Malicious PDF — malware analysis report

Static analysis result for SHA-256 30ebe3a6b052c7e4…

MALICIOUS

PDF

72.7 KB Created: 2021-01-02 12:09:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: f8028a3b6ed47a81987fc0b0b1664a26 SHA-1: 6c5f72205d7c42b47103d1c1ab8a66fadf88af39 SHA-256: 30ebe3a6b052c7e4bde29c7775ba3a720c490487995b0db489fe64f6bb88a802
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 ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded malicious URL point towards a common phishing lure, likely intended to deliver a second-stage payload.

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://gettraff.ru/aws?utm_term=sujok+acupuncture+points+chart+pdf In PDF document text
    • https://cdn.sqhk.co/wirujurumugi/jaAcmIR/that_s_so_raven_season_2_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/netimawifes/sWTB1jc/love_stickers_for_whatsapp_new_wastickerapps_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375698/normal_5f90fa732d231.pdfIn PDF document text
    • https://cdn.sqhk.co/loxowopiv/GhagcI6/wyze_doorbell_camera.pdfIn PDF document text
    • https://cdn.sqhk.co/xurazegoba/boihjc7/carnivores_dinosaur_hunter_tylosaurus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493282/normal_5fcb785916996.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501777/normal_5fd0c07fc1d4f.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/solonebosop/sister_birthday_pics.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/3026620567.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/iit_kanpur_mba_placement_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/balanced_scorecard_methodology.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/korosagobobovodanilafo.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/99794194381.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_off0000e157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE157 5456 bytes
SHA-256: a8414d889561dad83a076fee32396715b59e2d652e7a6aa0e18f435639d70492
font_01_sfnt_off0000f3e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E6 9992 bytes
SHA-256: ad800f8064e926e83be7be9cfb83582eafeca8244c71c5084dfad9f5b804c988

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