Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a52192783a14c6d…

MALICIOUS

PDF

66.7 KB Created: 2021-02-13 06:46:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e883d7bdbc94fc8c8c1e337e64d65413 SHA-1: b1f4e3f5aff8e0507d5e15d287098ef7c64a5ec9 SHA-256: 5a52192783a14c6d11cfb14d9b319ef14e00e5159d6bd52881b513bde0e412f9
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://seumenha.ru/wb?keyword=letter%20size%20self%20laminating%20sheets PDF link annotation
    • http://womukob.iblogger.org/tilajebebu.pdfIn PDF document text
    • http://zaxunux.iblogger.org/poster_templates_for_events.pdfIn PDF document text
    • http://qwonder.space/vojetelo92qxd.pdfIn PDF document text
    • http://uspehdnyaaxyz.xyz/34609828763dwf3r.pdfIn PDF document text
    • http://autobaff.xyz/mozekoxelovunizex9200.pdfIn PDF document text
    • http://stal-kemerovo.ru/pression_osmotique_exercicewwx78.pdfIn PDF document text
    • http://mybestchan.online/idle_clicker_business_farming_game5kn7h.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/zafibimutadoti/it_chapter_2_final_trailer_music.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/39752831638.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/97991153084.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/88163168250.pdfIn PDF document text
    • http://xesovukefezusag.rf.gd/after_parents_guide.pdfIn PDF document text
    • http://juvixote.rf.gd/movies_online_free_openload.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/90636763572.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/angry_birds_go_pc_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/vozafe.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/mevagitulu.pdfIn PDF document text
    • http://pivutabomenatam.rf.gd/lixubodebakemarujatuwowix.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_off0000c7fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7FE 5172 bytes
SHA-256: de5f6d2a230c163a81aa47791753ebc06db290dc077d32077609e588f06a2de2
font_01_sfnt_off0000d975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD975 10792 bytes
SHA-256: 233bff0dd6f216607ba04f675ed0ff7cdba7e63f0d0d3f44846d9626e5dcf9dd