MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of external links, disguised as printable math worksheets, which is indicative of a link farm or SEO spamming tactic. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs suggests an attempt to redirect users to potentially harmful sites. No scripts were extracted, but the sheer volume of outbound links points to a malicious intent to drive traffic to external resources.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 https://traffine.ru/123?keyword=cat+in+the+hat+math+worksheets+printable
- https://cdn-cms.f-static.net/uploads/4380876/normal_5f945f02ae1ff.pdf
- https://cdn-cms.f-static.net/uploads/4369664/normal_5f88a5a503b8a.pdf
- https://cdn-cms.f-static.net/uploads/4366647/normal_5fa407484f962.pdf
- https://tuboxivodase.weebly.com/uploads/1/3/4/3/134387713/fimas.pdf
- https://cdn-cms.f-static.net/uploads/4374359/normal_5f94efe8d5e44.pdf
- https://sutogibigasoju.weebly.com/uploads/1/3/1/0/131070189/8043838.pdf
- https://cdn-cms.f-static.net/uploads/4376849/normal_5f9e8f755c9a8.pdf
- https://cdn-cms.f-static.net/uploads/4411682/normal_5f99e7e98085f.pdf
- https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/lulodegoner.pdf
- https://wanuwoziburake.weebly.com/uploads/1/3/4/4/134458428/betofuzibikiruvi.pdf
- https://juporolo.weebly.com/uploads/1/3/1/3/131380745/84683d2356.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/bidivo/44085226236.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000062e2.bin523aa37cd827884f50daedeead9ba8c15cd8eb12e8ac5cd33c933a4c3c3a0858 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62E2 | 5260 bytes |
font_01_sfnt_off0000749d.bin2e9e367d53f879ac0652ce558fa99f527d2dddbfc8fd0db8aa7bbe74e081cbfb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x749D | 10720 bytes |
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