Malicious PDF — malware analysis report

Static analysis result for SHA-256 761859ee09e32451…

MALICIOUS

PDF

83.9 KB Created: 2021-03-06 21:21:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: bf66d240fa65549b72d4076ef4cad186 SHA-1: a5ad8515634b923b30c545856f756926eb9353fc SHA-256: 761859ee09e32451f25cb9396f4e001591fc68bd9e67d23d3de9e9ab6875d546
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit vulnerabilities or trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=red+rising+movie+trailer PDF link annotation
    • https://tuxutumixebapi.weebly.com/uploads/1/3/1/4/131438514/2139627.pdfIn PDF document text
    • https://vataripisak.weebly.com/uploads/1/3/4/6/134600115/9491075.pdfIn PDF document text
    • http://modebedunizux.iblogger.org/gapewasiribisidenedotoga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479445/normal_603c1ddd3df03.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446776/normal_5fe0ecf55095e.pdfIn PDF document text
    • http://pufivuziviv.mypressonline.com/how_to_treat_acne_scars_at_home_fast.pdfIn PDF document text
    • https://wufikasuruxur.weebly.com/uploads/1/3/1/6/131636700/df8cef4931.pdfIn PDF document text
    • https://gimisezijumini.weebly.com/uploads/1/3/1/4/131453276/firizomaxeloli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_6041972de039b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://tulifal.onlinewebshop.net/the_destruction_of_black_civilization_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/vcredist_2014_x64.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/bazawasifekunizabulitari.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc3635ad-3bec-4483-b37f-2dcc9259b930/how_do_i_find_out_what_year_my_kawasaki_bayou_is.pdfIn PDF document text
    • http://xujalupa.epizy.com/kirchhoff_s_laws_questions_and_answers.pdfIn PDF document text
    • http://lodonevubepivor.epizy.com/tinaratixuwurisajinak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e228ea2-5399-480a-b630-6c93d9b1e452/pafararejex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baeb4222-7bb6-4432-a88a-3e362a85ff71/gopro_hero_3_specs_and_price_philippines.pdfIn PDF document text
    • http://butorinowu.myartsonline.com/wizisokuliwovufiziwoma.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/1919173051.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/biluzimebupibezuw.pdfIn PDF document text
    • http://jutebef.rf.gd/scientific_method_activity_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/chomp_sms_pro_android_app.pdfIn PDF document text
    • http://tirodubixuvix.epizy.com/14634944187.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_off0000f0cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CF 5000 bytes
SHA-256: 4e8288beb0ff335d7fbaea43fdcec3ff0efae3f12ad79a7c78606354eb74f49c
font_01_sfnt_off000101bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101BB 16176 bytes
SHA-256: 4a6a11bd24288eb3a6b2bdee9650c61aab3f9ebfa2d5216a097f95d8ab31d8fc
font_02_sfnt_off000132b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132B4 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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