MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF file was flagged by an ML classifier as malicious and contains a large number of external links, characteristic of a link farm. The heuristic PDF_SEO_LINK_FARM specifically indicates a mass of external PDF links, with encountermanagementsystem.com being a dominant host. While no scripts were extracted, the sheer volume and nature of the embedded URLs suggest a malicious intent, likely to manipulate search engine results or distribute further malicious content through the linked PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://ashpeters.net/uploads/1/3/0/6/130639203/130639203.html#nuestras+sombras+maria+teresa+budge+pdf PDF link annotation
- http://encountermanagementsystem.com/uploads/1/3/1/3/131380641/1354795.pdfIn PDF document text
- http://ideasustainability.com/uploads/1/3/0/7/130776149/loxapovupusexulifu.pdfIn PDF document text
- http://fiveshortblastsshoreham.com/uploads/1/3/0/6/130620423/dexuwabivawe-nigutunu-viram.pdfIn PDF document text
- http://74-123-78-212.mgwnet.com/uploads/1/3/0/5/130539373/zepazakutuzitum.pdfIn PDF document text
- http://techdirectorsclub.com/uploads/1/3/0/9/130969937/6694c4e2ce5.pdfIn PDF document text
- http://bmarkbenefits.com/uploads/1/3/0/6/130620530/nejituwijo.pdfIn PDF document text
- http://ninjadrone.pro/uploads/1/3/0/5/130551859/tivososevoroxibazi.pdfIn PDF document text
- http://lisarsmithspiritualquest.com/uploads/1/3/0/7/130738812/netojediroxu-pojiwokevi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fojajuxebi.files.wordpress.com/2020/06/76069411502.pdfIn PDF document text
- https://pegubup.files.wordpress.com/2020/06/sopopi.pdfIn PDF document text
- https://janolapanak.files.wordpress.com/2020/06/sowogegep.pdfIn PDF document text
- https://vorosatigeb.files.wordpress.com/2020/06/webafidaworedejepodefo.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 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005901.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5901 | 10544 bytes |
SHA-256: 3bc072d331dc5645f03781f97a5a833f26b10331c8e22ae160091e7f870c23a1 |
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