MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to disposable domains and forming a link farm, indicating a phishing or SEO abuse tactic. The embedded content, though partially corrupted, suggests a lure related to learning Korean. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to malicious sites or distribute further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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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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://baarspo.ru/wb?keyword=how%20to%20learn%20speaking%20korean%20fast PDF link annotation
- https://fewarajinu.weebly.com/uploads/1/3/4/2/134235366/wazezonilutube_logokakapam_nikajejolok_vosogipowobuj.pdfIn PDF document text
- http://wezotodatixazu.iblogger.org/failure_analysis_report_template.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368495/normal_6039615578eb0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463538/normal_602210a22406f.pdfIn PDF document text
- https://sigoxavofilaza.weebly.com/uploads/1/3/4/6/134697452/bd932c0c30632.pdfIn PDF document text
- https://soregekewo.weebly.com/uploads/1/3/4/2/134266411/katinirejab.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446283/normal_5fe5a1e3dc4b4.pdfIn PDF document text
- https://musazulawikale.weebly.com/uploads/1/3/5/3/135305526/8813507.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412902/normal_603d8d9817a0c.pdfIn PDF document text
- https://mulunumidivopiz.weebly.com/uploads/1/3/5/3/135393794/8e3a30a94c3b794.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/bcea10f6-193a-4795-b8bd-95149b530557/all_the_bright_places_film_plot_summary.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6badcf27-a223-4541-8118-ae498b09eeba/32541692633.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/271066ed-f5ca-4d2e-8959-9d62b3d68f43/9166167302.pdfIn PDF document text
- https://s3.amazonaws.com/bugutaj/free_prezi_templates_medicine.pdfIn PDF document text
- https://s3.amazonaws.com/tunenijexe/vadab.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e179f6cd-0fd9-4b89-9b4b-f50c802c5ce8/plantronics_cs540_wireless_headset_charger.pdfIn PDF document text
- http://rulukufijozijud.rf.gd/84759511480.pdfIn PDF document text
- https://s3.amazonaws.com/guwutivupudutu/transformational_grammar_theory.pdfIn PDF document text
- https://s3.amazonaws.com/dozuga/goveriwukuwolopak.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/580c184d-b933-4c19-b254-11619d9eefb6/brother_575_fax_machine_reviews.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3d1506be-9381-42e6-9b91-7a64d7aa2a24/warrior_cats_names_list.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eb954598-5701-421b-8ec5-8a17894c0e13/diablo_reaper_of_souls_ps4_gameplay.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/526bef8c-5512-4327-86be-bae25576cffe/what_is_code_oe_on_kenmore_washer.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011fdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FDB | 5824 bytes |
SHA-256: 60867dfab0e963664d9a5d6d726f428c9f608f0efdbd2cc7ebb19888b266ebf7 |
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font_01_sfnt_off000133b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133B4 | 5184 bytes |
SHA-256: 292ee72d79c51b158891bda23890299e679e04117984bbb06973749c43f4f0d2 |
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font_02_sfnt_off00014581.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14581 | 10940 bytes |
SHA-256: 9714fd5490580bf6eb210975a09a0cafca80ed15222ad4044a6a43186e861970 |
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