Malicious PDF — malware analysis report

Static analysis result for SHA-256 b31baddc01beb962…

MALICIOUS

PDF

79.5 KB Created: 2021-02-26 20:44:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: dfe5eba4ff8ebcbe0cb2ee7bf4e3cfac SHA-1: 37964e1301a5be7c1eef6ac05ad94fc420075e80 SHA-256: b31baddc01beb962a26e14f987fa337834bc2b2140dcd2dc9952f76b6a1da782
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a malicious domain, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest a phishing or credential harvesting attempt, potentially delivered as a spearphishing attachment.

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://gimoguvi.ru/strik?utm_term=how+do+you+apply+hair+color+to+your+roots PDF link annotation
    • http://lezigovedavide.getenjoyment.net/93378321214.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459922/normal_5fce97b628523.pdfIn PDF document text
    • http://vewisezozebo.22web.org/golfbuddy_aim_w10_vs_garmin_s40.pdfIn PDF document text
    • http://nejurizedutopi.iblogger.org/tutuapp_lite_ios_12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459792/normal_5fed9959e6443.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/t_fal_pressure_cooker_walmart_canada.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xumerapugegivo.epizy.com/bisufeseji.pdfIn PDF document text
    • http://gudodatu.rf.gd/edit_table_of_contents_template_word_2013.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/topagikatozofaduxoji.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/jedezakesepowopo.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/dojemisejuran.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/76337173900.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/jeruwepatolijevokuzujevaf.pdfIn PDF document text
    • http://zaxalamel.rf.gd/happy_anniversary_name_cake.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/american_express_halftime_report_hosts.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/the_elephant_man_book_author.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_off0000f9ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9AC 5316 bytes
SHA-256: efcafd5b0aa87e4033fc75fe5dbddd6d13fe5e8b34e4e5a504196b7520af7594
font_01_sfnt_off00010bca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BCA 10840 bytes
SHA-256: b20c82c123599ef706bbc8d1721a035b943c177973fef5fbdff7f5810614dc40

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