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 0.9995
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://chcial.ru/pbw?utm_term=idioms+and+phrases+exercises+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4369149/normal_604ced9178f37.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446286/normal_5fcf203c23ee3.pdfIn PDF document text
- https://diminulagiv.weebly.com/uploads/1/3/4/4/134489960/kavanos-nojepemeriw.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4401712/normal_60b41a9a98f8d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414353/normal_606372e1d80f0.pdfIn PDF document text
- https://zefinefan.weebly.com/uploads/1/3/2/8/132816158/3401801.pdfIn PDF document text
- https://godewofevi.weebly.com/uploads/1/3/2/8/132814364/dujunuke.pdfIn PDF document text
- https://ruvezidarumova.weebly.com/uploads/1/3/1/3/131380493/1508594.pdfIn PDF document text
- https://vadugoza.weebly.com/uploads/1/3/4/5/134599956/zutewemojupe_kitagajuvasoson.pdfIn PDF document text
- https://tozowibalap.weebly.com/uploads/1/3/4/3/134383498/posidu.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4420438/normal_600052c3be283.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473047/normal_606b20423be52.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4497688/normal_5fe922a4bc7a4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369516/normal_601424e55e25e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501980/normal_604a933a0ce1b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4449009/normal_5fe00a4b93289.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4372719/normal_60afeb3e9948c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491965/normal_6068f5a1ba742.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/27ea2034-45fd-4a27-8429-d20eb23f984a/company_profile_sample_word_file.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8ca8b09c-c7b6-4197-ac01-c22b404c638a/kazabamido.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/687cf2ff-f50e-4db5-b273-52cc04c01801/find_sound_driver_for_my_pc.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89c83723-e78a-4f81-b888-042e2e65cd4f/fun_football_training_drills_for_adults.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_off000162d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x162D9 | 5368 bytes |
SHA-256: fa7756e2c5b25a0cf3231f5a10c3ee95a8ffbf279a69d5f1bb4119d7355249b5 |
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font_01_sfnt_off000174f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x174F6 | 10304 bytes |
SHA-256: 472ab1d86bfe666d2ae1e4e5f9d65062e802a93cf4724de68097a2841a58b10f |
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font_02_sfnt_off0001987c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1987C | 16060 bytes |
SHA-256: a1e2968ca8c7638dd4bef022e186f3fea2b098bc52bbc7b81535a6634822059c |
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