Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6c9332535b40c52…

MALICIOUS

PDF

81.5 KB Created: 2021-02-21 04:11:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0d4ef432b97335cfd5e7b77963acab95 SHA-1: 8268bc8f58249ce47ebbd2876275f839e0372860 SHA-256: e6c9332535b40c52372eb0a9be3ed6ba68e5858e0a56fe98ffedbbc53d784dc2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of the malicious URL is a primary indicator of compromise.

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://leonvi.ru/strik?utm_term=what+is+the+sense+strand+of+dna PDF link annotation
    • http://lazerepil.site/chronicles_of_narnia_full_movie_480p6k2rj.pdfIn PDF document text
    • http://sellamorem.com/18941835977nsf00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527747/normal_5fc7e499bfefa.pdfIn PDF document text
    • http://apparentlyopt.com/beautiful_in_white_piano_sheetzzjpj.pdfIn PDF document text
    • https://cdn.sqhk.co/gapekozuwa/hgi6Rbf/install_mod_menu_gta_5_ps3_no_jailbreak.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/yiazjeY/check_cashing_store_hancock_cape_coral_fl.pdfIn PDF document text
    • http://prizinsta24.space/114_chakras_listcthli.pdfIn PDF document text
    • https://cdn.sqhk.co/vapatibu/hhfnghK/51459125990.pdfIn PDF document text
    • http://znasila.ru/wizojebomiwevuk2x04x.pdfIn PDF document text
    • http://ourfanz.com/889946315158384c.pdfIn PDF document text
    • http://lifeshop.pro/self_employment_lettersbnou.pdfIn PDF document text
    • http://dixunawizodel.iblogger.org/share_purchase_agreement_template_nz.pdfIn PDF document text
    • http://auth02mobility.com/xageniweburexotus432a.pdfIn PDF document text
    • https://cdn.sqhk.co/simikitivo/lJphiii/zukorojanapoxolejizi.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/xeropizuwe/free_printable_thanksgiving_worksheets_for_3rd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/baaghi_2016_full_movie_free_bluray.pdfIn PDF document text
    • http://deketinak.rf.gd/30470324853.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/allcast_premium_apk_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/61711430664.pdfIn PDF document text
    • http://janoniwopezodul.epizy.com/google_local_guide_gifts_2019.pdfIn PDF document text
    • http://jajoxutevo.epizy.com/facebook_page_cover_photo_size_template_psd.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_off00010229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10229 4976 bytes
SHA-256: f47505603e52ceb21c2d40fadd0c436648691f446a249d3e40c1ed8184aaf8c1
font_01_sfnt_off0001131c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1131C 10820 bytes
SHA-256: de52f7a8798467b8381b4186dab39f4cae6fd3b079d58ab805ebd910c4171d18

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