Malicious PDF — malware analysis report

Static analysis result for SHA-256 459f06769754cbf0…

MALICIOUS

PDF

77.1 KB Created: 2020-12-23 02:22:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 28865a3a262d8192c792222d8f525343 SHA-1: 11654524f993f4caac2dba9466367ffcdc191413 SHA-256: 459f06769754cbf0711a8775f83b5d827251f855475e6c1dc53ae9dca116aa2a
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 0.9996

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://traffset.ru/123?utm_term=schwalbe+marathon+supreme+review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369932/normal_5f8856754b75f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498324/normal_5fcaf134026b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476282/normal_5fcda2662f4f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382201/normal_5f90eb937a1ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457312/normal_5fdb59c7e885f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409123/normal_5fce48dbabadc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fc2f5bb92c50b1a1e84fb95/t/5fce98f6458313167093d95a/1607375094466/speed_car_racing_3d_mod_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc565e860f2895dc105f20e/t/5fcb56f31ef6d1662fed2c75/1607161589491/santorini_greece_airport.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/72930611327.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f2f6c89e1c4b8fbea157/t/5fc2560a18e72e5fdb23a29f/1606571532743/commercial_air_freshener_refills.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe08425147b14804f9d138/1606289479505/voditazigovuvelewibunumun.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/kundali_software_free_filehippo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdfcbce76a868683c6625e5/t/5fe035ff42c0045a33273864/1608529407849/75100606612.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD12 5452 bytes
SHA-256: ddaeda93ed6ef4bdb265a900b4a0bf758b47756af7de1202c7bccf8e6f8f9c84
font_01_sfnt_off0000df7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7E 10680 bytes
SHA-256: 71f6717642cee79c25ccae709a8caa7b4f2657619972c4413b30e20e50982b89
font_02_sfnt_off00010441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10441 16140 bytes
SHA-256: 159427b32ed66bfbde86def5e6c2992bde67dfb25400c4000a37c9b59b949b61
font_03_sfnt_off0001193d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1193D 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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