MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous external links, a technique often used for SEO spam or to redirect users to malicious sites. The document body, though partially corrupted, suggests a lure related to educational worksheets. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates a link farm strategy, aiming to manipulate search engine rankings or distribute traffic to various domains. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://jmsst2.com/uploads/1/3/1/6/131636682/131636682.html#distributive+property+worksheets+for+6th+graders PDF link annotation
- http://autooutsource.com/uploads/1/3/0/4/130436492/3382492.pdfIn PDF document text
- http://teboxretail.no/uploads/1/3/0/9/130969375/d63701c35a1363.pdfIn PDF document text
- http://palivillage.com/uploads/1/3/0/4/130476908/jupuxeletuwufa-nolalapovebim.pdfIn PDF document text
- http://northshorecleaners.net/uploads/1/3/0/4/130483864/defiwoxo_bipekanuxizobu_xakojibanemal.pdfIn PDF document text
- http://gregmatsumoto.com/uploads/1/3/0/5/130539679/fimobakudokimu_paxisim_sotenigulora_fonojirigamoba.pdfIn PDF document text
- http://nadiafarah.com/uploads/1/3/0/7/130775685/lejemazij_biziwa.pdfIn PDF document text
- http://topcincinnatibeautysalontraining.com/uploads/1/3/0/6/130620715/vofife.pdfIn PDF document text
- http://manushsciencetechnologies.com/uploads/1/3/0/7/130739288/xomiferamukevuz.pdfIn PDF document text
- http://internationalcenterformeditation.com/uploads/1/3/0/6/130620677/leval.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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/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
- 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_off00006401.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6401 | 10796 bytes |
SHA-256: 4764d17d6248233119bb36c8c5378b16e3dc918981541a36471dcedd2a277970 |
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font_01_sfnt_off00008952.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8952 | 16116 bytes |
SHA-256: de5e424296fca6632de503ebef56d41c9898c13bba2aba3354ff7f3c3578a82d |
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