Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d16b6b369a6f409…

MALICIOUS

PDF

87.2 KB Created: 2021-03-19 03:41:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d8da908f42f54d02e192e978373ecd70 SHA-1: 5631c941efe5efdbc0f5203093942e0ec46ea91b SHA-256: 9d16b6b369a6f409c943b1894d07cd0b2bc5eebdb02dff70c1f5870f45652343
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 0.9992

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://bologen.ru/strik?utm_term=what+are+the+four+types+of+miracles PDF link annotation
    • https://cdn.sqhk.co/fegadosijete/oyjitGa/70853415124.pdfIn PDF document text
    • http://tifusavegapawuf.mygamesonline.org/lowawerivilawanum.pdfIn PDF document text
    • http://norasuzajo.mywebcommunity.org/azitromicina_suspenso_bula.pdfIn PDF document text
    • http://sosed.market/cuisinart_bread_maker_cbk-200_manualnuek1.pdfIn PDF document text
    • http://gevazuvunurodum.22web.org/23757443633.pdfIn PDF document text
    • http://kasiwewevono.iblogger.org/21449868411.pdfIn PDF document text
    • http://endi-itali.space/32575161570gpnci.pdfIn PDF document text
    • http://jirenaxapibetig.scienceontheweb.net/98605832421.pdfIn PDF document text
    • http://powerhdniy.space/bosowesetug93j.pdfIn PDF document text
    • https://cdn.sqhk.co/kubepugemaki/inq8p2A/46178475859.pdfIn PDF document text
    • http://zupanito.iblogger.org/tratado_de_paris_cambio_climatico.pdfIn PDF document text
    • http://skout.tech/calculus_with_differential_equations_freeitwap.pdfIn PDF document text
    • http://kafidovomiguvo.mywebcommunity.org/didojevuwitanopixe.pdfIn PDF document text
    • http://lafutib.sportsontheweb.net/44718067579.pdfIn PDF document text
    • http://igcopyrightforhelps.com/56653937248uuzmp.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/kisimujuk/louisville_slugger_black_flame_pitching_machine_instructions.pdfIn PDF document text
    • http://piwazazizalo.epizy.com/beginner_somewhere_over_the_rainbow_violin_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/zupuzofolukuvafitaleg.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/96594792233.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/29087718545.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/silence_book_sparknotes.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/moxawirorokafiwixikog.pdfIn PDF document text
    • https://s3.amazonaws.com/xepululejiwof/pivuzejimipibi.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_off000115ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115CA 5372 bytes
SHA-256: 70f6691c209b6863d3c455076734c847516d5744c338baf8b631e03e4f223d87
font_01_sfnt_off000127fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127FA 11152 bytes
SHA-256: a70096912b9601b72c06a3a5a146780661f04989ecb3fe8d290ae3a74df52161

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