Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0e6f43597bb53ef…

MALICIOUS

PDF

76.3 KB Created: 2021-04-03 06:09:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 9a5ab98819625949ae0e2de0e8db9bb3 SHA-1: e3e9b4c9834650339bded4d73d3a08a8cff9e730 SHA-256: a0e6f43597bb53efc263dfaf3bf003ed3343d7eeebb26781d4db7e00fb23e0de
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to car tire sizes, aiming to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/strik?utm_term=2013+subaru+impreza+hatchback+tire+size PDF link annotation
    • https://sutuvawubu.weebly.com/uploads/1/3/6/0/136055635/kesukapiterir-vakubu-didekapedoxu-jijixada.pdfIn PDF document text
    • http://rigipufefe.iblogger.org/animal_defenses_worksheet_grade_1.pdfIn PDF document text
    • http://onesmall.space/escape_plan_3_trailer_espanolybd1n.pdfIn PDF document text
    • http://alifan.store/3875476113118qsi.pdfIn PDF document text
    • http://cmbmarketing.agency/19138029553ts41a.pdfIn PDF document text
    • http://ing-cliente.com/guzixeueou2.pdfIn PDF document text
    • http://20970907.net/the_little_book_of_market_wizardsg1c40.pdfIn PDF document text
    • https://siroxejuvumuku.weebly.com/uploads/1/3/4/6/134657252/1981215.pdfIn PDF document text
    • http://juvovagesubo.mywebcommunity.org/36960133786.pdfIn PDF document text
    • http://dexiserabasavo.mygamesonline.org/online_editor_insert_pages.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://luwawabegopit.rf.gd/solid_principles_uncle_bob.pdfIn PDF document text
    • http://ledukuxadom.epizy.com/77273566303.pdfIn PDF document text
    • https://s3.amazonaws.com/gonasidupij/19571247943.pdfIn PDF document text
    • http://wizuxamop.rf.gd/zuviravezivabolopokusaso.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/sharp_lc-24le175m_factory_reset.pdfIn PDF document text
    • http://wasizematimom.rf.gd/jeevan_amar_premium_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/sciatic_nerve_pain_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/56892206578.pdfIn PDF document text
    • http://kofukobekageja.epizy.com/cds_ii_2019_question_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/87116501215.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_off0000eb93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB93 5788 bytes
SHA-256: 693649b92cdbe4e5cb3043081cb2db8a31b6037d0c3a3b1cb609015707a994a7
font_01_sfnt_off0000ff1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF1B 10836 bytes
SHA-256: 51c05ff57f62cb7391fdfa64e47295785d6e43f05322a4740a7e439224746a41

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