Malicious PDF — malware analysis report

Static analysis result for SHA-256 700551dc050f90e6…

MALICIOUS

PDF

73.2 KB Created: 2021-03-02 13:54:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 11dab8a0f8267183d7c7278479c9ee48 SHA-1: 07014851c38718526b605b4fe49e740d68c8a490 SHA-256: 700551dc050f90e6e8930870298fef1e629a1171a292ce96c11a40c246c991a8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://dugedepap.ru/award?keyword=when+dimple+met+rishi+show PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405639/normal_603ab41fbc4b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465270/normal_603037e6c38ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367007/normal_6010f2a0c721a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477173/normal_600d41cfdc3bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403673/normal_600d3f6d44362.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370280/normal_6013ea7625d6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409840/normal_601cfdd1444b0.pdfIn PDF document text
    • http://nibobokil.66ghz.com/doligoreridebuw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379856/normal_5fe15eaad1a0f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pakebojubo.rf.gd/latest_cryptococcal_meningitis_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/enlace_peptidico_y_como_se_forma.pdfIn PDF document text
    • http://genuziga.epizy.com/33468461180.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/sujuw.pdfIn PDF document text
    • http://gafibis.epizy.com/marksheet_of_class_10_2018_fbise.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/64832067965.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/86681141994.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/update_aadhar_card_by_urn_number.pdfIn PDF document text
    • http://zesivigodexewig.epizy.com/dental_assistant_cover_letter.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/lemedefarulibe.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_off0000e477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE477 5096 bytes
SHA-256: 9d3f889144d60ce8d1119f367ee7c247709d5ef003813ec27ee1ba7eb80117cb
font_01_sfnt_off0000f5b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B5 9936 bytes
SHA-256: 76e99d18eb4d525ad1427b24311d4ac1094dcc58a3846505dba3e52511005d06