MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, appears to be related to a 'trophic level worksheet answer key', which is likely a pretext to drive traffic to malicious URLs. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://vilenefex.ru/wix?keyword=trophic+level+worksheet+answer+key PDF link annotation
- https://nunigagajil.weebly.com/uploads/1/3/4/7/134751499/9515929.pdfIn PDF document text
- https://vukojudal.weebly.com/uploads/1/3/5/3/135317211/vevek.pdfIn PDF document text
- http://usersdeviceprotectionservice.site/dungeon_builder_s_guidebookstsw1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454432/normal_5fdab43cc87ce.pdfIn PDF document text
- https://sebezubajisiv.weebly.com/uploads/1/3/0/7/130740163/1025980.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369648/normal_5fe16eb97818b.pdfIn PDF document text
- http://helpcreditscore.info/lewoxemexogerovumoviwa7vh9q.pdfIn PDF document text
- http://giocodigital.space/checkers_cheap_menuv6899.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404103/normal_5ff9b33611636.pdfIn PDF document text
- http://bioforce-co.site/who_is_egg_in_a_knight_of_the_seven_kingdomsbe16q.pdfIn PDF document text
- http://top-salez.site/blackpink_song_forever_young663wu.pdfIn PDF document text
- https://totamozosapopa.weebly.com/uploads/1/3/4/7/134712517/nefatudatuwukuti.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/rezugekolaba/72647480664.pdfIn PDF document text
- https://cda84be5-0c54-4c05-8389-97bb004c798d.filesusr.com/ugd/fa9f00_d3c132009fc241a899ab4f1dcf06ecb3.pdf?index=trueIn PDF document text
- https://245df057-3761-468b-8bc4-2c9c6734f7c7.filesusr.com/ugd/06c8e1_0b3e30da119147dda20e2d9c5155f6bc.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/muxegeza/gusibowazopawererit.pdfIn PDF document text
- https://22fea36a-5e19-4af1-b4aa-fe6e1efe0ee9.filesusr.com/ugd/b5a188_ac637d972fa841809088e6310cff4aa8.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/56bcb3c6-1cff-4895-b631-5f6e91e52f25/how_old_is_klaus_baudelaire_in_real_life.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c2ef1245-47b4-4fbe-b419-27e267fdf568/how_to_use_imovie_on_my_iphone.pdfIn PDF document text
- https://438c9214-13ba-44a2-8469-a4c97ff43377.filesusr.com/ugd/5d46a0_2ef93e76406742e1985d6cfdfc267c29.pdf?index=trueIn 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e0af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0AF | 5288 bytes |
SHA-256: 569c344b611621ed3e2ef4316215dde6bb792cb9e14d8ec490fbebf2f5060fa2 |
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font_01_sfnt_off0000f2c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2C0 | 10512 bytes |
SHA-256: 429f8bf02b1445ed3dcc76f1548b5b82a9bdf45938904d54a39c1b69680e54f4 |
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