MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains numerous embedded links, with the primary one leading to a known malicious redirector. The document body, though partially corrupted, includes text suggesting a translation context, which is likely a lure. The presence of a callback phishing lure heuristic further supports the social engineering aspect of this attack. The embedded URLs are designed to redirect users to potentially malicious 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) or Microsoft license-boilerplate 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=t%25C5%2582umaczenie+zda%25C5%2584+angielski+pdf In PDF document text
- http://files.westchorus.com/uploads/1/3/2/6/132683181/bimamojuzusuw_kazifonefe.pdfIn PDF document text
- http://files.coffeejustgothealthier.com/uploads/1/3/0/9/130969904/0c3b0409f2b283b.pdfIn PDF document text
- http://files.spsyc.online/uploads/1/3/1/8/131856545/08e34.pdfIn PDF document text
- http://files.thesetbuilder.org/uploads/1/3/1/3/131378780/getatifani.pdfIn PDF document text
- http://files.thecitydesk.com/uploads/1/3/1/6/131637218/15fa4e184963.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/1/0433/3237/0584/files/34971037572.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0595/2671/files/nozuzefaxojirorux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2418/7549/files/15096462632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8802/7556/files/36102284348.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nojigepinipefonumupitos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1785/4373/files/52835156380.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1110/3128/files/political_economy_meaning.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8492/2526/files/81547428422.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6999/7217/files/25162686268.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5157/3657/files/89561834731.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8009/6667/files/yahtzee_simulator_matlab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2286/0966/files/nerononitu.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_off00006eb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EB4 | 5624 bytes |
SHA-256: d41b796f3dfdd5e18aa11bc58032551409b8026d1a2a7c246d96dc6e11284bff |
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font_01_sfnt_off0000819f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x819F | 11568 bytes |
SHA-256: 8c15ace8fc198697c5299801fe59567c11d23ce9ac950bd9128c97ac34669c33 |
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