MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous external URLs that point to other PDF documents, likely to manipulate search engine results or host further malicious content. The primary URL observed is https://jottigo.ru/123?utm_term=simile+or+metaphor+worksheet+pdf, which is part of a disposable link farm strategy.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://jottigo.ru/123?utm_term=simile+or+metaphor+worksheet+pdf PDF link annotation
- https://cdn.sqhk.co/zarejesorufo/U50DjaP/agnisakshi_serial_full_audio_song.pdfIn PDF document text
- http://tafuxasomup.getenjoyment.net/7267769810.pdfIn PDF document text
- https://cdn.sqhk.co/turaxulefa/fifRgjc/88315139177.pdfIn PDF document text
- https://cdn.sqhk.co/bomemenun/ShfLYDt/41273681073.pdfIn PDF document text
- https://cdn.sqhk.co/davunosedepa/hj9hcne/survival_craft_2_minecraft_texture_pack.pdfIn PDF document text
- https://cdn.sqhk.co/nivavepe/aMgc86a/55567150043.pdfIn PDF document text
- https://cdn.sqhk.co/kepebeso/hde7U4D/bagiforenasovuxazajerizo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://1d942ef5-affb-47d8-8f99-70a3d187b733.filesusr.com/ugd/3283b0_2233bf707b3549d9b6c9ad9ae25d949a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/dexodekelaseki/gemorawipiboge.pdfIn PDF document text
- https://e510c2d5-567e-4a96-89ff-abc18316baf7.filesusr.com/ugd/8a9bcc_82353779cb124f5ca3e5cf488559bce6.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f90d685b-1ae5-45dd-80b3-24f26c5fcd0d/administracion_de_medicamentos_por_via_intravenosa_directa.pdfIn PDF document text
- https://s3.amazonaws.com/zakunafu/pulozesuxes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/91e3eb7f-3338-4664-aff8-f25307dd1e51/60405984105.pdfIn PDF document text
- https://s3.amazonaws.com/lanaladu/xojegalegot.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b1a77710-fac5-405c-82ca-3a5eb520c478/pretty_little_liars_episodes_season_4.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/335d9aca-57ca-4dc2-a8ab-6ae765a49ee2/brandy_melville_discount_code.pdfIn PDF document text
- http://metiguwuwezaza.atwebpages.com/study_of_boilers_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/00c74240-9898-48b2-ac77-efe7d4c74adf/laporin.pdfIn PDF document text
- https://4ef57e19-9a2e-4e6f-a444-f6b59f982a39.filesusr.com/ugd/4c1554_24df2da7e16d40dfbf8bf94d90b1fa4f.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tumuzu/rowdy_baby_video_song_3gp_free.pdfIn PDF document text
- http://sofibimibojas.myartsonline.com/varudulowejava.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_off0000e1b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1B3 | 5540 bytes |
SHA-256: 44d26b22af0a340685c8e5bcbc057de35ad64e7a45230dd4dde72a42978ae6dd |
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font_01_sfnt_off0000f46a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF46A | 10988 bytes |
SHA-256: 751f752f162df4da88b8183629f94cb1974ab009205cfa5f2d1b7b0306c281e6 |
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