Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5ff36e3b00f6e5…

MALICIOUS

PDF

72.9 KB Created: 2020-12-31 22:34:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 26b0188ea698661d356ef01c0dcd03c1 SHA-1: 7ba04ba414054a8d689e859edac7220d2dc22729 SHA-256: 0d5ff36e3b00f6e5c53a61b84279968e361255d099b8e7768797d7d5348fd454
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that mimics a search result, likely intended to trick users into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the PDF structure and embedded URI are sufficient indicators of a phishing lure.

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://trafficel.ru/strik?utm_term=photo+editing+change+background+color PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4478131/normal_5fc7e92701776.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/guwutivupudutu/wofosipivovefidi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/672b641f-8f58-4903-bfe7-0812c5ceb84f/4924793669.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/how_are_you_meaning_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/dazazeror.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad5e8df8-3759-4755-9855-5a79ee214f8e/tyrell_n6_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbbb47d1-d56b-4eff-a5f0-5674886bdd0e/gomumawagurevisisudese.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/67380346231.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/apex_predator_piano_sheet_music_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9066e306-bf9b-449b-b0f6-07d40ff3d57b/mofudukere.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/325933bd-6f01-4ee7-a159-51166011a67e/80055118401.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/materials_science_and_engineering_r_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/niv_bible_study.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/280ffcbc-ed15-4ad4-9b46-6855f3365ab3/yanmar_1610d_owners_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C3 3712 bytes
SHA-256: ba0d4ae573f502a00f944f13ea442bdaf36ee75e6997d1a8db7310ae4760daba
font_01_sfnt_off0000e0f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F8 5228 bytes
SHA-256: d7deb36159070de6ad043bc52ae4db882632501e2d77997dfc4ae67aef96cb74
font_02_sfnt_off0000f2ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BA 10408 bytes
SHA-256: d4c2bcb9a4c77db7d7eb617d1966c14b86c369c013a013a08e5fe702941724ff

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