MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links, many of which point to other PDF files with numeric slugs, indicating a link farm or SEO abuse tactic. The document body, though partially corrupted, contains text related to electrical power formulas and references the wkhtmltopdf tool, suggesting a deceptive lure. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous embedded URLs supports a malicious intent, likely to drive traffic to malicious sites or host further malicious content.
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://kenhtienso.net/uploads/1/3/0/2/130289530/130289530.html#formulas+para+calcular+potencia+activa+reactiva+y+aparente
- http://powerconcious.com/uploads/1/3/0/8/130814341/3555178.pdf
- http://placeofthefuture.co/uploads/1/3/1/3/131380885/zabotulerirerazuvos.pdf
- http://gloriousgardens.net/uploads/1/3/0/4/130435725/fukurilo-fexolesafunug-tukupora-bewejenofozakix.pdf
- http://ashleywebernd.com/uploads/1/3/1/0/131071184/7906a4ae48.pdf
- http://thequickenloanspartnership.com/uploads/1/3/0/8/130814178/5607867.pdf
- http://smoknmeatsandbbq.com/uploads/1/3/0/2/130274376/fimofasodilix_mefaso_sesonafoviposa_tilitotepox.pdf
- http://gdgoenkamun.com/uploads/1/3/0/4/130479008/3f785f.pdf
- http://edtechjunkie.com/uploads/1/3/0/5/130551991/zesadabut.pdf
- http://mal-test.com/uploads/1/3/1/0/131070146/bejokomawe.pdf
- http://pokeplayerhq.com/uploads/1/3/0/5/130588769/6504687.pdf
- http://thehandymanservice.org/uploads/1/3/0/6/130603985/0cacdf44f1a9f.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009785.bincd050e6e562c5c72fd6edfdad8bfe6217b217cfb90adffc87d646cb45a66f4c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9785 | 9400 bytes |
font_01_sfnt_off0000b9d4.bin83a2c746099568d75cfa54e2bb454999a111f5f830f0a078b07526cc6510b009 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9D4 | 3304 bytes |
font_02_sfnt_off0000c564.bin4679165d343df55ddb82ee031293f7dcd8e6238be598fb97e9e74909e3fbbded |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC564 | 16288 bytes |
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