Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d9912f2d0da125…

MALICIOUS

PDF

77.8 KB Created: 2021-03-03 16:13:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 4b022c4fba67560165796fd7d908f35b SHA-1: b3844b022f5b28cea129d01aaa1475e9cfc57a53 SHA-256: e6d9912f2d0da12595c21e3074995659d0b6a705effe697bd98eff89bfd39e06
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a product listing for Nike shoes. This URL, `https://vilenefex.ru/award?keyword=nike+air+force+1+shadow+white+women%2527s+7.5`, is likely intended to redirect the user to a malicious website for phishing or malware delivery. The ML classifier and ClamAV detection strongly indicate malicious intent.

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://vilenefex.ru/award?keyword=nike+air+force+1+shadow+white+women%2527s+7.5 PDF link annotation
    • http://zekaxezixil.medianewsonline.com/sas_sgplot_bar_chart_color.pdfIn PDF document text
    • http://jawazapefaxuzit.mywebcommunity.org/how_to_find_a_weakness_in_an_article.pdfIn PDF document text
    • http://rajukilodagoje.mygamesonline.org/42833042212.pdfIn PDF document text
    • http://rovanenafet.getenjoyment.net/pezuvix.pdfIn PDF document text
    • http://xafopawiki.medianewsonline.com/what_obd1_and_obd2.pdfIn PDF document text
    • http://zujonatuvetivux.iblogger.org/79932857948.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jabirazefizoz.epizy.com/50694647347.pdfIn PDF document text
    • http://kuxemozoxabonag.onlinewebshop.net/nuverogaxenodevova.pdfIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/71096655354.pdfIn PDF document text
    • http://fulatunufesaze.epizy.com/cade_simu_3._0_full.pdfIn PDF document text
    • http://vipoxegoto.rf.gd/no_white_bread_challenge.pdfIn PDF document text
    • http://vimevuda.rf.gd/bioshock_infinite_save_location.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/xunupowuzojusapalube.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/53313031876.pdfIn PDF document text
    • http://lebidaxelu.epizy.com/which_sat_subject_test_is_the_easiest.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/wobozeviwuzimemowopil.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_off0000f2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EB 5676 bytes
SHA-256: 7c63b86464293bb416db0912537b7ea82823f18f951d0a0803aa714aac7593dc
font_01_sfnt_off0001064b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1064B 10364 bytes
SHA-256: 0d4297bdf93a6cc1d2be4ab0d4c1181fd2e9e1006aaf9163e68ba85a9ee76f52

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