Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e7ce13779f867c6…

MALICIOUS

PDF

80.3 KB Created: 2021-04-03 04:04:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d40c9e2e4826cdd70adceba0b6aada72 SHA-1: 982132f2e64a7cb2d35013cf23eff78a6a837ae2 SHA-256: 1e7ce13779f867c6dc851d17f4d29b5a4bf56b26397e8ec87beb0549c4ddd6c6
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 0.9991

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://dugedepap.ru/wix?keyword=starfinder+core+pdf PDF link annotation
    • https://cdn.sqhk.co/pugirunosamo/lgcmIie/fudetalutamepufopu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485935/normal_6021d8a2ab4f8.pdfIn PDF document text
    • https://cdn.sqhk.co/miviterul/jcifhbV/digiday_content_marketing_awards.pdfIn PDF document text
    • http://artrosil.xyz/44545715823hl99b.pdfIn PDF document text
    • http://steblin.pro/sazatotudolubivo1g5jl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404725/normal_6033d5de58257.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470975/normal_604dcf7fe02e8.pdfIn PDF document text
    • http://baranaydin.org/how_to_use_ergo_360_on_hiptkoaw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481988/normal_5fcbdd87e48ce.pdfIn PDF document text
    • https://cdn.sqhk.co/febutatesu/Piexghi/55263528097.pdfIn PDF document text
    • https://cdn.sqhk.co/tepikipo/jf0hdvC/writing_linear_equations_given_2_points_worksheet.pdfIn PDF document text
    • http://tgesheff.xyz/ajali_ya_morogoro_video1gaje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499656/normal_6024f9c5d6870.pdfIn PDF document text
    • http://belkwigs.com/vopirupilelugb2uaz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4529024/normal_6006d3704a293.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427499/normal_60579c1ccbb3b.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/luxelula/tigafixepokasupinadiwotug.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/76533597693.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/81895971333.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/zibagivipewura.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/36511426707.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/half_and_quarter_turns_worksheets_ks1.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/libros_sobre_habitos_alimenticios.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/how_do_you_clean_a_12_cup_cuisinart_coffee_maker.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_off0000f93c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF93C 5044 bytes
SHA-256: 03c1fc9acbb8d3f9a31f56d5b36d7900359a4ccdd557ce635a83ad6a498a2afb
font_01_sfnt_off00010a76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A76 11700 bytes
SHA-256: 344ac97ecbfcee69b73eae86d7fab62b94feff4768497b8173ad1075157b38a6

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