Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4ca2de6291aead9…

MALICIOUS

PDF

73.8 KB Created: 2021-03-11 11:43:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ebc3598b59b9120b5f7826d5a77d2298 SHA-1: b8d2a1d1e4ac6f7ed106ec04250558c5efabf50e SHA-256: e4ca2de6291aead9b44ab35bea8cdda28d10511fb392261f4dac17c80c3c1d2e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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/award?keyword=revenue+audit+procedures+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413374/normal_6019980526b1e.pdfIn PDF document text
    • http://tikopariwoxa.mygamesonline.org/66124381454.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500883/normal_5ff4c1c73f17e.pdfIn PDF document text
    • http://dokaxirugik.medianewsonline.com/propiedades_mecanicas_de_materiales_compuestos.pdfIn PDF document text
    • http://gadatoreneperil.mygamesonline.org/speak_now_2_workbook_answer_key.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378608/normal_5ffcae2115d5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463543/normal_6038332de4764.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374954/normal_600bc8e8c288a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497368/normal_602abcd9a1db2.pdfIn PDF document text
    • http://tatuxuvoziparu.mywebcommunity.org/gonavuturadoxif.pdfIn PDF document text
    • http://siwupojotuj.getenjoyment.net/ti-84_plus_ce_games_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486351/normal_5fcb3aa135475.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379626/normal_6018f41b1a256.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/xapijifas/sixuzaf.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/management_discussion_and_analysis_report_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/where_the_wild_things_are_book_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/cengel_termodinamica_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f86029d-d4a8-4f15-afa0-af44260b2f64/23185918475.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a06ae4a8-c2d1-4753-854d-abde567c96ec/the_gabriel_method_morning_visualization.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/airline_manager_2_mod_apk_revdl.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_off0000e7e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E0 5184 bytes
SHA-256: 009805079b87176549d464a6742a6dc1ed8be59876c2f1ff66976ae8ee4252a7
font_01_sfnt_off0000f9a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A4 9640 bytes
SHA-256: d736e8e79ccbf4e8c4ba1a3ec103ca27204c1afc508c48f0dd1795b0ad0a369d

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