Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d673eb617d29a2f…

MALICIOUS

PDF

74.5 KB Created: 2021-03-25 02:55:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a7396b4193204123d3d001a84bf14fca SHA-1: 5f3466a0e150a32a936b3ded314b85276efa87bb SHA-256: 9d673eb617d29a2f37d08c5f375a055188c4ed02f52d2665cc5ebb185884bbf1
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 0.9995

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://dafemum.ru/wix?keyword=deer+blind+plans+free PDF link annotation
    • https://cdn.sqhk.co/mudifuto/ifzhfHw/24478270002.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/jdifrWE/80896141235.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411932/normal_605a173d0cc0c.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/jfjiVVw/expanse_meaning_in_bengali.pdfIn PDF document text
    • https://cdn.sqhk.co/xexisini/i6Kjcly/brasfoot_2020_crackeado.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452588/normal_600f816fc83d6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409244/normal_5fd06a92519b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446489/normal_602acfb6e436c.pdfIn PDF document text
    • https://cdn.sqhk.co/wamobuzo/h6icjiu/true_surf_hack_apk_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/xisalaximel/j1yKLjd/joker_2019_ringtones_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410462/normal_5fd9c5f045928.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451356/normal_5fdc3dbdceea3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490534/normal_5fe8662005827.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/dudujopixejikug/baby_bassinet_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/angular_simple_login_form_example.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/fupojovidegetajozowepuzir.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/italy_travel_guide_in_winter.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/id_card_template_images.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/doctor_directory_html_template_nulled.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/63196533218.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/41286644511.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/95941055398.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_off0000e57b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE57B 5176 bytes
SHA-256: af3dc9f16cb5a506f9fef0e4080b24747fef0cb2783c87ca808013ea88e47341
font_01_sfnt_off0000f71d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF71D 10968 bytes
SHA-256: e6613e756ca96fff9614668dee7360795abe20b4712f12e27e0e682474ec37ff

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