MALICIOUS
186
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. 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 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://xajibur.ru/award?keyword=cxc+human+and+social+biology+past+papers+pdf PDF link annotation
- https://cdn.sqhk.co/padasagam/hchaihh/borijubet.pdfIn PDF document text
- https://zepareremuxox.weebly.com/uploads/1/3/4/7/134772384/04d2656f8cb1.pdfIn PDF document text
- https://cdn.sqhk.co/xitilesuxiw/5tjh7hj/coin_plinko_legit.pdfIn PDF document text
- https://cdn.sqhk.co/bamikalagov/cVhfib5/4018131821.pdfIn PDF document text
- https://sowosevutab.weebly.com/uploads/1/3/4/3/134311467/gikusutalazigut.pdfIn PDF document text
- https://dariwatipizodaf.weebly.com/uploads/1/3/5/3/135323996/9327295.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://9f503c4c-bf14-4dcb-9a7a-68e0e5bb3568.filesusr.com/ugd/8ac1ab_f37ae0b348c541bda9b40fb44c8e071f.pdf?index=trueIn PDF document text
- http://vowaderisosalel.epizy.com/bovine_spongiform_encephalopathy_bse.pdfIn PDF document text
- https://9b704b87-3668-414c-a24e-b30400fe0e33.filesusr.com/ugd/51c472_ad30a031a0c5483897896932703cd500.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wibedubosateg/63271096178.pdfIn PDF document text
- https://0ac950e2-707a-4e47-8bf4-daface0ea9db.filesusr.com/ugd/356f11_d0c28108740342da869ad72ed9dee867.pdf?index=trueIn PDF document text
- http://safuzidavoje.rf.gd/87515642056.pdfIn PDF document text
- https://9a4203bb-6ff2-4ef1-9c63-3f113f84a884.filesusr.com/ugd/ea9bdf_adf16dd4f5a5472080da640a53e0d8e6.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wutogugej/99043016059.pdfIn PDF document text
- https://9abff256-b119-4e75-a612-dfc075f5428e.filesusr.com/ugd/c73517_8464db1d45894612a20ace481a228a4f.pdf?index=trueIn PDF document text
- https://8650d040-a33d-467d-a608-6706f181f11b.filesusr.com/ugd/61b8bf_5c96f3172cc645a7beab6ffc5956872e.pdf?index=trueIn PDF document text
- https://22449060-8e30-4723-8828-967625cce342.filesusr.com/ugd/eddc50_e5d5d67dc47644df971c882b0e43f589.pdf?index=trueIn PDF document text
- https://6c8027e1-9878-41b3-a9ef-32ba2b6bcd02.filesusr.com/ugd/185811_daf39caa37664281b7e37b4b82cc4d03.pdf?index=trueIn PDF document text
- https://551f0ad2-75d1-4009-b90b-2f3e3e20230b.filesusr.com/ugd/c2bf0a_74677a3389f749e88a0073cee210ae47.pdf?index=trueIn PDF document text
- http://zufelagek.rf.gd/lineridozexota.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e63d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE63D | 1872 bytes |
SHA-256: 82f30745d1fb873379318f2d42ec1cec373ed0047a72e384f79ae3fc36ffe934 |
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font_01_sfnt_off0000ef31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF31 | 5784 bytes |
SHA-256: ddfb0c47412873843a00c7be98490de99b52365bf19214f36bea8e1d84e9c997 |
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font_02_sfnt_off000102bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102BC | 10988 bytes |
SHA-256: 8dddb47c564c547751c7d309a3806360d5145732c6520f9eaf39392700bc87e8 |
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