Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd2bd06e762afffd…

MALICIOUS

PDF

70.9 KB Created: 2021-02-27 21:19:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ba2da1e15cedcbfa73b10bff74ee17ab SHA-1: d84e75adf18b31fec06f21e245777e653b2b05d1 SHA-256: dd2bd06e762afffd7e93d9e7457224720d0e5761cd67776bec9eb9f443ef9227
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=fe+civil+review+manual+lindeburg PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4452865/normal_60260ea28c138.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393020/normal_603a1a112005c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468270/normal_602bf5d79a8aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472206/normal_602364d326ae3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368745/normal_5fdfb1bbbb7c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411500/normal_5fcbc86113a4d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406775/normal_5fc7c558c865a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483867/normal_5ff1b89fb499b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457272/normal_60214db85e37c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414866/normal_600888d11f789.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481684/normal_5fd9a7a76ea92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427821/normal_60014442549c4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jarirotexab/96594690018.pdfIn PDF document text
    • http://faxanudof.epizy.com/koparamigomibijom.pdfIn PDF document text
    • http://satuzolo.epizy.com/kms_activator_office_2013_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/moxinemujozanigip.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/disclaimer_audit_report.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/lelejozexozesodikab.pdfIn PDF document text
    • http://jagofebasej.epizy.com/lightroom_cc_premium_for_android.pdfIn PDF document text
    • http://nexizali.epizy.com/27204422743.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB68 5020 bytes
SHA-256: a293ad7bd1b827a7b6d73aed4337793706a14ceab9fb874f5b6086c40fe575c9
font_01_sfnt_off0000dc5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC5C 10052 bytes
SHA-256: 8ab2451203e02bff78df3776ff9f47bd8cc3cb1f6723ce8d138ad31baf6afa66
font_02_sfnt_off0000feab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEAB 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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