MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF document contains a large number of external links, many of which point to other PDF files hosted on similar subdomains. The 'SE_CALLBACK_LURE' heuristic indicates the document is designed to trick users into calling a phone number, consistent with callback phishing or tech-support scams. The embedded URLs likely serve as part of this lure, potentially leading to further malicious content or information gathering.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 5
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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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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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External URI info PDF_URIPDF contains an external URL action
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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 http://mail.nubischegeiten.com/uploads/1/3/0/5/130543684/130543684.html#spypoint+ir-7+manual PDF link annotation
- http://mail.rechargedmiracles.nl/uploads/1/3/0/5/130550930/duwudep.pdfIn PDF document text
- http://phoneserver2012.pinnacleven.com/uploads/1/3/0/6/130621781/d7725.pdfIn PDF document text
- http://hostmaster.mollycoddleparties.com.au/uploads/1/3/0/2/130287426/1285064.pdfIn PDF document text
- http://lorrainekurata.com/uploads/1/3/1/1/131164435/befofupap-xidinozavuf-dawobofori.pdfIn PDF document text
- http://thumphreys.com/uploads/1/3/1/3/131380383/golafeza.pdfIn PDF document text
- http://daltonyogadance.com/uploads/1/3/0/6/130604562/joroja.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off00004c26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C26 | 4868 bytes |
SHA-256: 96a549364eed13523971820cd3ba9dba8a58f6a639bb799e7e873d72352061c7 |
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font_01_sfnt_off00005c92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C92 | 10324 bytes |
SHA-256: eb55caf6219649ed5bb6adbe63dff86296c6cff21465f2c6942c977ef6cc8073 |
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