Malicious PDF — malware analysis report

Static analysis result for SHA-256 83ee03a50d53c8d8…

MALICIOUS

PDF

80.5 KB Created: 2020-11-19 19:08:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7467e1d56e83e7e556948c128f46aa8f SHA-1: 5a66f0d72290ffcf93adc63f1f7f62e558e76ec4 SHA-256: 83ee03a50d53c8d86745bdcf3cafcd5458fff1932b1c7bc5ec1bd87e79421eae
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=air+man+mega+man PDF link annotation
    • https://bizitodavil.weebly.com/uploads/1/3/4/3/134321392/5947260.pdfIn PDF document text
    • https://kuguzozivef.weebly.com/uploads/1/3/0/7/130739994/pubamopuxelo_lomazuj_mexoliworigut.pdfIn PDF document text
    • https://fomodaduvi.weebly.com/uploads/1/3/4/7/134700625/votuti.pdfIn PDF document text
    • https://nutolifawivu.weebly.com/uploads/1/3/1/4/131437776/398e6a.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/mibiwivanetuj/finirinupuposevenosum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cec478ed-17af-4eb5-87f6-5dfa2583cf95/39454830323.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/black_platform_heels_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8db02a2b-88dc-49c0-befd-967cf0cbc517/centripetal_force_required_for_a_car.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/12544895946.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/kegipepulidutid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccb0c532-6551-450a-be65-8274752158bc/15678370654.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88cc1d9e-4da4-4859-abfa-9dec37731c13/messenger_apk_apk_pure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f4053af-953c-4c24-b1b6-b715229c9e88/78693233463.pdfIn PDF document text
    • https://s3.amazonaws.com/xanofamaja/pirates_of_corellia_empires_and_puzzles.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE23 15704 bytes
SHA-256: 470b3c4d96b95af435a878b9660062b74aca5a569f43e5385ad4541aa69750a8
font_01_sfnt_off0001001f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1001F 4784 bytes
SHA-256: 2de9d872ed0c4389412106259ef1a9cc6880d20700ff7dfc67b9a4b478a51ec6
font_02_sfnt_off0001104d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1104D 10984 bytes
SHA-256: 8e5781c5355d920cb6f5ea9b375321e18bc05cb2bf03bc6e5ff2e9fad2374742

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