MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that points to a known malicious redirector. This suggests the primary intent is to lead the user to a malicious site, potentially for phishing or further malware delivery. The presence of a callback lure heuristic further supports a social engineering attack vector.
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=southwest+media+college+pdf In PDF document text
- http://laxit.chris-ferrer.com/uploads/1/3/1/3/131379706/lisiriruge-mamupisala-zulofememekijar.pdfIn PDF document text
- http://files.krwoodworkings.com/uploads/1/3/1/8/131871894/1591208.pdfIn PDF document text
- http://files.sundanceretrievers.com/uploads/1/3/0/7/130740065/ea06de436e3771f.pdfIn PDF document text
- http://files.katherinemcdowell.net/uploads/1/3/2/6/132681062/tinamekenoj-zepizusu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/9745/6801/files/tilipus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3301/6982/files/sigusomekinadixegodita.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7692/0220/files/27182285130.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9015/7474/files/xubupuredigewigixugo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8800/2710/files/puberukul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2137/6410/files/30338925724.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26450283228.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2965/9805/files/vizotulurusijajuxepavuten.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4877/2508/files/lazunutudu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/7899/6383/files/calicut_university_bcom_syllabus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0236/3045/files/93736768490.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9542/4165/files/31003003466.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006439.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6439 | 5444 bytes |
SHA-256: f09a7632c2ad407f53b0a8620287558ab18e76299bff5d14ead5ad67fa3bc445 |
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font_01_sfnt_off000076df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76DF | 10496 bytes |
SHA-256: ac3613c0557b8395e5ee8f9d966120459b55638759ae353ab7ff1bb5764d723d |
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font_02_sfnt_off00009ac9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AC9 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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