Malicious PDF — malware analysis report

Static analysis result for SHA-256 690b20f166e34a15…

MALICIOUS

PDF

118.0 KB Created: 2020-12-27 17:06:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 7ee5e8546a4464be5cd0e62ab631ed80 SHA-1: ece4b8cc52376cd3d18230a8deb3a01afeb63917 SHA-256: 690b20f166e34a1559cfd336d3125796a580719e7cd39e8a4c12d476dbe20a06
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'traffking.ru', which is likely intended to redirect the user to a malicious site. No scripts were extracted, but the presence of the malicious URL and the high ML score indicate a phishing attempt.

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://traffking.ru/strik?utm_term=best+of+2020+so+far PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413007/normal_5f9c6f4cceb43.pdfIn PDF document text
    • https://cdn.sqhk.co/potasuregoz/Zijiji7/primitive_skateboarding_sailor_moon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/53b0aeac-767e-45a1-9635-9cc94cd9d27d/oil_painting_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f12ebe3-81d7-492e-9c17-cbd3548d9d75/benito_juarez_high_school_mexico.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2e8fc18-3696-4c3c-b3ce-4dcc5c5366d0/buwizutagixez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62d1ce86-e2a4-466d-96df-a587676a4836/amazing_ninja_anh_do_series.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70d7bb75-d034-483f-8bca-47b82a680c55/mutants_and_masterminds_3rd_edition_character_sheet_fillable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68dbc35b-ad56-4431-91cd-ba5d15288a75/hatchet_chapter_12_questions_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d0abb68-7813-47dc-ad62-1fbb3fb81b2e/39413494516.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/lokeni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9113eb6c-bd2d-4235-90af-2a389b62499d/scarlett_middle_school_distance_learning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92816521-6512-4a45-8da0-3426f541d24a/janizid.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_off00019181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19181 5052 bytes
SHA-256: 79f9d0ba0fa5b951a529668a2e9d583d18ccd671b7b317d5cff208f3635bae8b
font_01_sfnt_off0001a2bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A2BF 12364 bytes
SHA-256: c0ed0d78c73e772db3f33c5196d080753e7fcb8915c90fcf01f82370c818c5d6

Open this report in the interactive analyzer, or submit your own file for analysis.