MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an invoice-themed lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://bologen.ru/award?keyword=budget+and+budgetary+control+pdf+download PDF link annotation
- http://socialwave.me/64330477804jl460.pdfIn PDF document text
- http://silkhfig.bid/american_pie_reunion_movie_in_tamilhf488.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402503/normal_603b2c96587c7.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366024/normal_5fe23747b7e3e.pdfIn PDF document text
- http://doucheapp.xyz/nenobonagatemisovodasodijd3ff1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371267/normal_604cc99c55ba9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369768/normal_5fd9b1f13b1db.pdfIn PDF document text
- http://afracheat5.xyz/gcse_maths_algebra_worksheets0farn.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382406/normal_5fdcdde8316c5.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/b8b532d8-d210-4b0a-b2b6-af5b6d38dfba/48293494237.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/90026968-749d-4934-9998-8f9aaad71a7c/53720767579.pdfIn PDF document text
- https://769966b8-4adc-437e-bba8-f198cf6e171b.filesusr.com/ugd/41a0b6_2a87f5c26ce348319008cb9718c21ffa.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/234bf939-bea4-4f57-838e-fb20193bb735/olympus_evolt_e_500_buy.pdfIn PDF document text
- https://09ec9d85-9312-4337-94d0-b84080e05f2e.filesusr.com/ugd/ac0094_8518dba6c2324e4399539136001ef866.pdf?index=trueIn PDF document text
- https://951e66c5-660f-4748-bfcc-a6cc0831133d.filesusr.com/ugd/4967bb_cad4f7f659984bd9b54b7c133cacc1b4.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/farowug/before_answering_your_question_meaning.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5779825a-d342-4bfb-a9d6-fdf746c198ac/experience_and_education.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/db51420b-f6f4-469f-902e-51ce3acb8381/63677375198.pdfIn PDF document text
- https://ba85394b-11ac-4ca4-926b-74ca936c52e1.filesusr.com/ugd/5ccfc8_cfbabe213ba54c6fab11abe42305ba81.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sajatesawodiji/32062687184.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4ead62af-8a1f-4f1f-82ba-9a6bba044d18/little_red_riding_hood_characters_fairy_tale.pdfIn PDF document text
- https://66f9c2bc-82a6-463d-9ccd-9c94d3d8805e.filesusr.com/ugd/b361c6_5d2630b7123c44fd9a1748626faae8ab.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_off0000ffa5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA5 | 5528 bytes |
SHA-256: 68ede407d6466aa33879db06a662d7d9a5285fc263727912e5f067e22b83f1d1 |
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font_01_sfnt_off0001129f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1129F | 10236 bytes |
SHA-256: d857fc6e38dc2afd142e4de511ea14cbd0e95547f833b9416647c88ab418c0f3 |
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