Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4b11e89cf073e5a…

MALICIOUS

PDF

73.6 KB Created: 2021-02-25 06:43:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 48eff7068a511d8d37ab0c0ed5086903 SHA-1: 90961922b9310ccf24f480f68b706a7ceae50669 SHA-256: a4b11e89cf073e5a3a092df75ff7fb8d3f524a2f135f1deb5c4922dd5565158a
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://crophysi.ru/strik?utm_term=john+deere+e160+48+inch+mower+deck+belt+diagram PDF link annotation
    • http://douchehub.xyz/1564788005781nxi.pdfIn PDF document text
    • http://taforojujutusig.mygamesonline.org/troy_bilt_lawn_mower_belt_replacement.pdfIn PDF document text
    • http://antileqphh.site/91841328323n6yrw.pdfIn PDF document text
    • http://getyourscore.info/pile_foundation_design_excel_spreadsheet9hcl3.pdfIn PDF document text
    • http://mishabelle.ru/391040760548n7be.pdfIn PDF document text
    • http://chambre.xyz/edexcel_igcse_ict_revision_guide7exnn.pdfIn PDF document text
    • http://uggi-ugg.com/joseph_campbell_heros_journey_meaningjxhen.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/lasesiwamanuw.pdfIn PDF document text
    • https://wekupadafar.weebly.com/uploads/1/3/5/3/135315244/loradebubetum-degijotava-nediburuzasa-dapafasasiladuw.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/nowokil/bobbi_brown_corrector_shade_guide.pdfIn PDF document text
    • http://xafonabikox.rf.gd/19949061877.pdfIn PDF document text
    • http://gafodix.myartsonline.com/wuwadopuju.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/soriwaxafaral.pdfIn PDF document text
    • http://davafegi.epizy.com/47338816046.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/selunulowoteko.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/laxajel.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_off0000e160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE160 6092 bytes
SHA-256: 51fb63decf39d78fa7bed4829c8db579e77f5cc44871eda380a63f7346573ebe
font_01_sfnt_off0000f60a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF60A 10264 bytes
SHA-256: 6c901b6fc1f4b89d77b9cca1b6ab43bade263f8d71acdfff1e9f5d9ba19e41f2