Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f69649bef604d0f…

MALICIOUS

PDF

78.9 KB Created: 2021-01-01 06:08:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: ce03adcc31b7ec32f057a7ceefec791b SHA-1: 2ff68dd092cb7336229495e7d7c4970597ad35d0 SHA-256: 1f69649bef604d0ff57b358538df32001fee25a9c3f3ed475af191f5236e6182
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The embedded URL is designed to trick the user into visiting a malicious site, likely for credential harvesting or further payload delivery. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/strik?utm_term=ikea+playroom+storage+bench In PDF document text
    • https://static.s123-cdn-static.com/uploads/4409096/normal_5feb060fa0805.pdfIn PDF document text
    • https://cdn.sqhk.co/nogedapuvul/jchaqje/park_and_ride_charlotte_airport.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/0a4a7207-014b-4494-a775-5a65a64e8ba5/69203228669.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bb9e936-fe1d-436c-88b1-19e408066c04/sufavemizawigewixo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a98f6827-86ba-4217-9d66-ee6c8848a6ea/60225365568.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaaaf3be-bb07-4e23-b01c-25c255ee0688/83186718921.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/adobe_spark_post_pc_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/carboxylic_acid_formula_name.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf42930f-af1a-42a9-8cd7-e98e053ea052/vezanitorasizurefunex.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/powalotofufeligopas.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/49055306873.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e01f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01F 5592 bytes
SHA-256: 0fdd6ae389272f7b73530f98da3e238faa3ffacbbd2e0e5e02bfa546d1861f5e
font_01_sfnt_off0000f306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF306 11032 bytes
SHA-256: 48493232dd01a4e6fca315a9914be29d3218191731d9e20256a4b35f32c0937a
font_02_sfnt_off0001188c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1188C 16432 bytes
SHA-256: f8f6c335aa2c72fcaa661e5bc44711709560f221b0011901a70903ac243f77c3

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