Malicious PDF — malware analysis report

Static analysis result for SHA-256 055044b2a00ed527…

MALICIOUS

PDF

76.5 KB Created: 2021-02-12 11:45:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 837564bcda35f66c780941cc3da3c2c5 SHA-1: 822436a4ebc76760d1a8ebc7dbd9fadc00158e81 SHA-256: 055044b2a00ed527e2322c45e862d68131edb688eb40e29c95ac2badc3194a1b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a URL that mimics a search result for 'the musketeers season 2 episode guide', likely intended to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing or redirection attack.

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://maypoin.ru/wix?keyword=the+musketeers+season+2+episode+guide PDF link annotation
    • http://adanakebap.org/18971981968h0zmp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384030/normal_60225d3e8d545.pdfIn PDF document text
    • http://nonretloli.site/jezonotedudinel9uarb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372382/normal_5fc644580193a.pdfIn PDF document text
    • http://lavorunolutoga.22web.org/snake_pass_pc_game_free.pdfIn PDF document text
    • http://nout-sale.site/rugufipufevazie3pqw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376870/normal_5fcc70bcacfe7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424024/normal_5fcd12b0926be.pdfIn PDF document text
    • http://zdsshop.top/pupuk_organik_cair_bonggol_pisang202b7.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/ganubifirigevi/android_10_oneplus_6_xda.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/xoxipeduwadeboxagogiduni.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/bcbs_il_medicaid_appeal_form.pdfIn PDF document text
    • http://mutodilevo.epizy.com/noden.pdfIn PDF document text
    • http://borovob.epizy.com/nagasivetilipux.pdfIn PDF document text
    • http://dogabofeki.epizy.com/xbox_one_platform_games_2018.pdfIn PDF document text
    • http://xodojes.epizy.com/16069756726.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/spotify_apk_latest_version_free.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_off0000ed19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED19 5488 bytes
SHA-256: a6f4ff9709060d72028ca87aabb25f3e13ff61fc43bc59035408298626eb5961
font_01_sfnt_off0000ff94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF94 10720 bytes
SHA-256: 647f87be5867379a663c6739349a4922896fc7678d2537bf955f62af991eaf78

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