MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, indicating it is likely a phishing or redirector attempt. It contains a large number of embedded links, many pointing to disposable hosting, designed to create a link farm. One prominent URL, 'https://dafemum.ru/wix?keyword=big+ideas+accelerated+math+answer+key', is flagged as a known malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://dafemum.ru/wix?keyword=big+ideas+accelerated+math+answer+key In PDF document text
- https://cdn.sqhk.co/janezewufaj/hhjhghd/merchant_acquiring_services_definition.pdfIn PDF document text
- https://cdn.sqhk.co/tamaladafa/rhcmjij/cheats_for_gta_5_xbox_one_x.pdfIn PDF document text
- https://cdn.sqhk.co/kewawukufiju/j0gjhj1/capcom_pinball_magic_parts.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://43e3b293-20b6-4b74-9f7d-0eefffb4d2df.filesusr.com/ugd/11595e_5f8cbaf0dd3f4e888a21c4c2096c05ec.pdf?index=trueIn PDF document text
- https://973697ad-ffa4-4f9d-85cd-0c9d1ea039ee.filesusr.com/ugd/5f5755_83a6b583dd7b4a54aedac7b5f80447b6.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nuvukivaxiren/john_deere_44_inch_snowblower_belt_replacement.pdfIn PDF document text
- https://38c8c62e-1823-4c1e-8220-bc61efcc8a1c.filesusr.com/ugd/c24b9b_92728e6cf1374686b4a225806cb40add.pdf?index=trueIn PDF document text
- https://891dfe3a-8969-4df2-b253-5ccc4ebbb7a0.filesusr.com/ugd/e66789_d48c8fc8584f4c0a989d5955b7cbb3c6.pdf?index=trueIn PDF document text
- https://5a1138df-423b-4a5d-a7c7-36223740754e.filesusr.com/ugd/a72fa8_b6aaca3e3ae146968476a4fb0337eb88.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7959e57c-2ef7-4a11-b80f-37e15d8100e0/how_much_is_a_key_programmer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5577fe84-8738-4a3c-a7b7-1d568c82d939/shmoop_owen_meany_chapter_9.pdfIn PDF document text
- https://acfc0e76-311d-46af-9c13-f46c112eb424.filesusr.com/ugd/f90bad_41c59cc327224c8ca4cbcb0d1900126d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7e8b0340-2605-43f1-8c42-59fd7d7142b6/bubozopunulajusom.pdfIn PDF document text
- https://s3.amazonaws.com/lixuzo/carols_of_the_bells_satb.pdfIn PDF document text
- https://s3.amazonaws.com/baposivarabuj/free_printable_brain_teasers_worksheets_for_adults.pdfIn PDF document text
- https://s3.amazonaws.com/woxorojero/77581837187.pdfIn PDF document text
- https://s3.amazonaws.com/nuselufuzo/chsl_2019_form_fee.pdfIn PDF document text
- https://0115c081-d8bc-4983-a705-81db93bf1442.filesusr.com/ugd/990402_40208364f5dc423c903e24b5485b0b74.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000100b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100B6 | 5336 bytes |
SHA-256: 5b4f6227747c85ac4a494f9d0b15c2edf7caac061c00eb51d435a6ee6ad7d30d |
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font_01_sfnt_off000112bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112BC | 10728 bytes |
SHA-256: f6bdd2152489603e6df99bc4962ed09d0bc250f6e0eefd82bad171d9f69f1d9f |
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font_02_sfnt_off0001374a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1374A | 4324 bytes |
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
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