MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to domains that appear to be part of a link farm designed to artificially boost search engine rankings. The document body, though malformed, suggests a lure related to a 'study guide'. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the suspicious linking behavior. No scripts were extracted, but the primary attack vector appears to be directing users to malicious or deceptive external websites.
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://everetttreeservicepros.com/uploads/1/3/1/1/131164440/131164440.html#fundamentals+of+psychology+in+context+study+guide PDF link annotation
- http://janekirby.info/uploads/1/3/0/8/130814124/rasax.pdfIn PDF document text
- http://spiritualdirector.life/uploads/1/3/0/7/130739756/xifoxutimulapa.pdfIn PDF document text
- http://frogpigpug.com/uploads/1/3/0/6/130639842/nokoge.pdfIn PDF document text
- http://zellabarket.com/uploads/1/3/0/7/130738623/zevafuni-tubali-fularupe.pdfIn PDF document text
- http://stateofsoundstudios.com/uploads/1/3/0/4/130477864/3982036.pdfIn PDF document text
- http://scanproky.com/uploads/1/3/0/4/130483253/9618929.pdfIn PDF document text
- http://youthgrace.org/uploads/1/3/1/6/131636988/c063b.pdfIn PDF document text
- http://fastagentincome.info/uploads/1/3/1/3/131384489/9f905.pdfIn PDF document text
- http://rachelliu.me/uploads/1/3/0/4/130491253/dc71bb2760.pdfIn PDF document text
- http://admin.hwupenyuproject.org/uploads/1/3/0/6/130639784/paxapuselipegi.pdfIn PDF document text
- http://wolfecityhomecoming.com/uploads/1/3/0/3/130379049/vigira.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://faxonitu.files.wordpress.com/2020/06/40099122315.pdfIn PDF document text
- https://jizogal.files.wordpress.com/2020/06/sokosak.pdfIn PDF document text
- https://puwubovefije.files.wordpress.com/2020/06/64052744939.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_off00009410.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9410 | 11024 bytes |
SHA-256: 9950c195416852f1d67126df3015a27f9352611d433b0af7787418e65e6fb6f7 |
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