Malicious PDF — malware analysis report

Static analysis result for SHA-256 14abe2836f88dee7…

MALICIOUS

PDF

80.5 KB Created: 2021-04-03 00:53:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 7e999c1829b3818b5630dab6ceffe371 SHA-1: 90ec2c7aab7f7db28fdf7e6885b991ec78343558 SHA-256: 14abe2836f88dee773b09ca3d9db37955258661f677553ff5d5e0fd124b9aae6
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9990

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://jottigo.ru/strik?utm_term=is+disney+plus+on+samsung+blu+ray+player PDF link annotation
    • http://femusawar.iblogger.org/vanomegu.pdfIn PDF document text
    • https://cdn.sqhk.co/duputokodoz/sIwighb/super_sonic_the_hedgehog_speed.pdfIn PDF document text
    • http://lg-copyrightforms.com/decision_tree_classifier_sklearnsn494.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • https://cdn.sqhk.co/kusewupudin/9gfigjc/27862230619.pdfIn PDF document text
    • https://cdn.sqhk.co/pelonulu/O8hchgL/lefituperogurutirixa.pdfIn PDF document text
    • http://trudogoliya.online/atwood_rv_furnace_not_working0kxc7.pdfIn PDF document text
    • https://cdn.sqhk.co/pozigafo/iAsifx5/85958611292.pdfIn PDF document text
    • http://arfeshome.com/novos_poemas_carlos_drummond_de_andrade78mu9.pdfIn PDF document text
    • http://salopkisa.website/7556336676507lnp.pdfIn PDF document text
    • https://cdn.sqhk.co/komagiju/eyDGj1r/corcraft_stock_market.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pakakufi.epizy.com/70601885502.pdfIn PDF document text
    • https://c0cead0d-5248-483d-940e-95cc3acd9bde.filesusr.com/ugd/20d83a_9ee1b5c234624b68916bb126dc6e9b91.pdf?index=trueIn PDF document text
    • http://zopibekaboxopa.epizy.com/the_book_alan_watts_goodreads.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/70632571822.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/zizakokutogijasozezalise.pdfIn PDF document text
    • http://mokodipixa.epizy.com/23811111782.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/how_to_get_keys_for_last_wish_raid.pdfIn PDF document text
    • http://fetafuxukijixex.rf.gd/95460548252.pdfIn PDF document text
    • http://dipijiz.epizy.com/how_much_do_hedge_fund_managers_make_in_india.pdfIn PDF document text
    • http://risuveliki.rf.gd/design_patterns_java_interview_questions.pdfIn PDF document text
    • http://jajepurexax.rf.gd/bosch_automotive_books.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/93224132911.pdfIn PDF document text
    • https://8c285b57-3156-47ce-881b-df665acc117b.filesusr.com/ugd/8d46c2_71929531660e4372b59e2b57734c630c.pdf?index=trueIn PDF document text
    • https://91c7bc9f-df77-4dbd-ae51-8bcf521f3e61.filesusr.com/ugd/1df9ea_dd267f334458491c9388881f9c911de7.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.

FilenameKindSourceSize
font_00_sfnt_off0000fd27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD27 5460 bytes
SHA-256: 7981f8397f146ce2f4d22d31b72922b5e00a8b76405fdbdb724668c05c857de5
font_01_sfnt_off00010f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F9E 10604 bytes
SHA-256: 7100f49a7a0eecf849b78cf98f0ec186fdd173cb60bf4626bc982761c63aa3b2

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