Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab3814d9cf552cfa…

MALICIOUS

PDF

68.9 KB Created: 2021-03-07 20:41:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2af93149905e394171f5e9f844d20e06 SHA-1: 53e6d8dd00f77aa21ded24dedd2d864640a76c7d SHA-256: ab3814d9cf552cfa26d1cffa6166680be1ddbb0e899df2fee49e28a6a519976a
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/strik?utm_term=ps3+controller+for+sale+cash+crusaders PDF link annotation
    • https://cdn.sqhk.co/fapolokid/gdgigca/perfect_kick_2_apk.pdfIn PDF document text
    • http://viwoxufegoger.sportsontheweb.net/kenmore_he2_plus_washer_error_code_rl.pdfIn PDF document text
    • http://goldstein.berlin/gexumamugenijiburijipenewxfct.pdfIn PDF document text
    • http://luminar4-download.xyz/beretta_1301_comp_pro_owners_manualg44yc.pdfIn PDF document text
    • https://cdn.sqhk.co/medujebukoma/iihiJmt/21776209551.pdfIn PDF document text
    • https://cdn.sqhk.co/zosaremarebi/bjeehcj/rush_hour_friday_car_racing_games_online.pdfIn PDF document text
    • http://italia-doc.fun/golds_gym_xrs_50_exercisesh1up7.pdfIn PDF document text
    • http://femonejigajape.mywebcommunity.org/zapifosewomif.pdfIn PDF document text
    • http://shopwithsale.website/tuvokenalith7eo0.pdfIn PDF document text
    • http://fesunasisodenod.getenjoyment.net/vizekowe.pdfIn PDF document text
    • https://cdn.sqhk.co/jutalufelex/hCijmje/daily_cleaning_checklist_for_dental_office.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/kovuzolivakugegipogudupot.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/7327165774.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bavatesivo.myartsonline.com/harry_potter_book_1_release_date_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/annexure_e_for_passport_in_word_format.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/25358746329.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/verifone_stock_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/kupus.pdfIn PDF document text
    • https://s3.amazonaws.com/tubupejevomo/39000640872.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/baffin_bay_fishing_guides_riviera.pdfIn PDF document text
    • http://besafetusupug.atwebpages.com/xobiwojikiwavu.pdfIn PDF document text
    • https://s3.amazonaws.com/rizoli/chandrasekharan_analytic_number_theory.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_off0000d013.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD013 5272 bytes
SHA-256: 9e451af11b832d99ed9e8d182bfd4b57fbd31116f2f521f5de4556de9638334d
font_01_sfnt_off0000e1f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F7 10540 bytes
SHA-256: eb1bb517803ef5e712ecd11ebee8730ff579b72fba8cdb7142513a06f7a4020c

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