Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d26a8911355e351…

MALICIOUS

PDF

72.1 KB Created: 2020-11-22 04:27:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e33d6b87b5cdb7262be142ccb653d7af SHA-1: bf337be450a385398a5a1d593256d15278d60f59 SHA-256: 5d26a8911355e351cb5687d3404eeb56ea9a663fe5b97d869fd8a41a8bb23a37
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'traffking.ru', a domain often associated with malicious activity. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a potentially harmful website, likely for phishing or to download further malicious content.

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://traffking.ru/123?utm_term=flipper+partial+ada+code
    • https://cdn-cms.f-static.net/uploads/4418791/normal_5f9f726b2b335.pdf
    • https://niwurakoj.weebly.com/uploads/1/3/4/5/134588258/jifaz-xotokeguwevi-zobopapofew-panax.pdf
    • https://cdn-cms.f-static.net/uploads/4448549/normal_5fb5cdb88f636.pdf
    • https://cdn-cms.f-static.net/uploads/4478685/normal_5fb2b2bba030b.pdf
    • https://zebatezovas.weebly.com/uploads/1/3/4/6/134618099/sedulizi_suxifi.pdf
    • https://filafibiwi.weebly.com/uploads/1/3/4/3/134316544/soxuko_bejopenipitugi_kanegunasenupi.pdf
    • https://jabanomazekapuf.weebly.com/uploads/1/3/4/7/134743752/2710719.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zikeko/earth_day_trivia_questions_and_answers_printable.pdf
    • https://s3.amazonaws.com/rorives/lotro_essence_crafting_guide.pdf
    • https://s3.amazonaws.com/gizonukorad/bayou_classic_turkey_fryer_pot.pdf
    • https://s3.amazonaws.com/sesafefanulokam/genotype_phenotype_worksheet_answers.pdf
    • https://s3.amazonaws.com/legipalofi/canada_immigration_federal_skilled_worker_application_form.pdf
    • https://s3.amazonaws.com/metubevozisul/pubg_mobile_hack_for_emulator.pdf
    • https://s3.amazonaws.com/woneketelak/basic_term_of_accounting.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de96.bin
4cd91d5b2ff25430d2c7cd311d2fbaa5e7f48d373faffed589a1fdcf232405a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE96 4844 bytes
font_01_sfnt_off0000ef21.bin
b1f1ae97a0517c9242a5b352f5d482a2482a6536e86c8eba2ee0079153ff7ada		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF21 10832 bytes

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