Malicious PDF — malware analysis report

Static analysis result for SHA-256 45602751ba82c78b…

MALICIOUS

PDF

77.3 KB Created: 2021-03-16 21:54:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 0116a14ab3467d4ce4acae5ca25a71b6 SHA-1: da3ba05e932b887a7581479a79c06b02f4b1ec57 SHA-256: 45602751ba82c78b4a5b05e7c22e794bff18163b7395be3699bc355bbe67dc56
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'soxebez.ru', which is a strong indicator of a phishing or malware distribution attempt. The document body, though heavily obfuscated, suggests it is related to a PDF file, potentially a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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/wix?keyword=the+walking+drum+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4472776/normal_6026cf5b8fc20.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470964/normal_60099f784589d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449012/normal_602428f85e00b.pdfIn PDF document text
    • http://wekixelov.22web.org/what_is_intermediate_english_speaking.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481282/normal_5fed27433d63c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369907/normal_6009e0372fda1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471723/normal_602d0a27acd69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453327/normal_5fccc479d4244.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384325/normal_60432e6711d4d.pdfIn PDF document text
    • http://logefekur.22web.org/kaluvomew.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/kisimujuk/least_count_of_surveying_instruments.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6416a6f4-5837-4d6d-92ac-a700c4dac86e/c_language_compiler.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/vowels_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/temasoxibuzivaperimode.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/383d3fc7-f553-4631-8e5f-485c5c8e862a/sivoxesiwuzifenim.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/epic_seven_breath_of_orbis_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/lozitotodib.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/video_editor_free_for_windows_10.pdfIn PDF document text
    • http://taparuwuxos.rf.gd/antonio_carluccio_pasta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8d680e3-8f47-4f02-b249-5efc4a756c39/signs_of_a_female_pimp.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/47759253495.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7b296c7-753d-41ef-9f06-af3936adf5a0/how_to_sign_up_for_medicaid_waiver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd7526fd-6d42-47bb-bda6-2e33cb75bc20/requirements_to_be_a_public_relations_and_fundraising_manager.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/sierra_tipped_matchking_308_load_data.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/report_on_workers_day_celebration.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/aroma_rice_cooker_4_cup_manual.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_off0000f087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF087 5380 bytes
SHA-256: 360e23ed4bee7459ed89963cb535104c8aa2e6a9c89eb687be86ec4d91e97e6c
font_01_sfnt_off000102be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102BE 10968 bytes
SHA-256: 806096b6f241319529dbd90fd04e87bf33756fc5fa494ad89f1a440be126e345