MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains a large number of external links, many of which point to PDF files hosted on suspicious domains, suggesting a link farm or redirection scheme. The document body, though heavily obfuscated, appears to be related to search engine optimization for academic papers, likely a lure to encourage clicks on the embedded malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9782
Heuristics 5
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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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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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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://lozipotod.ru/award?keyword=higher+engineering+mathematics+by+bv+ramana+pdf
- https://cdn.sqhk.co/kuwusemob/D8ifij3/27208998277.pdf
- https://cdn.sqhk.co/telapunojawu/gCigWih/35207306447.pdf
- https://cdn.sqhk.co/rujiwujik/dJ8Eifw/61229187542.pdf
- https://cdn-cms.f-static.net/uploads/4403565/normal_5fe8af68caa50.pdf
- https://cdn.sqhk.co/ketegobuto/lgBfXbs/91868624761.pdf
- https://cdn.sqhk.co/tezesafura/gfinDwN/vidufigorijovifinanasedo.pdf
- https://static.s123-cdn-static.com/uploads/4426072/normal_5fca4749aac43.pdf
- https://cdn.sqhk.co/kesavaki/jcTJjb8/74673188903.pdf
- https://cdn.sqhk.co/pojimisuso/exgiM2o/relilisazusuvasusew.pdf
- https://cdn-cms.f-static.net/uploads/4365547/normal_6009c369baf67.pdf
- https://cdn.sqhk.co/didowolikex/jjbgc6W/descent_road_to_legend_side_quests.pdf
- https://static.s123-cdn-static.com/uploads/4476285/normal_5fc85e48e40b0.pdf
- https://cdn.sqhk.co/zimidenex/jgIzij1/53457916112.pdf
- https://cdn.sqhk.co/fomolunuvufa/ifrBHge/snapchat_login_help.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102Hussain
- http://smc.org.inhttp://smc.org.in
- http://fedorahosted.org/lohit
- http://www.opentle.org
- https://uploads.strikinglycdn.com/files/7e2da56d-5c86-47e9-898c-bcd3dd840674/kenworth_t270_owners_manual.pdf
- https://s3.amazonaws.com/jojitagifuva/ambient_sound_app.pdf
- https://uploads.strikinglycdn.com/files/3665e6b9-b627-4a00-8dc6-61ab20f73c98/vurupovulopaxasidefoxanuf.pdf
- https://s3.amazonaws.com/ditiruz/what_is_the_difference_between_plan_elevation_and_section.pdf
- https://0a497e50-07dd-462d-832d-d8678f741a8e.filesusr.com/ugd/5f857b_ba1796b292df4d149a1fb8a7075a1bea.pdf?index=true
- https://s3.amazonaws.com/salosibejodod/1706853444.pdf
- https://badbb018-ab4e-499b-b788-960949b82e3d.filesusr.com/ugd/4f4c56_20f4fc759bf84df1a18440d8e618e7eb.pdf?index=true
- https://s3.amazonaws.com/vifusupegiza/tajusiluwagudekerimerov.pdf
- https://s3.amazonaws.com/runuzitexokol/bilindar_kannada_film_songs.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
- http://scripts.sil.org/OFL
- https://gitlab.com/smc/meera/blob/master/COPYING
- http://www.gnu.org/licenses/gpl.html
Extracted artifacts 8
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_009_off00018aba.binde67dac77e71aeca5b22e3f14b3a693231f93498e2a41f6a297bab5d1def4fe8 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x18ABA | 17408 bytes |
font_00_sfnt_off0001014d.bin7ca3f79237f0268976f0874141738179710a8d6d580de97ebc05b15337efb780 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1014D | 4032 bytes |
font_01_sfnt_off00010fc7.bin3ab4a8244da863dacc050bb31fbb572ccd30222d7fb5caa37a2f66ca1b9caa3a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FC7 | 5800 bytes |
font_02_sfnt_off00012358.bine23308bb06bff427f4fe2d795198e016b2e9db23d45fd702446b15ef1a1323d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12358 | 3048 bytes |
font_03_sfnt_off00012f63.bin1b559382ed6243dbaf0ffe4b5bcf35fbbbfd695520fd9f854e37b3fe7f47daf2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F63 | 3664 bytes |
font_04_sfnt_off00013e19.bin0b38f6fd5e0b54bfa22d5adee1cfe00629fe134100fc7cfc1ad14a2ab7974207 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E19 | 6148 bytes |
font_05_sfnt_off00014df1.bindfc6b912628a0cfd78a854c4552d4b63834b5266094acd967c7753fbc39207c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14DF1 | 2484 bytes |
font_06_sfnt_off000158e4.bin23dbfc11174231af61c3d835c88bcc7c2ccea6e3d7c47b70fe9602633547f48e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x158E4 | 17500 bytes |
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