Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b907e9ffaf2ef83…

MALICIOUS

PDF

79.8 KB Created: 2021-02-16 06:56:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 461bf9afa273c112cecef1d333ccaf61 SHA-1: 77ed95bf54c48cadd287f63c14d17906d1716487 SHA-256: 2b907e9ffaf2ef83da54beba24d82d7e8a94b5566b5561cecb069421c1724ef0
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL, disguised as a search query, likely leads to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and the nature of the embedded URL suggest it's designed to trick users into clicking through to a malicious resource, likely for phishing or to download a secondary payload.

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://maypoin.ru/wb?keyword=how%20do%20i%20connect%20my%20haier%20tv%20to%20my%20home%20theater%20system PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481280/normal_601ef3dc36ceb.pdfIn PDF document text
    • http://mijuxub.66ghz.com/latest_android_mobile_phones_below_20000.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476927/normal_5fd30fab2194e.pdfIn PDF document text
    • http://vorasim.iblogger.org/xusesuwevumekufapap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418762/normal_601391e29f4ec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416669/normal_5fefb2b2cd543.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duwugedereni.epizy.com/slack_api_all_messages.pdfIn PDF document text
    • http://fexewon.rf.gd/payroll_system_project.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/rojukidakisig.pdfIn PDF document text
    • http://duwamiwimi.rf.gd/27182354572.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/tamil_god_amman_images_free.pdfIn PDF document text
    • http://rotaduwifomol.rf.gd/2._0_hd_movie_tamilgun.pdfIn PDF document text
    • http://doruxexim.epizy.com/cabin_crew_performance_manager_job_description.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/supply_of_services_agreement_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/progressive_relaxation_techniques_guided.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_off0000f9d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D6 5364 bytes
SHA-256: f88a6354dbbfe1c5e67a5ca5a8c8590e77173c0ab0545946794ab9e37882bd91
font_01_sfnt_off00010bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BFC 11200 bytes
SHA-256: 2c439eeafb2d908b3d0e8b1d313d79ec55f9decc63bce6dbeff86082256d1e39

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