MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains numerous links to potentially malicious websites, including a known redirector at https://cctraff.ru/strik. The document body, though partially corrupted, includes the same URL and other links that are hosted on disposable domains, suggesting a phishing or malware distribution attempt. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://cctraff.ru/strik?keyword=math+reasoning+questions+and+answers+in+hindi+pdf In PDF document text
- http://files.apple-tutoring.com/uploads/1/3/1/0/131071209/fejemirokapo.pdfIn PDF document text
- http://dodelog.theoutsiderseries.com/uploads/1/3/0/7/130776478/letupewirewobe.pdfIn PDF document text
- http://bifawir.westhebronunitedpresbyterianchurch.com/uploads/1/3/1/3/131398560/f947b.pdfIn PDF document text
- http://files.petalsandpossibilities.com/uploads/1/3/1/4/131407369/44104e264bfe.pdfIn PDF document text
- https://site-1036936.mozfiles.com/files/1036936/89416177426.pdfIn PDF document text
- https://site-1036879.mozfiles.com/files/1036879/41021540328.pdfIn PDF document text
- https://site-1036661.mozfiles.com/files/1036661/gimodowepudimimuxe.pdfIn PDF document text
- https://site-1036743.mozfiles.com/files/1036743/betufuvupidakefozove.pdfIn PDF document text
- https://site-1038796.mozfiles.com/files/1038796/xalefimigegifetoruda.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9186/1410/files/5947333810.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8333/3786/files/54019966800.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0457/8384/2982/files/latest_best_android_phones_under_7000.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6832/4005/files/valubej.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d4e5c6fa-8209-47c5-a1c7-98b9a7981c6d/nulimimosaroleses.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8b3b741e-ce31-4619-acf2-6dc2cdfad03f/mamamajijepufekenugiso.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d73daedc-4bd2-4fde-8882-b82ae29caa78/43014271914.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8d066703-90b8-44ea-84ae-950483850162/14060663128.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a4dfb37a-90cd-4b3b-9524-4e23820f8b3b/kenamu.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000734f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x734F | 2868 bytes |
SHA-256: cfdf59a0cc40cda50b922138463ecaa12fc447e9f282d0131606ef10d6057929 |
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font_01_sfnt_off00007d82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D82 | 5496 bytes |
SHA-256: 4a0ecc966a6858b1a2c057f2cc534390ef0c02f16cd996a8210731cdb71e4793 |
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font_02_sfnt_off00009042.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9042 | 16028 bytes |
SHA-256: 3adbb53433604638fe1e30b92dbc62baaa3de319c9cd7b656539123cb60ee923 |
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font_03_sfnt_off0000c1be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1BE | 11800 bytes |
SHA-256: 0a755f14922c35bf5835f63a9eee03741576f173f62ae457a75ef0943444b2db |
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