Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d773e82d495e7db…

MALICIOUS

PDF

73.7 KB Created: 2021-03-14 15:41:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab12f544e4494568a73829ca0f041ede SHA-1: dd01cda50a859b43f12914a871b085b06b7f14e1 SHA-256: 0d773e82d495e7db74380cf5a67915c6583ffc989cd0312bbd2b6c61ea5c8cce
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that directs users to a malicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document's content, while appearing to be about database normalization, is a lure to encourage clicks on the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://nipisod.ru/strik?utm_term=what+is+1nf+2nf+and+3nf+in+database
    • https://cdn.sqhk.co/serojimo/hheMicg/xugugubezarujexevozi.pdf
    • https://cdn.sqhk.co/vonixilavot/ichghgJ/collision_reporting_centre_toronto_toryork.pdf
    • http://jonotijero.medianewsonline.com/how_to_replace_bose_headphones_ear_pads_qc25.pdf
    • http://zesenadozefut.sportsontheweb.net/soxawamitipulomab.pdf
    • https://static.s123-cdn-static.com/uploads/4422137/normal_5fec5236ec9b9.pdf
    • https://cdn-cms.f-static.net/uploads/4489596/normal_5fe77409edbcb.pdf
    • http://getepitisux.mywebcommunity.org/filirumemiwujedaparufasu.pdf
    • https://cdn.sqhk.co/bibilofefi/hi4hchc/union_electrician_apprentice_salary_california.pdf
    • http://ririzobe.medianewsonline.com/lekubemitasodevogob.pdf
    • https://cdn.sqhk.co/molivovuki/Es84mgd/83464338022.pdf
    • https://static.s123-cdn-static.com/uploads/4427783/normal_5fefa6a2d0c4e.pdf
    • http://pugisapi.mypressonline.com/who_is_mandalorians_father.pdf
    • https://cdn-cms.f-static.net/uploads/4471230/normal_601ce675b3e73.pdf
    • https://cdn.sqhk.co/zuzipogowita/jggigcm/89462963646.pdf
    • http://fibipowokogo.sportsontheweb.net/cultivo_cebolla_china.pdf
    • https://static.s123-cdn-static.com/uploads/4499636/normal_6009a896328a7.pdf
    • https://cdn.sqhk.co/rewufarelaze/hdsWB8g/derivatives_using_limits_worksheet.pdf
    • https://cdn.sqhk.co/nugizape/aifjfNU/zasemarezenokidoxipa.pdf
    • https://cdn.sqhk.co/vuwewiwudesi/icYjeje/zigzagoon_evolution_level.pdf
    • https://cdn-cms.f-static.net/uploads/4459164/normal_602266f3353c1.pdf
    • https://cdn.sqhk.co/zasokolof/BhcAijl/89870871042.pdf
    • https://cdn.sqhk.co/puxedimuwo/mIgfsX3/hot_rod_garage_decorating_ideas.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zudupaxub.myartsonline.com/differentiate_between_gdp_and_national_income.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0dd.bin
2b1938b088985f3a23674e015e4d3fb806cac4a7a9c1817e41b9a19979f5962a
pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DD 5368 bytes
font_01_sfnt_off0000f335.bin
90963661ffa4ec7b70df32a995e535f0c10effd46a65861e577d08923e5a8f68
pdf-font-stream PDF embedded font (sfnt) at offset 0xF335 11060 bytes