MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or malware distribution attempt. It contains a large number of external links, many pointing to SEO-optimized PDF files, suggesting a link farm or redirector strategy. The primary redirector URL is https://golowaki.ru/strik?utm_term=lowercase+cursive+writing+worksheets+pdf+free+download, which is used to lure users with the promise of free downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://golowaki.ru/strik?utm_term=lowercase+cursive+writing+worksheets+pdf+free+download PDF link annotation
- https://wipedevibenisi.weebly.com/uploads/1/3/5/3/135315865/6831959.pdfIn PDF document text
- https://bojebunu.weebly.com/uploads/1/3/0/7/130775379/koteri_xefafumefonagis_gekavur_rokubozojosum.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4465935/normal_5fcf0c1a9197f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408703/normal_5fdfd0e9541a1.pdfIn PDF document text
- https://vibitidit.weebly.com/uploads/1/3/4/7/134712982/1252987.pdfIn PDF document text
- https://rasofenetiko.weebly.com/uploads/1/3/4/8/134862321/2609877.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368991/normal_6020feaddd177.pdfIn PDF document text
- https://kesizizuju.weebly.com/uploads/1/3/4/3/134384541/jifazowi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383579/normal_5ff19a1bd3764.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385030/normal_6068d490ba8e7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377410/normal_604c9f665a54a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4472198/normal_5fecd491b58c4.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/jafujasiwetid/yamaha_moto_4_350_specs.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/587c757d-5e77-486b-a990-c33ffaf54844/how_to_light_the_pilot_on_a_wall_heater.pdfIn PDF document text
- https://s3.amazonaws.com/risalenefazozo/99531593945.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fa8aa801-6ff3-4b2d-85a3-3c8ee3a08ed2/17442423875.pdfIn PDF document text
- https://s3.amazonaws.com/luborinizu/jovarebavekadimomi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1332d377-58e6-4b73-b428-d86f4f6b7ac6/75677070336.pdfIn PDF document text
- https://s3.amazonaws.com/bokofapig/40195745101.pdfIn PDF document text
- https://s3.amazonaws.com/juzowilipi/89040722224.pdfIn PDF document text
- https://s3.amazonaws.com/bisegilupuf/79907385047.pdfIn PDF document text
- https://s3.amazonaws.com/likerajatob/plateforme_bla_bla_car.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7b0a53c9-baf2-48df-bad1-a930ae06bfa3/sony_rx100_iii_price_australia.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
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e37f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE37F | 5456 bytes |
SHA-256: 64cffc185e981f6f63e4b8f85d85e8cc2d220ec8be87fc99b7eaab5f7f3e2c2a |
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font_01_sfnt_off0000f616.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF616 | 7972 bytes |
SHA-256: c5f1d16a4d3962e12dd53f1e0d64d2b17667b672b0e02730f4face849f39e6e9 |
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font_02_sfnt_off00010bc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BC2 | 10232 bytes |
SHA-256: 4953c2497afa3775de9ca6f200067f185878e3e6bdf5d0390a2c20520964fddb |
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font_03_sfnt_off00012ebb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EBB | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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