MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many of which point to disposable domains or are used in a link farm configuration. The heuristic PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM indicate a malicious intent to redirect users to potentially harmful websites. The ClamAV detection and ML classifier further support the malicious nature of the file, suggesting it is a phishing or trojan distribution mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
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://leonvi.ru/strik?utm_term=twilight+breaking+dawn+part+2+renesmee+and+bella PDF link annotation
- http://granitmetrospecstroy.ru/free_mcat_study_guide0sbre.pdfIn PDF document text
- https://sukorason.weebly.com/uploads/1/3/4/5/134578332/monegegiwugajiwar.pdfIn PDF document text
- https://zijolafazul.weebly.com/uploads/1/3/0/8/130873795/nunasikob.pdfIn PDF document text
- http://flebolog24.com/french_verb_conjugation_practice_sentencespuro9.pdfIn PDF document text
- http://triple-doska6.club/ccs_university_exam_date_sheet_2019_mav30tf.pdfIn PDF document text
- https://fikadodovawewa.weebly.com/uploads/1/3/4/3/134320255/5bd5e.pdfIn PDF document text
- http://tonerinkstore.com/46395303322co2yy.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/sezewu/audacity_sound_recorder_free.pdfIn PDF document text
- https://s3.amazonaws.com/jidosatikim/how_full_do_you_fill_mini_bundt_pans.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1d4f1ec0-29ba-4d71-a3ec-eaeeba082794/805724130.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/83ce7a44-81ef-499a-824c-0ebadcf3d791/wosisabavavapuwojumux.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1c80c5dc-c4ee-4ad1-a22b-de3954b8f4f9/son_lois_lowry_sparknotes.pdfIn PDF document text
- https://2061f665-9309-41a6-981d-137229ee7e60.filesusr.com/ugd/eb2fe6_8df5b5bfd9994e508ec7523abd91fed4.pdf?index=trueIn PDF document text
- https://8fa10226-37c2-454d-bd65-ced70ecbf0c4.filesusr.com/ugd/c34aa9_1e0c43404fe94cfd9d2f112e3d211d4d.pdf?index=trueIn PDF document text
- https://cc968bdf-8a18-4a65-a72d-893c706ef441.filesusr.com/ugd/bae363_e81e6c3b1be9411e908b06183c0f7f02.pdf?index=trueIn PDF document text
- https://22e365c6-0853-42e1-82f8-83473bf9c0bf.filesusr.com/ugd/217d68_a6ebdfc1ea81449595db5475453c9d43.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jazamerijekufol/job_application_letter_template.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/41766315-696a-4d5a-8d11-700711fcd5c5/en_bonne_forme_7th_edition_answer_key.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e8415aea-28bb-44c6-bc18-3994eee992d4/roald_dahl_the_witches_movie_original.pdfIn PDF document text
- https://s3.amazonaws.com/towakog/how_to_do_a_virtual_run_on_strava.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/837ebb73-8c35-4d45-8b1a-142147472d17/pexoziwurejuduwa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ce659274-5a67-48d8-8911-f2c443b2ca04/70553611584.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b846b460-30fc-4d5f-a846-253fac111843/area_of_parallelogram_worksheet_doc.pdfIn PDF document text
- https://e3055f73-6236-423b-b810-4bc1a15f300f.filesusr.com/ugd/fa12d1_f0984fb4d43c46f1b38cd0dc72b1ff75.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/89fe6c31-47f1-4e8a-8ec5-fa94adef711e/fegesu.pdfIn PDF document text
- https://s3.amazonaws.com/fajixe/hv-800_bluetooth_headset.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_off00012d97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D97 | 5748 bytes |
SHA-256: a29e4053779ff148fe7a8faf73364d298dccb6becc4cd4123853c5ac16f626e8 |
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font_01_sfnt_off00014106.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14106 | 11876 bytes |
SHA-256: b5c9e58311698ab5ccce419e0edb1bffae2f962348f2901a21f643a1b45bb557 |
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