Malicious PDF — malware analysis report

Static analysis result for SHA-256 978cdfded28d4bd1…

MALICIOUS

PDF

79.8 KB Created: 2021-01-25 10:07:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 94c7ae62c8d024d1f5cc92caf6244862 SHA-1: 4fa8845ac6e9b1be69fbb1e0fa317af988167f75 SHA-256: 978cdfded28d4bd19872c7db4a8223c2b5b77ccb37423dc8aeef72321b00152b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=parliamentary+reporter+vacancy+2019 PDF link annotation
    • http://xomapometafa.iblogger.org/play_store_kaise_kare_jio_me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366340/normal_5fce33cdc82ae.pdfIn PDF document text
    • https://cdn.sqhk.co/tazifawixax/LhdRT3P/17507954252.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465025/normal_5fd66a5e370fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417827/normal_5ff11522e6ce2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481518/normal_5fd99f906faf2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xopozajuve.epizy.com/acsm_guidelines_for_cardiovascular_training.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/affine_transformation_parameter_estimation.pdfIn PDF document text
    • http://xewabilema.epizy.com/maxodakava.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/3153026056.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/rarexos.pdfIn PDF document text
    • http://fereralud.epizy.com/nabexalas.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/59759859385.pdfIn PDF document text
    • http://roxutudutupit.epizy.com/rudikadubilura.pdfIn PDF document text
    • https://s3.amazonaws.com/dujepav/pirates_of_caribbean_theme_song_320kbps.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_off0000fac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAC6 5548 bytes
SHA-256: ea154306e30ae18702fce671c7479eace8852707e4b65377047c7351623088b0
font_01_sfnt_off00010d9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D9D 10840 bytes
SHA-256: 7cd036fd1b4fc25b9767e43228ea9c05b0f0722a00f07e6c02ddb0132bb1ea3d