Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd0f67b0b52ad3d0…

MALICIOUS

PDF

64.6 KB Created: 2020-12-18 14:32:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: abfb391850087cfd55e2b420d6e0e9a5 SHA-1: 11957a86d2ac8f94b8d3843500399079ebcffe23 SHA-256: bd0f67b0b52ad3d0cfdbb2b0dfc709b7ba657bf4848bbcffb4b3d6d446d343c5
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 0.9998

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://trafffi.ru/123?utm_term=make+analog+synthesizers+ray+wilson+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4474727/normal_5fa7e1ebc477d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4527164/normal_5fc1770169b49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371020/normal_5f96bb840b1b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446917/normal_5fc68111064f0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd35f904971d5155d5820b/1606235647121/a_cappella_groups_in_pitch_perfect_2.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0cf44e5c7695ca99b2c1d/t/5fc2c611eaf37e3b64f82962/1606600210429/48369425897.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ce563f2-c5e4-49d3-9ed8-8ea3cb8f37cc/mogiliwobupaxajaseji.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/sokipadobasugibovopowude.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f169b46-5d60-49ec-8475-c4d10c7d4926/geometry_dash_2.11_apk_hack_android.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/74205000210.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f4078787e879896c419e/t/5fc15ff63f75b1664307cdcd/1606508535378/wevibiburekuladejekovinud.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/free_html_calendar_template_for_website.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e006a879396864083677/t/5fc34f4ef3de5e49b5ce40cb/1606635343321/expresate_spanish_book.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/39956381722.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/manual_for_bosch_silence_plus_dishwasher.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57b0a116eb00e3c6ae87f/t/5fc82c5826a3037b43317ed0/1606954077974/the_floor_is_lava_season_2_application.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_off0000bc95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC95 5616 bytes
SHA-256: 44e9c60e91c81823d2b1843237a1fb9aa5ded57730fb2057c48520e83e74e211
font_01_sfnt_off0000cfe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE6 10424 bytes
SHA-256: fa1989ff3bf3e10623153f536869bb27bfd1064434c4bd0e3fdb9a5f79b5d59e

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