MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, with a significant heuristic firing for a "PDF link farm," suggesting an attempt to manipulate search engine results or direct users to malicious sites. The embedded URL `https://leonvi.ru/123?utm_term=common+sense+trick+questions+with+answers` and the link farm URL `https://cdn.sqhk.co/navififoro/LHjizqV/workforce_planning_steps.pdf` are key indicators of this activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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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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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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://leonvi.ru/123?utm_term=common+sense+trick+questions+with+answers
- https://cdn.sqhk.co/navififoro/LHjizqV/workforce_planning_steps.pdf
- https://cdn.sqhk.co/kimefutif/u9zgjN7/zifugiti.pdf
- https://cdn.sqhk.co/nisugewameru/eghjfrC/summoners_war_street_fighter_code.pdf
- https://cdn.sqhk.co/vomuvojovi/jid8ugj/24741764866.pdf
- https://cdn.sqhk.co/solijisivono/P0hbmVf/craftex_mills_fabric.pdf
- https://cdn.sqhk.co/zesozote/edihGjj/games_to_play_with_cats_online.pdf
- https://cdn.sqhk.co/xavexapoxiv/jGshaib/fred_meyer_raleigh_hills_delivery.pdf
- https://cdn.sqhk.co/jumivosokigo/cgh7vNi/kulogojoxowuwokubejumoj.pdf
- https://cdn.sqhk.co/mivoteloxip/dibghzE/toy_smash_cube_blast.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://caa91486-5fcc-43b7-8b2b-5b817ae85bbe.filesusr.com/ugd/26bbcf_99f446856655444b82e99b8a8455d3de.pdf?index=true
- https://0ca3454e-05ac-49fc-8d00-644b1af7be3c.filesusr.com/ugd/8bf3fc_565f078538bb460b8147725df1525bbd.pdf?index=true
- https://uploads.strikinglycdn.com/files/49cc5496-d319-4769-8a95-0f83526df562/4th_grade_math_standards_sc.pdf
- https://s3.amazonaws.com/badodemebo/wewopujalexogaribul.pdf
- https://s3.amazonaws.com/gotenukevepunin/upsee_full_form_in_english.pdf
- https://44407f20-7244-4107-9544-84d8151b6f9a.filesusr.com/ugd/8508de_529959c29f2b4a8d8415fdf108122897.pdf?index=true
- https://uploads.strikinglycdn.com/files/e0a6a268-ba75-42c8-b017-2b230140c370/mewolopobazudefunop.pdf
- https://s3.amazonaws.com/zexozavo/52234884245.pdf
- https://uploads.strikinglycdn.com/files/9048053e-23aa-44b7-bca5-dba3fe1686e0/things_about_police_brutality.pdf
- https://s3.amazonaws.com/jubiferekaka/63757135206.pdf
- https://76ed6b59-b034-43ac-b949-e1c08f76e3cb.filesusr.com/ugd/ee6100_d55acd9e568c4629b9a6f9a72e22fadc.pdf?index=true
- https://s3.amazonaws.com/najubu/el_extranjero_albert_camus.pdf
- https://uploads.strikinglycdn.com/files/83d09530-5792-4176-907b-6ba5cd8a378f/rekiselazabulivu.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_off0000f1c4.bina16d9425404705f5f83d89a28373edee7f5efdce19b9a46e40cb5fd3fb8467a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1C4 | 5196 bytes |
font_01_sfnt_off00010359.bin6715c84f8a7d9534d5975eebfa332e32e8f31802b835e53be9836f6bcf914111 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10359 | 10584 bytes |
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