Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ee1922379a130a…

MALICIOUS

PDF

71.8 KB Created: 2021-01-08 18:56:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 8d7839fd0d34fbcba8318cca7aa1557c SHA-1: 598ec2d4da10dfed0383e981299a0488e44e04da SHA-256: d6ee1922379a130a1fb551875e8fe97d4188e54a369a9fb0ec795899edf9bbce
154 Risk Score

Malware Insights

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

The file is a PDF containing a link to a known malicious redirector, traffmen.ru. This suggests a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were extracted, the presence of a malicious URL is a high-priority indicator.

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://traffmen.ru/123?utm_term=black+gold+sights+setup In PDF document text
    • https://cdn.sqhk.co/pusobatosip/ntZieA5/photo_editing_software_download_apple.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370052/normal_5fea3003627ca.pdfIn PDF document text
    • https://cdn.sqhk.co/tevotapomow/cMZjaPx/74552756796.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/gcjfoii/retro_cruiser_bike_accessories.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/litunux/adobe_illustrator_templates_free_s.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezodepugov/big_data_management_technologies_and_applications.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93a4a3e6-ff4a-49bf-9c1a-9f0ee8af0ecb/fuseguvamavikugisa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ede9e13-ae69-461a-afa2-7f932e4949e2/konewenawarutafu.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/bovivosafevalot.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/15040488291.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/vezobozetolepiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d44d5d2-b4c8-45b4-8e86-869df7da2baa/34897642545.pdfIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/bhad_bhabie_songs_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ad8b480-1d8d-4948-8fe3-2bf6ccf62423/75274158505.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/dolphins_vs_jaguars_odds.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_off0000dd28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD28 5352 bytes
SHA-256: 419ea71d6e14b83c57d399f48ff8d6e0268a57ca09530d6577aaa82df32944cd
font_01_sfnt_off0000ef5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5F 10720 bytes
SHA-256: 43132596969c2ccebeb52f8d717855290fcf9bc81b7242ce2f6d25aa266b8f27

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