pdfIn PDF document text
- http://files.teamfitnessonline.com/uploads/1/3/1/4/131482821/d9f955167.pdfIn PDF document text
- http://files.camarasailing.com/uploads/1/3/0/7/130775817/zavelewotaru.pdfIn PDF document text
- http://gotafan.puertoricandj.com/uploads/1/3/2/8/132814439/38e20004.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/1/0433/5665/1669/files/feroz_ul_lughat_arabic_to_urdu_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9798/1089/files/fekitenowev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5294/8901/files/60270573366.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7335/3366/files/what_is_electric_current.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4836/9319/files/mirelotasuwuxisa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/koxumugude.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2544/0669/files/69454143459.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4618/3847/files/ripekepovubevivuzupojijap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9133/6099/files/13106906166.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/4333/5837/files/geometry_shapes_names.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_off00005746.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5746 | 5424 bytes |
SHA-256: 91bd82fcd407f12493dabaaf79cfec3bf5fc07b66b177f3aed61146775b9cbde |
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font_01_sfnt_off000069e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69E2 | 9988 bytes |
SHA-256: 5a3b322e51bf99440f93644c757a2f0dbbbffb9087f4cf1fabe03e334410a6fb |
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