Malicious PDF — malware analysis report

Static analysis result for SHA-256 05c147e990e04f3f…

MALICIOUS

PDF

68.2 KB Created: 2020-12-21 16:16:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 85948039936dc0a5e5a288978e804b21 SHA-1: 2bf174b2b2018e2bce9d377615f13ad7a60120a1 SHA-256: 05c147e990e04f3ff588b0766976bd69e79cd39d54253a6b697ab09402c6fefd
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://traffking.ru/123?utm_term=john+sarno+mindbody+prescription+pdf'. This indicates the document's primary purpose is to redirect users to a potentially malicious site. The ML classifier and ClamAV detection further support its malicious nature, classifying it as a phishing trojan.

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://traffking.ru/123?utm_term=john+sarno+mindbody+prescription+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380859/normal_5fb50101d0445.pdfIn PDF document text
    • https://weniwekozeg.weebly.com/uploads/1/3/4/0/134012595/wilomamorodiborumivo.pdfIn PDF document text
    • https://gefeteki.weebly.com/uploads/1/3/4/3/134310298/jegawisukuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373304/normal_5f88bc142aae2.pdfIn PDF document text
    • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/mimujesavij-rakada.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379720/normal_5fcd02f36a372.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/falevi/gift_card_vector_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/veramerobaxoga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a133bb14-0fd7-467d-81f1-4aa0436d652c/24365439251.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d91541e-316b-473b-a995-4bc98bbed398/xonivinesiwigamow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82322b42-d4ff-48b6-89bf-4a806a79a585/league_of_legends_lucian_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/vejupajaxuravuligogos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/964d3e9a-3d10-4bca-bfdf-8b004117dfbc/63701979635.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_off0000cd18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD18 5592 bytes
SHA-256: 7586459c2c44755be006c4737404a70ec391dfa700046f5b00561e42fa75eb7b
font_01_sfnt_off0000dff2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF2 10908 bytes
SHA-256: 8101412da3d77302486f663710c9e3293a110aa66247e6a3b2891ccb8bcd9be7

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