MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains numerous external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users to potentially malicious content. The primary malicious URL identified is https://midufefew.ru/award?keyword=cambridge+synonyms+and+antonyms+dictionary+pdf, which is likely used for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9655
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://midufefew.ru/award?keyword=cambridge+synonyms+and+antonyms+dictionary+pdf PDF link annotation
- http://kedugobepuged.mywebcommunity.org/basic_english_lesson_plan.pdfIn PDF document text
- http://saniwigudovo.scienceontheweb.net/active_and_passive_voice_present_exercises.pdfIn PDF document text
- http://pomuropujuj.22web.org/43317251926.pdfIn PDF document text
- http://kazimibi.getenjoyment.net/tabarajovaxapojino.pdfIn PDF document text
- http://datovufes.scienceontheweb.net/fazez.pdfIn PDF document text
- http://boraguw.medianewsonline.com/rikopilifuvekowubagora.pdfIn PDF document text
- http://sikawejenidobux.iblogger.org/john_locke_an_essay_concerning_human_understanding_1690.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://www.opentle.orgIn PDF document text
- https://081e7fb2-604d-424b-9b75-a58d54a71a44.filesusr.com/ugd/abd6ea_d055ca7baeaa4a9f800c6c5c676ee515.pdf?index=trueIn PDF document text
- https://ad0d0dbb-669b-46a9-85df-79487014a0f3.filesusr.com/ugd/00d95d_32f81e7509cf4f16b6754fdb81f408f1.pdf?index=trueIn PDF document text
- https://6b52f5a6-db44-4d3e-8337-ab33c729cb13.filesusr.com/ugd/f4de5e_4abc712e1e0648f38d8a340696bca4df.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e1523534-3375-4c24-a074-701ef1b53fce/86746264811.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/011d5474-39b2-419f-af46-f2aad5cb33ef/database_management_system_dbms_is_important_to_modern_organizations_because.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4e3db14a-0e57-4612-8e54-6fd376ec1566/what_is_the_reversed_brayton_cycle_describe.pdfIn PDF document text
- https://ac3db616-04cb-40f1-8357-c67041f5e20c.filesusr.com/ugd/eda9ba_7b1caa504a874889b87f927fb11145d5.pdf?index=trueIn PDF document text
- https://9e730ba1-499c-413e-9a09-8a81f8121270.filesusr.com/ugd/0a0016_060d2f1fe1d34028815546da73c9d5bf.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/acb01035-a8dd-45d5-abdf-5a5c572ce257/sony_dslr_a350_camera_price.pdfIn PDF document text
- http://pujumek.myartsonline.com/76665996018.pdfIn PDF document text
- https://1fd079ea-3156-4ae8-a0b4-6153e0b529c5.filesusr.com/ugd/e66bf7_441bfe69f07947599cbdd15da0636533.pdf?index=trueIn PDF document text
- https://f62823ea-e863-4eb7-bd7c-e3bac0139ff1.filesusr.com/ugd/8c639a_c715ed50d3674e15baafeffdb5002b5c.pdf?index=trueIn PDF document text
- https://b7f5b04e-b247-49a4-9dc0-39f0c843ec09.filesusr.com/ugd/b56f86_b153e3fbf7b24f5e971c1abe11780c16.pdf?index=trueIn PDF document text
- https://933afb0c-60ca-4ff4-ba38-e7c804ca925d.filesusr.com/ugd/941881_81d5b13ffe6248f9b6a7c0df5636f5c9.pdf?index=trueIn PDF document text
- http://muvamubas.atwebpages.com/akeelah_and_the_bee_book.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 9
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_010_off00017559.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x17559 | 18176 bytes |
SHA-256: 9a53eb0f5d899206140142024e1329928d04523b9b037af6ea44b3d64dff0b7c |
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font_00_sfnt_off0000e5bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5BC | 5684 bytes |
SHA-256: d9df6945b54372b4ce1b038b385752c5e534dd56f39eb70cfae60a2504a527db |
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font_01_sfnt_off0000f998.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF998 | 5592 bytes |
SHA-256: f7f8b5d19a4c4314dd11ef3d5ad4f92e6a2125304a419dd3410bd5bc3c7303e2 |
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font_02_sfnt_off00010c82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C82 | 2656 bytes |
SHA-256: dbaab8dcf32bfe64cb008f34eb54f5316f62236e8dffe3de49b44225404383a5 |
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font_03_sfnt_off00011786.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11786 | 2328 bytes |
SHA-256: 864cbe2c6973b44d2b71e19ffbffb2328dcb3759b07ceb43c11d5a372fc4956d |
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font_04_sfnt_off0001223c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1223C | 2108 bytes |
SHA-256: d117309382da938f7dffedc42f90dd4217b4d540d75629b80669d975ecbc171e |
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font_05_sfnt_off00012c07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C07 | 6640 bytes |
SHA-256: 538512be6c526ea957b587fa229624d829dca4873b622d187784a60d2c877fcd |
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font_06_sfnt_off00013da5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DA5 | 23564 bytes |
SHA-256: 9a640a56a0fc9dbe76a2d82e7a55d6df5cd83d15b8c49a1e2a51034ec32de5b4 |
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font_08_sfnt_off00019228.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19228 | 3276 bytes |
SHA-256: c12c670e310cd2dd0f4b1ea6ea0d01ef35e1284caa1cfc967b978b02bd897c09 |
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