Malicious PDF — malware analysis report

Static analysis result for SHA-256 696f4f0bf5be5fda…

MALICIOUS

PDF

72.9 KB Created: 2021-03-01 13:49:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: e6628702e13467b8f40090090140965b SHA-1: ac6d1d021a93b1e9714413a9a9f637545b0370c0 SHA-256: 696f4f0bf5be5fdabd8eff11b2b1df208295d3b8b153f6c2df37f84d52262eec
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of the primary URLs, 'https://botokaw.ru/wix?keyword=good+knight+story+guide', suggests a lure for search engine optimization or potentially malicious redirection. While no scripts were explicitly extracted, the presence of numerous external links and the ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/wix?keyword=good+knight+story+guide PDF link annotation
    • https://badetujunomut.weebly.com/uploads/1/3/1/8/131857650/nozod.pdfIn PDF document text
    • https://cdn.sqhk.co/fexivijemozu/sgdhfYU/pufun.pdfIn PDF document text
    • http://jedusajinud.mygamesonline.org/c_programming_language_notes_in_hindi.pdfIn PDF document text
    • http://warowusavi.mywebcommunity.org/quickest_way_to_get_rid_of_poison_ivy_rash.pdfIn PDF document text
    • https://cdn.sqhk.co/zukasedu/d4qbW3n/buwugezumajakafika.pdfIn PDF document text
    • https://cdn.sqhk.co/sogefuluf/cot34UJ/10921626001.pdfIn PDF document text
    • https://resodapiperuxa.weebly.com/uploads/1/3/1/4/131407292/wuwiwetaz.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/eiihejg/rurexigajapar.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/76410224845.pdfIn PDF document text
    • https://tovumanaxi.weebly.com/uploads/1/3/5/3/135392352/goxareb-sejisomarawu-fevotifujorug-kebanes.pdfIn PDF document text
    • https://nogiwesetegi.weebly.com/uploads/1/3/1/6/131637024/jolama-lazumebibav.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/tirimofufemukat/algorithmic_trading_and_dma_an_introduction_to_direct_access_trading_strategies_by_barry_johnson.pdfIn PDF document text
    • http://nepopenezum.rf.gd/html_form_input_type_password.pdfIn PDF document text
    • http://jegusimiluf.epizy.com/remington_pg6025_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/handy_stitch_handheld_sewing_machine_review.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/suncast_175_ft_hose_reel_home_depot.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/division_worksheets_with_grids.pdfIn PDF document text
    • http://jabelakejirer.epizy.com/83128497910.pdfIn PDF document text
    • http://jeborawaleko.atwebpages.com/python_interview_questions_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/chirp_software_baofeng_bf-_888s.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/53766387378.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/bipolar_treatment_guidelines_canmat.pdfIn PDF document text
    • http://kudawugijamino.rf.gd/annual_pay_slip_template.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_off0000e34d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE34D 5040 bytes
SHA-256: 46b521c2a88efe48cf237c7d44c95e14daefbfc73dca25b8f69584342fe5ed22
font_01_sfnt_off0000f47e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF47E 10052 bytes
SHA-256: e39e5d643a45ff9a6714468e387dc4e9aa6293fa02e8f9042b891bbf866ebea4

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