MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to disposable hosting, indicating a link farm or phishing attempt. The embedded content, though heavily obfuscated, suggests a lure related to 'best book on audible' to drive traffic to these external sites. ClamAV and ML heuristics confirm its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://pelibifir.ru/strik?utm_term=what+is+the+best+book+on+audible PDF link annotation
- https://lodunuvivilaz.weebly.com/uploads/1/3/0/7/130775731/devafaxo-kijemagaw.pdfIn PDF document text
- http://policyhelpcenter.com/annie_script_freefj55a.pdfIn PDF document text
- http://shoop-fk.ru/us_army_rangers_uniformss7go.pdfIn PDF document text
- https://xixebume.weebly.com/uploads/1/3/0/9/130969831/ef9c786d95e4536.pdfIn PDF document text
- https://kadukutinebi.weebly.com/uploads/1/3/4/7/134747046/luwip_gapevujubijek.pdfIn PDF document text
- http://myfirstsite.xyz/orange_movie_audio_songskh1ok.pdfIn PDF document text
- https://tazabavirivagi.weebly.com/uploads/1/3/0/8/130814173/916417.pdfIn PDF document text
- https://vususujisalit.weebly.com/uploads/1/3/4/4/134490496/bibezirote.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/14170b1e-979c-4cd4-8ca4-dfaf0e03c809/jegamowifalisud.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/75a32e3f-34e4-419f-af29-837aaf2b0ca7/best_horror_stories_in_english.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cb8870dd-8c13-4ba9-8429-873076bc69e9/how_do_i_fix_the_code_on_my_kenmore_washer.pdfIn PDF document text
- https://22e365c6-0853-42e1-82f8-83473bf9c0bf.filesusr.com/ugd/217d68_59fb1a7250d5422c89cd6b11e881cefb.pdf?index=trueIn PDF document text
- http://tugujaxozulir.rf.gd/gebibe.pdfIn PDF document text
- https://s3.amazonaws.com/xuzed/laxebusorofomegotafo.pdfIn PDF document text
- https://e8c82854-2a0b-4c0f-82de-bac600ce06e6.filesusr.com/ugd/d017d5_1725759d516f4bcbafd0bb8c9f42dbe5.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xefejevife/console_application_windows_forms.pdfIn PDF document text
- https://51da6a7d-ee05-4a49-87ee-1b74af3aeb07.filesusr.com/ugd/b80405_e9e8901336c2423db808fe33bfa9a334.pdf?index=trueIn PDF document text
- http://dajajubofu.rf.gd/selujuku.pdfIn PDF document text
- https://s3.amazonaws.com/lezopobigeza/90141646860.pdfIn PDF document text
- https://dd39d194-9042-494f-90ab-223c96cf8da5.filesusr.com/ugd/5d3909_79e7d4e5b108407da03974d16ac03d8f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/81c6fde6-6d86-47e7-99e9-bea4d18f7e7e/40166234359.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9a08b779-ab12-4a80-9355-6a95a29ad741/edtpa_task_3_assessment_commentary_examples.pdfIn PDF document text
- https://01c4c9a3-ee74-4db9-a65d-799443b8dbf1.filesusr.com/ugd/a64c8c_fc9f16e3ad904323b6b23dab0ba16d62.pdf?index=trueIn 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_off00011a39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A39 | 5032 bytes |
SHA-256: 17758268743af3a953ada92b6d8b5c4a42c4379e20f941702db990ea47c5c15d |
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font_01_sfnt_off00012b5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B5E | 10824 bytes |
SHA-256: 9a4f32e3be3d92a8c4a8e4f06bd8c29a020d87a447abeabbdb0f41eb6ece59e1 |
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