MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links to various domains, a technique commonly used for SEO poisoning or to redirect users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this pattern, indicating a likely attempt to distribute malware or phishing content through a network of linked PDFs. The ML classifier also strongly flagged this PDF as malicious.
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://teshuvah.international/uploads/1/3/1/4/131438571/131438571.html#ejercicios+letra+script+para+ni%C3%B1os PDF link annotation
- http://powdermillbusinesscenter.com/uploads/1/3/0/6/130621544/490ef13.pdfIn PDF document text
- http://designsbydarline.com/uploads/1/3/0/4/130476778/popus.pdfIn PDF document text
- http://clubxperienceclient.com/uploads/1/3/0/8/130874224/bevezuxomog.pdfIn PDF document text
- http://onecontactoffice.com/uploads/1/3/0/7/130775603/5725925.pdfIn PDF document text
- http://myguillermofloresuagro.net/uploads/1/3/0/5/130542755/vijupibegulararojira.pdfIn PDF document text
- http://ribbonspaperscissors.com/uploads/1/3/1/4/131438783/vodigizubopuwam-najuvoge-koxunaxed-geran.pdfIn PDF document text
- http://azusadoglovers.org/uploads/1/3/0/6/130621865/4648706.pdfIn PDF document text
- http://aircontrolexperts.com/uploads/1/3/0/7/130776263/zinizovufogetof-jelavepu.pdfIn PDF document text
- http://teqnifi.com/uploads/1/3/0/4/130490245/dozeloru_kariril_vaniwugazeza.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000074d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74D4 | 9424 bytes |
SHA-256: dd45e6177be9432767011e6e42bb24267f9b79fa831ab50d4bc5bc839ff5d0f2 |
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font_01_sfnt_off000096de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96DE | 16168 bytes |
SHA-256: 6f5589cf1763d9b30124e401b8407e77d4f7b0da0f268c3843f690d2cc1178e8 |
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