Malicious PDF — malware analysis report

Static analysis result for SHA-256 071971a2ffe6489c…

MALICIOUS

PDF

68.7 KB Created: 2021-02-27 17:53:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 91fcbd5ae543c25b474c9d26cd91920a SHA-1: ff322a7ed3031d305b0845b116f80d3ba54c8bbf SHA-256: 071971a2ffe6489c6882d10af6dd58d18f56f98a0b5e69c54320383153640632
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://jumiwimov.ru/award?keyword=how+to+replace+battery+in+apc+ups PDF link annotation
    • https://cdn.sqhk.co/vadetegubufo/fhdiilV/dio_magica_album_lyrics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418746/normal_5fca375540073.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455185/normal_600cb5e3e92c2.pdfIn PDF document text
    • https://cdn.sqhk.co/xenumobavun/etDMQqj/parent_plus_app_store.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469365/normal_602995581b186.pdfIn PDF document text
    • https://cdn.sqhk.co/vimerokil/hipIgje/the_sims_freeplay_ios_hack_cydia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467036/normal_6029825ff0b36.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368982/normal_60076ebcb673c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403954/normal_602780d869a4a.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/bjdjer7/word_swipe_pic_app_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450160/normal_5ffc51b33141a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nivuzujanux.myartsonline.com/what_are_the_disadvantages_of_new_technology.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/bein_sports_tv_live_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/mathworksheets4kids_multiplication_word_problems.pdfIn PDF document text
    • http://tebaputazaxuva.myartsonline.com/how_much_does_real_estate_license_cost_in_florida.pdfIn PDF document text
    • http://gewagopixinilu.rf.gd/69012127989.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/56676065878.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_off0000ce91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE91 5220 bytes
SHA-256: 4bc9decf4059871f996b819271cb389532b0ca5f054cfe31a9f0cef4dec7eca3
font_01_sfnt_off0000e070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE070 10436 bytes
SHA-256: 0a2e006b7a59a939a226a9d4e11086ba31e6e65ddae4ca87923ec29fb2c429ff