MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many of which point to SEO redirectors and potentially malicious domains, as indicated by the 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' heuristics. The 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics confirm its malicious nature. The primary attack pattern appears to be a phishing or SEO spam campaign, directing users to sites like 'jottigo.ru' and 'cdn.sqhk.co'. No scripts were extracted, but the PDF structure itself facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://jottigo.ru/wix?keyword=always+discreet+boutique+sample PDF link annotation
- https://cdn.sqhk.co/xedogigiloli/jgf7igf/business_strategy_game_quiz_2_quizlet.pdfIn PDF document text
- https://cdn.sqhk.co/lugenaru/jficif9/dofonoribemekagovuset.pdfIn PDF document text
- http://teagreen.space/cydia_free_no_jailbreakorzxr.pdfIn PDF document text
- http://nosinoski.shop/sofewumezagadelipijugs08g.pdfIn PDF document text
- https://cdn.sqhk.co/tibakekavero/jSjeWjh/19558283859.pdfIn PDF document text
- https://cdn.sqhk.co/tokafumotebi/cihiBUQ/40639303837.pdfIn PDF document text
- https://dowanolisedu.weebly.com/uploads/1/3/6/0/136056386/xukivogelokag-rarobo-tibugolegiweres-zeligij.pdfIn PDF document text
- https://melezejezoman.weebly.com/uploads/1/3/5/3/135383670/f2ccbcc0bb158.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/jijari/buverome.pdfIn PDF document text
- https://s3.amazonaws.com/tidigudetefumof/frequently_confused_words_worksheets.pdfIn PDF document text
- https://s3.amazonaws.com/baritexovopa/b_tech_amu_answer_key_2018.pdfIn PDF document text
- https://s3.amazonaws.com/legobegutulo/bms_online_admission_form_mumbai_university.pdfIn PDF document text
- https://s3.amazonaws.com/xidazeze/87605232718.pdfIn PDF document text
- https://s3.amazonaws.com/tenunud/i_want_to_befunky_app.pdfIn PDF document text
- https://43dda2ad-fadc-418c-a2d5-4b96cca2ed60.filesusr.com/ugd/6eca9c_cfa15fc3ba70465bb25f8847033ea9f0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xazarujokemus/91664628135.pdfIn PDF document text
- https://9042e326-c85f-44e6-b9b6-0c206471fdba.filesusr.com/ugd/0d2fda_3119b58ba1ff4899bd03ab1e024e2536.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kisimujuk/android_bottomsheetdialogfragment_rounded_corners.pdfIn PDF document text
- https://b32e410f-f365-4205-840f-53103702c783.filesusr.com/ugd/51ece5_68592c8157c0475a9d13885a24961c77.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bajapovogam/12497522858.pdfIn PDF document text
- https://e5baaea7-7007-41de-9367-4ebf3ed55875.filesusr.com/ugd/8e1900_b4b81be61f124eb68de42b9a98b261a2.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fikuvine/goal_action_plan_template_example.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_off0000d8c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C0 | 5668 bytes |
SHA-256: 6ec37c0b02759f17cc49a23b19b9c2cabfd25e7e396385413114263111980a69 |
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font_01_sfnt_off0000ec06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC06 | 10044 bytes |
SHA-256: df6138e6f717a5297d26e0193c27b6958f0799ff2d743182a975faf0db07263b |
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