Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6937fed5b67b49…

MALICIOUS

PDF

85.9 KB Created: 2021-04-27 22:18:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: ede84bd4a99c7686c924a5a30890a3ae SHA-1: 2c57391f86d167acd87c6aabec643de874bf5b7a SHA-256: ce6937fed5b67b4995b72cbd60d191f3f808fae5df95c340875f6d73da605cee
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely as part of a phishing or social engineering attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a common search query to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/strik?utm_term=how+many+calories+in+large+dunkin+donuts+coffee+with+cream+and+sugar PDF link annotation
    • https://cdn.sqhk.co/fivodewile/5ghheZl/86065229706.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvurero/vzyT1je/xixobafipazowabafudoro.pdfIn PDF document text
    • https://cdn.sqhk.co/wodabakope/0Kijieo/dojagilum.pdfIn PDF document text
    • https://cdn.sqhk.co/sozivowemin/Iidic02/pefimuzijivesijujo.pdfIn PDF document text
    • http://safilow.iblogger.org/f.05_table_sap.pdfIn PDF document text
    • https://cdn.sqhk.co/zimidenex/rwojhia/65819827404.pdfIn PDF document text
    • https://cdn.sqhk.co/dukasavubu/Nyibwgi/is_spacex_starlink_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/874b1b7d-f6a7-4514-a13f-7abd88a031dd/45869370098.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4437771b-2f8b-4bdf-afb2-324d64d18d43/are_real_pearls_worth_anything.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9de87e9f-9e31-4e81-964a-92a20762a5c2/noronideziluvusixobisi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc7bca20-b7ad-4734-99b3-1dc95d1be407/ap_bio_osmosis_and_diffusion_lab_answers.pdfIn PDF document text
    • http://tefuwileb.rf.gd/basic_english_speaking_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44a7e969-c2ef-4bca-91ff-8a5c60021b71/37667146797.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/16371494169.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2357c87-cc8f-4cd7-bedd-fedd0bdc7253/71574216280.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/tujajumimivuxugeponig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32f9fd13-aa2b-4a79-82ef-04a66f52ff52/inferno_novel_by_dante_alighieri.pdfIn PDF document text
    • http://lamekukibudinos.epizy.com/57023783843.pdfIn PDF document text
    • https://s3.amazonaws.com/retisovojor/levuleguwukorik.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/statistics_for_psychology_6th_edition_test_bank.pdfIn PDF document text
    • http://jiguxikawijax.rf.gd/97102417995.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17a061be-ceba-4d51-80cd-46372b56ddfe/ibm_data_analyst_certification_reddit.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_off00010e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E6A 5652 bytes
SHA-256: 7dfb97c78fba54f4be2fb79bbd309c64308f78b707d60fe05e2abd015b353122
font_01_sfnt_off00012187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12187 11188 bytes
SHA-256: 63f1f5b678deb494c24b06f518d32c22bdbf79697298fbe061a09d5cfb6e3627