Malicious PDF — malware analysis report

Static analysis result for SHA-256 46468ac1cfb62911…

MALICIOUS

PDF

71.7 KB Created: 2020-12-18 22:51:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d1d54dcd2569f9c1ae9a46a5521df888 SHA-1: d38a98649557f3f73bc72a4aece52962fe608357 SHA-256: 46468ac1cfb6291182d7491809143ce12ff63e45b80dc15273d3df554878815e
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 suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, contains references to 'Ironman watch manual' and the authoring application, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/123?utm_term=ironman+watch+manual PDF link annotation
    • https://pozimetotekiv.weebly.com/uploads/1/3/4/3/134339641/pakedon_kolejukigu_buwon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa33f7c0-241e-4794-ae29-24c4a155221a/cgsizemake_is_unavailable_in_swift.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/clinical_hematology_atlas.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcdf4752c00fb19414e5faf/t/5fd62cd2034a586a4f3ca0f4/1607871699883/vusadegaziropudafitil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b853cc0-7fb1-497e-b004-b70cec31a058/64793000614.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0da19c35-2342-4376-9627-d5e514270d12/hanuman_ashtak_ka_path.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/enzyme_substrate_complex_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/23314126445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c89bd6f-11a8-43dc-bda4-fc179a235d49/licence_agreement.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/83775230538.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/tifolotutewo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b022992-ab74-4e68-afd9-3760564084b7/lopijuwazixabisomabuliki.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/39439875758.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/35319489918.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78b82d32fb7060d1273bc/t/5fd71034226e9048face987d/1607929908657/apple_me_email_on_android.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_off0000ddc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC5 4888 bytes
SHA-256: 2415a4416359e1bca3376dec79b0f1b73da06f0f564ba04255b6ffb47be91f57
font_01_sfnt_off0000ee47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE47 10376 bytes
SHA-256: a15ef04a632d3926a21889cdc7b32f80056d82835aec01002431709aff24b596

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