Malicious PDF — malware analysis report

Static analysis result for SHA-256 08779c54ae68a217…

MALICIOUS

PDF

90.0 KB Created: 2021-02-25 04:04:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 9910f6ef5720365224357324a4236540 SHA-1: c0b1667bc3ad18d9e34b9d91fa6bbf8d460de402 SHA-256: 08779c54ae68a2174f99e0977caacd2df821a3ef6e5fccb3e3a047c2998fe677
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded malicious URL point towards a phishing or malware delivery scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/strik?utm_term=what+to+include+in+a+critical+appraisal In PDF document text
    • http://newipufisatag.scienceontheweb.net/mevuvude.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422133/normal_600f7ed66ac52.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478961/normal_5feb8bb1e5b2f.pdfIn PDF document text
    • http://velixone.66ghz.com/insulation_foam_sheets_south_africa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468831/normal_5fca885181775.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459165/normal_601ebe1a6a194.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bogurivesinoni.rf.gd/wix_embed_youtube_videos.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/beauty_school_dropout_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/kavugusepe/lalikobejobasijupilubexub.pdfIn PDF document text
    • http://tavoxelelenasi.onlinewebshop.net/avent_microwave_steriliser_manual.pdfIn PDF document text
    • http://dizoleline.epizy.com/how_to_get_certified_as_a_veterinary_assistant.pdfIn PDF document text
    • http://letozin.rf.gd/display_trusted_ca_certificates_android.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/lojiwopa.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/ableton_live_10_standard.pdfIn PDF document text
    • http://livirava.atwebpages.com/90736957106.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/nudejabavemizuxirogutibe.pdfIn PDF document text
    • http://jeborawaleko.atwebpages.com/gedituvegux.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/ketesisejosasat.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00012afc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x12AFC 26304 bytes
SHA-256: e04e59ebf9666a2825eb0a277a98a6bf1353b64719e49a6c26ad8d156986e380
font_00_sfnt_off0000f478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF478 5176 bytes
SHA-256: 9899294b83aa90f3a226f8d850cd64c23f2d46f750750e1dc616d6d7ba726470
font_01_sfnt_off00010615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10615 10864 bytes
SHA-256: 878e201f9e957a4608e9665fe92808e987736cef2931061f0017aa3465f80e1e

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