Malicious PDF — malware analysis report

Static analysis result for SHA-256 e972a678f659cbdc…

MALICIOUS

PDF

63.0 KB Created: 2021-01-06 06:39:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 5f529fa93ec0146da318a754eac7f22e SHA-1: 7b46087e87c5ab1368e9d6cec46efd2940d37985 SHA-256: e972a678f659cbdcd4d2e57f828ac0a61fc53b03267bd5078a4f3aaead06e73e
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/123?utm_term=jfk+canton+ma'. This URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

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
  • 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/123?utm_term=jfk+canton+ma In PDF document text
    • https://rukutatonaneto.weebly.com/uploads/1/3/4/0/134012616/jinixuzasigewa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487007/normal_5fb8f2e3887b4.pdfIn PDF document text
    • https://pabametutib.weebly.com/uploads/1/3/5/3/135317572/8b05b10012d42d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376609/normal_5fa6e76fab5ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492875/normal_5fc0a4a5d5dfa.pdfIn PDF document text
    • https://xipunozelizu.weebly.com/uploads/1/3/1/3/131382486/nizukurajazido.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/6a89fb5c-4f00-439a-a2d6-a444bd341921/stihl_2_in_1_filing_guide_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/692a7b11-ce3e-420d-866a-b687545bb9e2/niwadire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b692ec53-a2d2-45d2-b0fc-99403b0d1102/muvunomevolirov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d59bf18-b35d-4a62-aa7b-1e45b414a556/33181230765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b97696d-b6a4-4d53-bebd-24e12cbafe9c/banyan_elementary_school_california.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_off0000bbf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF4 4772 bytes
SHA-256: 8f999028e7b804a8e0dbb7eab7056799f3c746dad8167a77d91853ef5c46db6e
font_01_sfnt_off0000cc2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC2F 10532 bytes
SHA-256: 5cf080d35fccdc890a48de6ddf80e1528614d997a26ca403d9f3468489b76e46