Malicious PDF — malware analysis report

Static analysis result for SHA-256 7322bf0834208f62…

MALICIOUS

PDF

78.8 KB Created: 2021-02-07 21:07:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: f6b7805cd8430aad2af56105fd2e9922 SHA-1: ef586164558e8a4512192f0c2ca2617844e0cf1d SHA-256: 7322bf0834208f62a9853d68560d9823168d92fcda4ca84b13c47356065e7dd7
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to 'professional bachata dance performance' and is associated with an external URI pointing to 'jacksth.ru'. This suggests a phishing or social engineering lure to redirect users to a potentially malicious website for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wb?keyword=professional%20bachata%20dance%20performance PDF link annotation
    • https://cdn.sqhk.co/mukujoripu/cibqijl/business_relationship_management_professional_certification.pdfIn PDF document text
    • http://tosety.xyz/abbyy_transformer_2.0naxc3.pdfIn PDF document text
    • http://greyfruit.space/lucky_supermarket_locations_near_mex4pgn.pdfIn PDF document text
    • https://cdn.sqhk.co/folamudoj/gCLjehe/mupafipovuvuketepoxub.pdfIn PDF document text
    • http://ericksandoval.com/pitamoniv9lk2r.pdfIn PDF document text
    • http://salearea.pro/20235963859368l5.pdfIn PDF document text
    • http://luminar3-download.xyz/vanekavubefigeziwepa1plwd.pdfIn PDF document text
    • https://cdn.sqhk.co/kizofapekeku/hamjiV2/the_sims_mobile_hack_apk_2020.pdfIn PDF document text
    • http://biomaniix.website/raju_bhai_movie_hd_video_songsw6seo.pdfIn PDF document text
    • http://prizinsta365.website/deroxomarazu6zbh4.pdfIn PDF document text
    • https://cdn.sqhk.co/gewanunu/yjeifjj/xoxikavakisozidulo.pdfIn PDF document text
    • https://cdn.sqhk.co/sezepemanu/WihTome/mewe_sleep_reviews.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/jotizifime/liwuwes.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/kowomozubumobubol.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/hd_horror_movies_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/interview_questions_on_java_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/45545478158.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/kizelinudoroniruwaxepod.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_off0000f606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF606 5536 bytes
SHA-256: 16396dcf0e2bfe6e0f4d55ad7ddfc67d61c74602e1d85f587c9aba701330251f
font_01_sfnt_off000108a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108A8 10748 bytes
SHA-256: 2f88970e163e6ee949f335ee75538347d07c93d34d11cb28a76cc731d9a0df1e

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