Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80a63a31dce8e28…

MALICIOUS

PDF

87.0 KB Created: 2021-02-19 20:52:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 17493f5d556b0c8524c2bf5471c3a9ea SHA-1: f7dbca5bd8e7cda3a4abd7485addd0daf3900e5b SHA-256: d80a63a31dce8e28eb3b7424046955cf0b194a209acb37593af7fb4c3ea9e40f
96 Risk Score

Malware Insights

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

The file was detected as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded external URI pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely intended to direct the user to a malicious site.

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://druttle.ru/strik?utm_term=toyota+camry+xse+weight PDF link annotation
    • http://teplotronic.ru/white_christmas_scorevadwg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379855/normal_6000b36830888.pdfIn PDF document text
    • https://xevefozivoro.weebly.com/uploads/1/3/5/3/135339272/457072.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475999/normal_5fcdbbfd415f5.pdfIn PDF document text
    • https://temabodanifow.weebly.com/uploads/1/3/1/4/131454916/8ae9b1c65af6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368251/normal_600bbef45ff73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453906/normal_600a1dc6c4e6b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457570/normal_5fcea48827db0.pdfIn PDF document text
    • https://joxegozul.weebly.com/uploads/1/3/1/0/131070165/vozijuni.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371809/normal_5fe9f8674a2f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385230/normal_5feef4358e20d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485299/normal_6015416dcee39.pdfIn PDF document text
    • http://healthit.space/134179222847dh0a.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/kewakuko/xudoseliwupipisumenevuk.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/creating_complex_sentences_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/how_cognitive_behavioural_therapy_works.pdfIn PDF document text
    • http://tinijev.epizy.com/ate_ve_su_2_yandex.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_off0001135d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1135D 5392 bytes
SHA-256: 206876947d5197efd86a0f518d212f7502eec3db803bcddbfedaaed9fc28f185
font_01_sfnt_off000125a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125A7 12664 bytes
SHA-256: 89a657ec11b557c73adf1e4d27b878daa409ac85d24f905b7ecf43c67aa01bd8