Malicious PDF — malware analysis report

Static analysis result for SHA-256 90039788b5c56bf2…

MALICIOUS

PDF

72.8 KB Created: 2021-02-22 18:44:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1c1d4619870354a44f969951e7b4133e SHA-1: 3b95def3b501bc6ffe24d605a34f036fe9887b33 SHA-256: 90039788b5c56bf2b0e7f974dff473e949ee22969999c5978738fe4240dc576d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/wix?keyword=diplomatic+revolution+ap+euro PDF link annotation
    • http://lnstagramverifiedsbadgeforms.com/amharic_bible_commentary_free_downloadezvxb.pdfIn PDF document text
    • http://segway-wheelchair.ru/fumonolozus8phle.pdfIn PDF document text
    • https://cdn.sqhk.co/setuboluraje/ihgjbge/neighbors_of_mod_apk_netflix.pdfIn PDF document text
    • http://mazanatur.space/collage_maker_free_online_no_registrationt9b8j.pdfIn PDF document text
    • http://optarfes.com/download_insaniquarium_deluxe_3.7.2_mod_apk1k9zk.pdfIn PDF document text
    • https://tiwofimobodes.weebly.com/uploads/1/3/4/0/134040820/wedixek.pdfIn PDF document text
    • https://jomupalekiloja.weebly.com/uploads/1/3/4/3/134310494/3602524.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451929/normal_6004b714d8bdb.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/Ohjhizl/bring_shopping_list_apple_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/muvenetu/fHJ1XNL/96791980133.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500679/normal_60168c1aa6add.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/eTRIQIC/spacecraft_rts_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/judebivon/FXmLifD/pawemazag.pdfIn PDF document text
    • https://limorevoxa.weebly.com/uploads/1/3/4/6/134611026/beterejefaru.pdfIn PDF document text
    • http://fitit.space/12053717351gxzrv.pdfIn PDF document text
    • http://greatmasters.biz/ziwumejalegilev6vm5.pdfIn PDF document text
    • https://lepepapiminokuj.weebly.com/uploads/1/3/4/4/134493398/354089.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/mobile_legends_mod_apk_di_apptoko.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/guxibelemifunikabajaf.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/japanese_verb_conjugation_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/fpc_certification_study_guide.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE149 4960 bytes
SHA-256: 411a28387eeeb82e62e945a561e9479b7ee1e5dd9e139c6102e63bcbb3590b2e
font_01_sfnt_off0000f219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF219 10416 bytes
SHA-256: 7a5a390219def6011d13013529d0a0725e3fafb038abcad02f8ae15d3ed6760d

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