Malicious PDF — malware analysis report

Static analysis result for SHA-256 20384d9c6747d3d6…

MALICIOUS

PDF

70.3 KB Created: 2020-11-16 22:52:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9a6d4f7d0dab03c83459c6dcffe78c8f SHA-1: 2beef2b54cd4944b22c796644300121ab99fe018 SHA-256: 20384d9c6747d3d699eb9126e7601fd658da440980bb9a971e697cd282adbd79
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-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://traffset.ru/wb?keyword=rch%20clinical%20guidelines%20conjunctivitis PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cd14064-1b4e-40f1-bb49-8fc3389053ed/everything_everything_movie_google_docs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c39a5616-6c86-4352-881d-73325471b7ec/43848287763.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/buxovid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb5a4e7b-4eba-4887-a765-5fd2a2551e44/pajinopedapimokubomixire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fb5f562-8466-4456-883e-5031640715c1/smart_people_should_build_things.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65e59a91-e6d8-4337-aeaa-40c4e3ce794b/xulunajajevedumedawekoven.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee48700b-07e6-43e0-a50e-393132db5e00/boss_full_movie_watch_online_filmywap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b190a99c-c043-4239-a063-71171fdc2cce/68625834171.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91d18200-daff-4e64-ae18-f8cf22317bdf/23898352214.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/216a4dc0-e7d5-4c20-950f-207f718d3ff9/.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/42755296598.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08b447a1-f531-400e-bb1e-2b6cf7fcb6a4/zadixumajakukorapominipud.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/carpenters_gold_greatest_hits_zip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dc00503-05fb-4dfe-9551-a5e497a57fcd/40997655417.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_off0000d699.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD699 5248 bytes
SHA-256: 5800c555cd3e16ec35fd1c7e81c9c85dd538b94e05633f9eca91606381faf597
font_01_sfnt_off0000e884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE884 10488 bytes
SHA-256: 2d2f65d288a43b370a329f11856705e9dcad8a68ef9123c0effbbcc661d21871

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