MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple critical heuristics as malicious, including a link to known malicious redirector infrastructure and a large link farm on disposable hosting. The ML classifier also assigned a high probability of maliciousness. The embedded URLs and the nature of the link farm suggest an attempt to manipulate search engine results or distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://dafemum.ru/wix?keyword=early+childhood+theorists+pdf In PDF document text
- http://pewadulojuba.mypressonline.com/how_to_take_dmv_written_test_during_covid_19.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4390329/normal_5fc64a4dccb48.pdfIn PDF document text
- https://volifinidolil.weebly.com/uploads/1/3/0/8/130873876/pixizapimukusak_fimivawajar_vivoxez_ratuzexepipofa.pdfIn PDF document text
- https://fafenerukore.weebly.com/uploads/1/3/1/3/131398145/4402739.pdfIn PDF document text
- https://vezutokabev.weebly.com/uploads/1/3/4/7/134758566/rebiluz.pdfIn PDF document text
- https://xidokuwu.weebly.com/uploads/1/3/1/4/131453793/8714144.pdfIn PDF document text
- https://zaxizibu.weebly.com/uploads/1/3/4/6/134672664/ffe53.pdfIn PDF document text
- https://xoselupovogim.weebly.com/uploads/1/3/4/6/134610719/mepawarijine.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4443819/normal_5fd06b61918f1.pdfIn PDF document text
- https://jukorupojos.weebly.com/uploads/1/3/5/3/135344641/325996a3a58.pdfIn PDF document text
- https://sewizafisebe.weebly.com/uploads/1/3/1/4/131437566/kevitepoweruwov.pdfIn PDF document text
- https://cdn.sqhk.co/ferorigife/J5u0jib/seguzibabovefezi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389080/normal_600f03fb35268.pdfIn PDF document text
- https://cdn.sqhk.co/terasovo/bwhhgdI/zidesitog.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/jenisozazewubo/34193459530.pdfIn PDF document text
- http://pusapovewazigu.onlinewebshop.net/how_to_be_a_better_husband_book.pdfIn PDF document text
- https://s3.amazonaws.com/vibasujefir/free_music_app_store.pdfIn PDF document text
- http://weparaxopulo.atwebpages.com/introduction_to_tensor_analysis_and_the_calculus_of_moving_surfaces_download.pdfIn PDF document text
- http://tefetuzuzip.myartsonline.com/matlab_for_loop_matrix_elements.pdfIn PDF document text
- https://s3.amazonaws.com/lerezazo/lodudofudifeniju.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://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_off0000e685.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE685 | 5304 bytes |
SHA-256: 6a94f14d43cca9c4e94ed7a91e5ae700042677b8fbfc2c5ec03cb21695e05520 |
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font_01_sfnt_off0000f895.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF895 | 10000 bytes |
SHA-256: 4a0206874929fb5432777540f67b3a4390723ff19e892abcddc5395dac10d592 |
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