MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1105 Ingress Tool Transfer
The PDF file contains a large number of embedded external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact payload or purpose beyond the link farm.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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://ne-surgerycenter.net/uploads/1/3/1/1/131163666/131163666.html#trabajo+de+parto+prematuro+pdf
- http://bplogworldwide.net/uploads/1/3/0/7/130776078/fevoxawojada_pajom_sowari.pdf
- http://slotuin.com/uploads/1/3/0/9/130969000/rijanibeki.pdf
- http://katefalor.com/uploads/1/3/0/6/130639173/8599178.pdf
- http://raimelamb.com/uploads/1/3/0/7/130740259/lesonit.pdf
- http://treeinjectionsystems.com/uploads/1/3/0/6/130620326/jexujidomape.pdf
- http://garciaspinecenter.net/uploads/1/3/0/2/130291507/1452871.pdf
- http://kravmagaglobal-orange.com/uploads/1/3/0/5/130539341/firawakezete-xokunevedexex-geter.pdf
- http://tailgate4dogs.net/uploads/1/3/0/6/130639725/sumisosoweguvanijexe.pdf
- http://eat-lunch.com/uploads/1/3/0/5/130543364/1541330.pdf
- http://binhamvillagehall.com/uploads/1/3/0/5/130543685/28859d4b5b247c9.pdf
- http://mypuriumsambi.net/uploads/1/3/0/2/130288932/vudixekalove.pdf
- http://fatinafendi.com/uploads/1/3/0/9/130969085/838738.pdf
- http://aupaireducation.com/uploads/1/3/0/7/130776536/jojiramab.pdf
- http://jonesdoghomes.com/uploads/1/3/0/6/130621579/fixogave.pdf
- http://bestequippedtechnician.com/uploads/1/3/0/3/130323328/5235080.pdf
- http://olivethechug.com/uploads/1/3/0/2/130270885/fopesaxinu.pdf
- http://diannehatkecoaching.com/uploads/1/3/0/8/130814337/wenabozuxilatepefana.pdf
- http://lafolie.net/uploads/1/3/0/6/130620484/2580727.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005927.binf48a88d78ee84ade5a19b2b4a0637199ce148e65094b933906dafe37ead07662 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5927 | 6852 bytes |
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