Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0244e1076c63027…

MALICIOUS

PDF

77.6 KB Created: 2021-02-17 21:40:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 33fe81bfcc795fde995266695a3981da SHA-1: 3e96f79fe8d45576ece8401e060f19fa0c8b2f37 SHA-256: b0244e1076c6302760fe2d50c654c5faa735a5dab3fb2e2c7809b24726c77364
96 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ML classifiers and ClamAV, indicating a phishing or scam attempt. The document body contains text related to medical supplies, and numerous embedded URLs point to external resources, likely for payload delivery or further phishing. No scripts were extracted, but the presence of embedded URLs and the nature of the document content strongly suggest a malicious intent to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/strik?utm_term=easy+touch+u-100+insulin+syringes+31+gauge PDF link annotation
    • http://j3vnci4.xyz/kayle_guide_9._21u339s.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411273/normal_60011b2b1fc85.pdfIn PDF document text
    • https://cdn.sqhk.co/nanubebebot/27bicjh/6101292008.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495551/normal_60081f9931608.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389809/normal_5fdb740cb87af.pdfIn PDF document text
    • http://gisonanezoboru.iblogger.org/32255975943.pdfIn PDF document text
    • http://ecoterritory.store/36111473421lb417.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386613/normal_600c878e7cd49.pdfIn PDF document text
    • http://frontglass.xyz/you_raise_me_up_lyrics_westlifej2x8o.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426830/normal_5fcd6c6839b21.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378386/normal_5ffe600052624.pdfIn PDF document text
    • http://glasshookahcatering.com/crusher_tower_operatorbksq6.pdfIn PDF document text
    • http://themarkuzmusic.com/alain_touraine_podremos_vivir_juntosxsegt.pdfIn PDF document text
    • http://nasporte1.fun/shahrukh_khan_songs_bestwapksjnt.pdfIn PDF document text
    • http://wapazezaduv.iblogger.org/97909417120.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bajebozirodiv.epizy.com/chevaliers_de_sangreal_sheet_music_violin.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_off0000f148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF148 5512 bytes
SHA-256: 0e6ce63de7302f39ef815036ccda521ad305cddc1b366a33692c9b34f6d48386
font_01_sfnt_off0001041a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1041A 10960 bytes
SHA-256: 775f0b49f181072c1a5b10ba3de812488bb2426a6e76325a88e1dfa243aa2ee7

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