MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as a link farm and detected as malicious by ClamAV and an ML classifier. It contains a large number of external links, many pointing to disposable hosting, suggesting a phishing or SEO spam campaign. The embedded content, though heavily obfuscated, likely serves to facilitate the redirection to these malicious URLs.
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://jacksth.ru/award?keyword=can+old+diesel+cause+white+smoke PDF link annotation
- https://cdn-cms.f-static.net/uploads/4480753/normal_60161cd5c8ee1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4401518/normal_6026d3476c08a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4391620/normal_60057669be9e1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4482189/normal_5fff230e2fc7f.pdfIn PDF document text
- http://vegofejolafud.mygamesonline.org/72117718525.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://c4e42e93-254c-4ba8-b495-737f84002742.filesusr.com/ugd/ddb60a_795a997cdf684829932b2662e964fc6a.pdf?index=trueIn PDF document text
- https://c580675e-8888-491d-8c80-3106eaac86fb.filesusr.com/ugd/c8a981_9bebc9ba7a244c6cb6af428d0b17fb79.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bofake/how_to_get_above_160_in_gre_quantitative.pdfIn PDF document text
- https://ececae0b-1312-4a4c-959a-117928b3d478.filesusr.com/ugd/e6721e_93073b91474247ac95b5c9ee457bd46b.pdf?index=trueIn PDF document text
- https://f85e9a30-dbb9-40fd-a66d-53bd7daafe07.filesusr.com/ugd/1b9faa_f3cf9637dc904ded8613d5d8113d69f7.pdf?index=trueIn PDF document text
- https://932aa67c-856a-4fda-9fc8-fe3f50d4acc2.filesusr.com/ugd/a25eee_c445b5eb6549475e90445b224da9e1d5.pdf?index=trueIn PDF document text
- https://38aad9b5-7a72-45b8-ac81-9fe73ce82000.filesusr.com/ugd/08338c_064a1acf26d74181b9618c0eab3506c4.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/figidireki/mudamopexenebigupasal.pdfIn PDF document text
- https://eb62986f-0112-409a-9ebe-777412bc5c19.filesusr.com/ugd/26938b_5f3a33d4f451409a93d1a2a67ec4f2a5.pdf?index=trueIn PDF document text
- http://lodumojokexiku.onlinewebshop.net/pozofun.pdfIn PDF document text
- https://d3826037-6016-486c-99e9-dc41bc666644.filesusr.com/ugd/b81754_d23b79d9f1304ffd87ead7b716356ec2.pdf?index=trueIn PDF document text
- https://b32521b7-32ca-447e-9967-d27d0dce683d.filesusr.com/ugd/800b88_f0c05fff65354ada95c70671c1e846ca.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gizonukorad/dell_e7450_price_in_bd.pdfIn PDF document text
- https://67dec473-0a9c-497c-80b1-62a4c84c5046.filesusr.com/ugd/0aab01_c45279f2b93340e5931b7b4d33928ad3.pdf?index=trueIn PDF document text
- https://6632aaff-1fe9-4f1d-acb3-7d444e457837.filesusr.com/ugd/ce4b7c_6b6a07ea8e37461dacf3c8e41d61af1f.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wutisigila/wifetufegigilomitipefu.pdfIn PDF document text
- https://4328a374-8b5c-4134-9cef-e132ca5fc89d.filesusr.com/ugd/6732b1_8cb30c02b81d4fd9a4abc640d0d5f29b.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_off0000e8b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8B6 | 5144 bytes |
SHA-256: fcf3a931ee52bd2f7daeb51809cd7b81f23023f26325e81c9001393c889af090 |
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font_01_sfnt_off0000fa1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA1D | 11116 bytes |
SHA-256: 3386d5c60d6a7fa9b814c15f0a2ff07b7f475e09ba814aba40750af8b7e9715a |
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