MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by both ClamAV and an ML classifier. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing operation. One of the extracted URLs, 'https://coretry.ru/pbw?utm_term=abituriyent+jurnali+4+2020+pdf', is likely the intended destination for users, disguised as an academic journal. No scripts were extracted, but the presence of numerous external links and the phishing/malware detection strongly indicate malicious intent.
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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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://coretry.ru/pbw?utm_term=abituriyent+jurnali+4+2020+pdf PDF link annotation
- https://fojubilaziri.weebly.com/uploads/1/3/7/4/137498845/fc1671eb8bdcc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426425/normal_6011220f02c02.pdfIn PDF document text
- https://bejakujenexal.weebly.com/uploads/1/3/4/8/134890937/9120393.pdfIn PDF document text
- https://sizosadul.weebly.com/uploads/1/3/3/9/133986432/95b82.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417530/normal_5fe02c83da5f6.pdfIn PDF document text
- https://wadomojare.weebly.com/uploads/1/3/4/4/134472746/3217600.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420431/normal_60213ffae1d32.pdfIn PDF document text
- https://jatilupek.weebly.com/uploads/1/3/4/4/134491857/loretunatidix.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/67af33fd-b64b-41a9-b44b-6a30469f5fa7/how_much_is_my_beanie_baby_worth_2021.pdfIn PDF document text
- http://fafevupu.pbworks.com/f/wwe_2k16_for_android.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9399a62e-28a4-4d9a-89bb-2a5cc0a62c70/gogetimedebinu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/65b6b030-b39b-47d4-9a34-991f7772fb3c/74592938123.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6ddf74da-7514-4863-a0f6-a1f4e550e4c6/calligraphy_practice_sheets_printable_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/94f73b5e-e525-4dbf-ad65-41aa9ff738da/wukulevatutugases.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3081a471-0792-4e55-a742-9839d2fe5188/pubasojifotukexaf.pdfIn PDF document text
- http://dumogaluz.pbworks.com/w/file/fetch/144575163/86132354156.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1b229cec-3d08-43bf-83f2-52e4b2b2e226/how_to_pair_phone_to_delphi_radio.pdfIn PDF document text
- http://jagimikat.pbworks.com/f/90720200088.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fbd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBD3 | 5528 bytes |
SHA-256: be2e16d4831b2997a75e9442fd1f45f67cec5bf0a29de0fb03f3ad9acb1db19b |
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font_01_sfnt_off00010eb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EB8 | 2320 bytes |
SHA-256: 7bb91423d63eb6bd7c2657278979848d60b7d38679106ec23dbd755ba6ab3d32 |
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font_02_sfnt_off00011908.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11908 | 16400 bytes |
SHA-256: ef4b628398cc7145c5147c9e6276401e5e83dab5a8ee0cc475cf7f34eb19db86 |
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font_03_sfnt_off00014a3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A3E | 16208 bytes |
SHA-256: 23fb053ee487b225b4161442c5fb1c6616ae1957d1a3293f1c91e333b45a9988 |
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