MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it likely exploits vulnerabilities or serves as a phishing lure. The presence of a large number of external links, many pointing to disposable domains, suggests a link farm designed to manipulate search engine results or distribute further malicious content. The file's structure and the detected heuristics strongly indicate a phishing or SEO spam campaign.
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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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://druttle.ru/award?keyword=barron+s+sat+subject+test+biology+pdf PDF link annotation
- https://cdn.sqhk.co/nujoxodove/fihjcOS/umc_pay_period.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4401694/normal_5ffdd634bb136.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478961/normal_6031d2520572b.pdfIn PDF document text
- https://cdn.sqhk.co/zirevazul/Khj2YxB/war_spirit_clan_wars_mod_apk_unlimited_money.pdfIn PDF document text
- https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/0633f107f5022.pdfIn PDF document text
- https://cdn.sqhk.co/wutalididow/1tqiiUw/coffee_gift_card_holder_template.pdfIn PDF document text
- https://cdn.sqhk.co/pefibovip/djaSijc/bahut_pyar_karte_hain_mr_jatt.pdfIn PDF document text
- https://gunajogozezulom.weebly.com/uploads/1/3/5/3/135385825/tofunid.pdfIn PDF document text
- https://pozimifekof.weebly.com/uploads/1/3/4/6/134674510/321912.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445341/normal_6019ba7ce649c.pdfIn PDF document text
- https://cdn.sqhk.co/musamari/she7iaS/wikinosu.pdfIn PDF document text
- https://cdn.sqhk.co/vexedobasof/iagcjg8/4503721110.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376099/normal_602088ea3aaa7.pdfIn PDF document text
- https://zotadapavera.weebly.com/uploads/1/3/4/4/134483721/xifusileba_pukuso_puxoredalaga.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/60507073-f803-4cc5-aa4c-eab80a577ffa/masked_singer_season_3_white_tiger_performance.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ea70b42a-b801-411f-b49c-6c2433e3afc8/kijafewuxigijozepadu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/05bc1746-7308-4566-874d-8b820da57ce4/sandisk_clip_sport_battery_low.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a14ac18f-383e-4f19-8ee7-4f5bd8b3dbd7/how_to_do_uniform_probability_distribution_in_excel.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f0f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0F1 | 5692 bytes |
SHA-256: 68533361e7a95743fa8e89463524cbe467776b8b7375aaf8e2c262d113f8a2d7 |
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font_01_sfnt_off00010468.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10468 | 10392 bytes |
SHA-256: c3e87ae925cc58f8b35053a3fd09eb0160a7e0c938880ef17b991359c96dd989 |
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font_02_sfnt_off0001282c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1282C | 16144 bytes |
SHA-256: 18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b |
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