MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ML classifiers and ClamAV, with critical heuristics indicating a PDF link farm. The document contains numerous external URIs, with one prominent example being a link to 'shapes of covalent molecules worksheet' which likely serves as a lure. The presence of a large number of external links suggests an attempt to direct users to potentially malicious or SEO-manipulated content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://vilenefex.ru/123?utm_term=shapes+of+covalent+molecules+worksheet
- http://ributufukepun.66ghz.com/ac_joint_injury_exercises.pdf
- http://circleshtang.xyz/sundari_kannal_oru_sethi_song_downloadigcxm.pdf
- https://wipolupenigikof.weebly.com/uploads/1/3/2/7/132712614/a158f8dcd5646.pdf
- http://salleapp.xyz/7576788696g2f46.pdf
- http://bavewemelemare.iblogger.org/dukedutuzojomin.pdf
- http://tumuduwaju.mypressonline.com/97497389768.pdf
- http://fesotisifofil.mygamesonline.org/pdf_split_and_merge_basic_download_free.pdf
- https://rewegabelera.weebly.com/uploads/1/3/5/3/135390500/fbff4.pdf
- http://cherrypimp.online/how_to_install_verizon_fios_wifi_extenderm77kv.pdf
- http://gosoxegekiri.mywebcommunity.org/the_economist_february_23rd_2020.pdf
- http://kipokefurur.mygamesonline.org/applied_research_vs_basic_research.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- http://xenukelo.rf.gd/how_to_use_training_shock_collar.pdf
- https://s3.amazonaws.com/falejogajir/philips_norelco_beard_trimmer_series_5000_bt5511_49_review.pdf
- https://s3.amazonaws.com/pasawexawinogad/piano_sheet_music_leonard_cohen_hallelujah.pdf
- http://tewenusewokux.rf.gd/algorithme_les_tableaux_cours.pdf
- https://s3.amazonaws.com/fedufiporara/ripanawemepatogi.pdf
- http://milatosokalazer.epizy.com/rotovizugepabidaxenose.pdf
- https://s3.amazonaws.com/kovozenamofox/tatevujajadame.pdf
- https://s3.amazonaws.com/dukajevo/bsc_bed_exam_form_2019_rajasthan.pdf
- https://s3.amazonaws.com/tesotiwapax/22897860539.pdf
- http://nukilaba.myartsonline.com/60422885979.pdf
- https://s3.amazonaws.com/vipuxafol/dizuverokijijegabukebepex.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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dc93.bina474b5d52b0c00663055a1ca231c7bc9d653b7239e932af76447e6eeae1606e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC93 | 5408 bytes |
font_01_sfnt_off0000eedf.bina3bb7bff19f726acacac3f4a3b94a260defc97cf058236380c0c1a062fd3e10a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEDF | 10840 bytes |
font_02_sfnt_off000113f0.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113F0 | 4324 bytes |
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