Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb8f7f6df1553589…

MALICIOUS

PDF

73.0 KB Created: 2021-02-17 23:13:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ef89e2d7d6ba562edd18cb33d07db188 SHA-1: ef8942a32dca35bb97ec24e8f1c884d0c921d935 SHA-256: bb8f7f6df1553589524bb299e1640154e04cf8e766896a8623c7c8fb8df36de9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wix?keyword=maine+coon+kittens+for+sale+texas PDF link annotation
    • https://cdn.sqhk.co/gejupajo/hcij4Dq/panini_fifa_365_adrenalyn_xl_2020_checklist.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391903/normal_6014f21e1efd9.pdfIn PDF document text
    • http://e-devletodeme.net/woxubisalogewetidokrey9h.pdfIn PDF document text
    • http://tryse.xyz/20997663866fqac0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371799/normal_60041c12af37c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411935/normal_5ff2f1c56c0cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452374/normal_6026d97c405e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475559/normal_6020af6ae991e.pdfIn PDF document text
    • https://cdn.sqhk.co/bigulikexupa/ai04Qjg/rotimadudowolot.pdfIn PDF document text
    • http://opt05.ru/how_to_access_my_hitron_routerb75bo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420260/normal_60055f15dd82d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369161/normal_60036c8bc56a2.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/BQjacU4/tovutawuregiture.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/bulozor/70756526846.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/65342146717.pdfIn PDF document text
    • https://s3.amazonaws.com/vefagotoje/management_leadership_styles.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/zlib1._dll_windows_7_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/budux.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/crossfit_programming_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/golden_lotus_rep_guide.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_off0000d4ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AB 4800 bytes
SHA-256: 3b0a73b2baad8b1ae74131959fc79a3b214e328ae24a0a6dd5293a6392a44e62
font_01_sfnt_off0000e502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE502 10396 bytes
SHA-256: 44c3b57e02b5c09803935d84541ab0462dc16dbbd88c834b7d9f81ac16762954
font_02_sfnt_off00010895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10895 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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