Malicious PDF — malware analysis report

Static analysis result for SHA-256 46a6e8e1d463a2cb…

MALICIOUS

PDF

67.8 KB Created: 2021-02-24 23:01:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5aa8656fe0a81c68ae741733e00febd1 SHA-1: 132cc5ffd888765569e14f77edf2dd9f6b39873e SHA-256: 46a6e8e1d463a2cbd4ecc03bc555e8cac7b3afe6c3c2849cd2b0816d34921d36
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/award?keyword=99+names+of+allah+flashcards PDF link annotation
    • https://cdn.sqhk.co/kugorazig/jh3jjhj/19971762191.pdfIn PDF document text
    • http://kino-vezde.ru/vitizoxidonomapeh7weq.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/ughx4Jc/57806987541.pdfIn PDF document text
    • http://naturaleone.space/46397116911k05ai.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475738/normal_5fe32b95b113f.pdfIn PDF document text
    • http://ottics.ru/teologia_sistematica_millard_ericksond28yn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455907/normal_5fc6dd96887b5.pdfIn PDF document text
    • http://digitalmicroteter.xyz/the_madwoman_in_the_attic_infection_in_the_sentence_summaryps3x8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496607/normal_5ff5c73273de9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479224/normal_601980e17a449.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417525/normal_5fecc0a442fe7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383572/normal_5fe260187df28.pdfIn PDF document text
    • https://cdn.sqhk.co/kinubowa/jazhqAE/83383217370.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393028/normal_602cdd1ece7d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408987/normal_5fd9f7edc9eff.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/hBbunPR/cosmopolitan_drink_with_triple_sec.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/fasudikek/jolodefirekodipife.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/arithmetic_reasoning_asvab.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/67657489652.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/39726738605.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_off0000cb46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB46 5320 bytes
SHA-256: 7087e30257178c0d09ec8817a7a6105c1499c112bc5395931ad4fdf1c3623b7c
font_01_sfnt_off0000dd31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD31 10464 bytes
SHA-256: 69d1e99060a1a9f9dde8923d83306769d3dbe624dbfd9313c1cf123fcb599ce5

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