Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a04e078776ef3f1…

MALICIOUS

PDF

75.5 KB Created: 2021-02-19 23:05:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 445799c4d012138007f8b9001b6ceb2c SHA-1: e64e780e41ea926345341e6dd8134638244e4c09 SHA-256: 6a04e078776ef3f13654188eebe98ab7191d8959a5d0d6aae47306ad7262d21e
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 malicious domain, likely as part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it is designed to redirect users to potentially harmful 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://bologen.ru/wix?keyword=best+elliptical+machine+under+1000 PDF link annotation
    • http://my-favshopc.online/tivegorowr35q.pdfIn PDF document text
    • https://putavoguxula.weebly.com/uploads/1/3/5/3/135325624/3060991.pdfIn PDF document text
    • https://kipujoguburaza.weebly.com/uploads/1/3/4/3/134321983/4712860.pdfIn PDF document text
    • http://linza.media/relative_clauses_defining_and_non_defining_worksheet4oo7e.pdfIn PDF document text
    • https://xolijusir.weebly.com/uploads/1/3/4/0/134016651/980e45628f8.pdfIn PDF document text
    • http://gelchlen.fun/the_odyssey_emily_wilsonfa1i3.pdfIn PDF document text
    • https://tomavibevojivow.weebly.com/uploads/1/3/4/0/134016690/5cfd6.pdfIn PDF document text
    • http://life50it.pro/durango_boots_size_guideraq13.pdfIn PDF document text
    • http://7lessons.space/i_saw_him_cross_the_road_meaningdfcd7.pdfIn PDF document text
    • http://justamorem.com/71312349546lpo1y.pdfIn PDF document text
    • http://fruitslope.online/hotel_brochure_designd7tw6.pdfIn PDF document text
    • http://mybatut.store/minecraft_1._14._2_unblockedy5wp0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379856/normal_601cce35aa1ce.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/sowewazulejewi/xofarupumasafomiworuz.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/mahabharat_bhajan_odia_song.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/consumer_reporting_agency_background_checks.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/phrasal_verbs_english_exercises_advanced.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/22582778681.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/app_store_won_t_or_update_apps.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/fannie_mae_guidelines_earnest_money.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_off0000ea7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7C 5556 bytes
SHA-256: 022ec519cfdb97a1d3b17ade83480b595c410beae2d0cc1e195f606ce4513024
font_01_sfnt_off0000fd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD36 10412 bytes
SHA-256: 2c32f2376c21c43015cf7efb41080ecf7a46a8c8389c1e59d79c0354efe8a5b9

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