Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e20fdaf3af4f05…

MALICIOUS

PDF

62.2 KB Created: 2020-12-17 10:47:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4b1b707562ab0d0ae753dbefd339f435 SHA-1: 6ba6f0fb7df691f8dce8321e1d002349b2479e6d SHA-256: b2e20fdaf3af4f05fbc7ef12be71162b36c156cac7027cca5f72ba6d1028267a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • 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://traffking.ru/strik?utm_term=story+of+o+pdf+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408323/normal_5f97475699855.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/patotale/college_basketball_shorts_shorter.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/bradley_james_nowell_interview.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/11270960781.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/distributed_systems_mcqs_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/transferable_skills_cv_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc30d185bcb0228a2907835/t/5fccc9b45177ea328cbfe0de/1607256500999/raiders_of_the_north_sea_solo_cards.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd093bef3361272aedc33f/1606224189276/xiparomesonajanese.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/psychological_disorders_list.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/cdc_influenza_vis_sheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd46588c99b6d37a0e04e/t/5fca7f764e3f23050dee550b/1607106423512/3d_music_player_equalizer.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/soberania_alimentaria_definicion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8c01d3b-4e4d-4e75-bade-2d62892a1858/39801598895.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc72271418d7934ac756570/t/5fd62b1b226e9048faaf4a9d/1607871260542/jazz_blues_album.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/habitos_alimenticios_en_mexico.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/iycf_guidelines_india.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_off0000b433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB433 4852 bytes
SHA-256: 41d4cf6571b59662214bf1676edb2a98794805db739612fdb832d8c1b84aedad
font_01_sfnt_off0000c4d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4D4 11392 bytes
SHA-256: dd82b663bcbb9b122a448ac3104dee8dfb87e1423129eaca73a731a4c489b9d7

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