Malicious PDF — malware analysis report

Static analysis result for SHA-256 c66170d49186ed47…

MALICIOUS

PDF

77.2 KB Created: 2021-03-12 08:47:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 04e1f77328cd1d51f79ed5c9792553bd SHA-1: d94338c8a64d9abcf1530ce4e47535f383905174 SHA-256: c66170d49186ed47539664789257c3e5b5f335cb343cb680be81d0068dd4e690
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support the malicious nature of the file. The document body, though heavily obfuscated, contains keywords related to a product, likely serving as a lure.

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://botokaw.ru/strik?utm_term=bosch+800+series+dishwasher+black+stainless PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465705/normal_60337f3533ad6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446923/normal_5fcb40cb639c3.pdfIn PDF document text
    • http://bizowokare.getenjoyment.net/33947592675.pdfIn PDF document text
    • http://jokojujut.medianewsonline.com/26122758870.pdfIn PDF document text
    • http://pedugubugof.mywebcommunity.org/29920472153.pdfIn PDF document text
    • https://nobuzuza.weebly.com/uploads/1/3/4/7/134757083/bigebikunitorumijelu.pdfIn PDF document text
    • http://nokasosozigof.mypressonline.com/bewupamulomesodagowimip.pdfIn PDF document text
    • http://woxuruko.medianewsonline.com/how_to_open_a_pachinko_machine.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/how_to_do_a_bubble_map.pdfIn PDF document text
    • https://kemigaguni.weebly.com/uploads/1/3/1/0/131070112/lasebaripiloxi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://aefbb2f1-1cfc-4a48-aab2-d72547d84173.filesusr.com/ugd/2f3ac6_bbf8cacc3c8d49f7a5d1413854279012.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/bareilly_ki_barfi_movie_in_300mb.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/waiting_for_godot_act_1.pdfIn PDF document text
    • http://disoluje.myartsonline.com/94917807126.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/vipibimonuzetiw.pdfIn PDF document text
    • http://livirava.atwebpages.com/english_101_course_number.pdfIn PDF document text
    • https://4c5ad993-366d-4b3a-aa99-9b6f56583180.filesusr.com/ugd/01e791_846650a3549b432ca4e073f2cbd2e620.pdf?index=trueIn PDF document text
    • http://vubelifijam.atwebpages.com/87347782144.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/skype_for_business_web_application.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_off0000ed9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED9A 5708 bytes
SHA-256: 00832c52da7d89aad0f5eed3d220a1569a1bd2456b1ee02134a5f977e606537a
font_01_sfnt_off0001010f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1010F 11120 bytes
SHA-256: 5331f87305cb933c85e795e95c534fe21a5d46db0deb422e098a3af5b2f663c1

Open this report in the interactive analyzer, or submit your own file for analysis.