Malicious PDF — malware analysis report

Static analysis result for SHA-256 00d26a50aed555fa…

MALICIOUS

PDF

72.6 KB Created: 2020-12-13 21:55:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: af79bafaa5ca4276ed3482d0f45cd1ca SHA-1: 22fa437b10b01c62dfbf9768eda92eb2b619fb42 SHA-256: 00d26a50aed555fa82d0dfd92659dba15cbb5c8ee08c4346a23d9adc6573f426
156 Risk Score

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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffine.ru/strik?utm_term=peinados+para+ni%25C3%25B1as+faciles PDF link annotation
    • https://zoforute.weebly.com/uploads/1/3/4/3/134352948/vegesaragi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc384fde5c7695ca9ac2351/t/5fc56a779d793648404459cd/1606773367391/central_magnet_school_tuition.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/infinity_kappa_60.11cs_6-3_4.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2ee922e537a05ef165d44/t/5fc36e29cb3e0f5771bc2a8a/1606643243000/90021568983.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/9x12_pocket_folder_template_illustrator.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2223e02d7d67505df527/1606230563427/jelisagopajadonowunub.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/songflower_buff_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6690c9955c744b5610b9b/t/5fc80bcb33333d0cfb3f2405/1606945739217/tifiwuf.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/attorneys_title_guaranty_fund_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/melting_ice_cream_truck_meme.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c3d560f2895dc1e72903/t/5fc10e7c3485235c86ebf597/1606487676857/plural_possessive_nouns_worksheets_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/chowkidar_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/16438097564.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc12a77be9b6939510c7598/t/5fc442c49ee0f32b87db4153/1606697669242/humidity_sensor_switch_leviton.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_off0000d2b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B8 5360 bytes
SHA-256: 3bd24860dc62f5c4e917fd18398a5c79103261db3def1ca90f022b71c7c5de84
font_01_sfnt_off0000e4bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BC 1872 bytes
SHA-256: d84d133f8be175c41a9a30ca74c194ff4552f1bd6589e6972d6457ca5359e694
font_02_sfnt_off0000edab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDAB 11420 bytes
SHA-256: a08f3bf81277195c8d6156e427a49111386f801a661e63d681c680fc9ce1199b

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