Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7626287410db171…

MALICIOUS

PDF

80.5 KB Created: 2021-02-12 04:44:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 714908fb052b9b5a6219301dc8431648 SHA-1: dbc8b6cc67e928f8eaa0d1ae0e5a2de5f6ed2aa8 SHA-256: f7626287410db171e781c6bdd282593059165c89669b31b47f1412cacf10d69e
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://baarspo.ru/wb?keyword=cinema%20apk%20new%20version PDF link annotation
    • http://zerudomafiko.iblogger.org/bilinear_transformation_example.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410416/normal_602147e731e17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487186/normal_6021c02fdfc25.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424025/normal_5fee258f5d853.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417535/normal_5fe4a542846c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452608/normal_5ff8712244720.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482617/normal_5feec59b34b6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377100/normal_5fdc2a13001ab.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/pafiganovavi/71097760156.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/tikagagusovuzirolivu.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/zodijaxul.pdfIn PDF document text
    • http://kenefokugoxetu.rf.gd/mepesutorapoxelekunud.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/delhi_metro_map_2019.pdfIn PDF document text
    • http://jegowijuvu.epizy.com/marodos.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/5523244758.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_off0000fde6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDE6 5052 bytes
SHA-256: 6b00cd34768b3af77be05aac2ed275e335d1c6308273918f1255612190da13ec
font_01_sfnt_off00010f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F13 11288 bytes
SHA-256: f379af93c750596b161cfd482242e2ec3e1a2baa42d49a21d41564c6170997a1