Malicious PDF — malware analysis report

Static analysis result for SHA-256 682b835c8ec72ef1…

MALICIOUS

PDF

88.4 KB Created: 2021-02-25 16:20:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 9bad5bab8ccc845858ef8a4f95f90be2 SHA-1: 2247f1e83a5126374d08c9b5c42ce2ac171d748e SHA-256: 682b835c8ec72ef119efbd6147108a87626fab132062b131310205aebb726e55
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that mimics a search engine result, likely intended to trick the user into visiting a malicious site. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of phishing or malware delivery. No scripts were extracted, but the presence of external URIs and the document's deceptive content strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/strik?utm_term=what+is+the+difference+between+7g+tronic+and+9g+tronic PDF link annotation
    • http://thrivewebs.com/ejemplo_de_un_guion_teatral_para_nios_cortokyvmc.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/jTxankk/world_hockey_championship_2019_bracket.pdfIn PDF document text
    • http://kikababono.mywebcommunity.org/what_constitutes_a_contract_in_uk_law.pdfIn PDF document text
    • http://priz24.site/japujinovudelak6lr6v.pdfIn PDF document text
    • http://weinmvc.net/digital_marketing_job_interview_questions_and_answerscq2mf.pdfIn PDF document text
    • http://losqutoq.online/how_do_you_describe_the_climate_of_an_organizational6w9mw.pdfIn PDF document text
    • http://navevukosuso.mypressonline.com/ralepix.pdfIn PDF document text
    • http://trokot-newshop.online/konuwovexaxilupiwowj3hy1.pdfIn PDF document text
    • http://sosed.market/outbreak_words_meaning_in_urdutt96j.pdfIn PDF document text
    • http://tufofol.medianewsonline.com/76067864350.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470385/normal_5fd2b036e6b9b.pdfIn PDF document text
    • https://cdn.sqhk.co/tagisaxozof/ezjc6ib/30533562658.pdfIn PDF document text
    • https://cdn.sqhk.co/rolaravez/iNtyB6H/e_ticket_refund_policy_emirates.pdfIn PDF document text
    • https://cdn.sqhk.co/beratinuga/iexlhfo/wexalobutumezokez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373241/normal_6016bcacac0fc.pdfIn PDF document text
    • http://emmetrix.net/pewuvudenuvupekerobidovyp4d4.pdfIn PDF document text
    • http://replyua.site/coordination_compounds_class_12_board_questionslvq1i.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/divexikav/21003139279.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/update_android_samsung_a7_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/14525217859.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/scottish_household_survey_technical_report.pdfIn PDF document text
    • http://gutekuretejapoj.onlinewebshop.net/which_coffee_maker_is_the_best_for_home_use.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/android_auto_portugal_2019.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f52f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF52F 5520 bytes
SHA-256: 6649e020b45f19271520f76e1a2ba4b216e193a4bb4cfee5c37d5d8be11806b8
font_01_sfnt_off00010804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10804 11280 bytes
SHA-256: f0b75548d51ddb19bda0f1d97c8b324ec3142605630e5de9fdb479cf14c6cb5c
font_02_sfnt_off00012e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E79 16064 bytes
SHA-256: e456b5595f6e624407e10960d432782794320480929f7deed69280b081edb597
font_03_sfnt_off0001431b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1431B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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