Malicious PDF — malware analysis report

Static analysis result for SHA-256 922ce006511811d0…

MALICIOUS

PDF

71.6 KB Created: 2021-02-28 01:23:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9a45cda5924fe8427fafc687b0fdd127 SHA-1: 9ea776a1e217b036d93167617b9208943f4d5b17 SHA-256: 922ce006511811d007f6402c045a32a225b240435496cfc093c3337733f6a775
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/award?keyword=how+long+to+truly+love+someone PDF link annotation
    • https://cdn.sqhk.co/kenoramof/geghxja/40085670215.pdfIn PDF document text
    • https://cdn.sqhk.co/bidusowo/jeOZic8/munagexokojinuzovim.pdfIn PDF document text
    • http://show-visitor.xyz/rubajutamixibinojaboz1je2j.pdfIn PDF document text
    • https://xakowuval.weebly.com/uploads/1/3/5/3/135316831/560bf.pdfIn PDF document text
    • http://calipshatngaccs1.xyz/social_media_marketing_for_beginners_bookt377g.pdfIn PDF document text
    • https://cdn.sqhk.co/tarekekog/hjgggig/monster_truck_coloring_pages_for_toddlers.pdfIn PDF document text
    • http://prizinsta.info/livongo_app_downloadvxt0z.pdfIn PDF document text
    • http://bbbbbbbbeeee.space/resumem_dela_biografia_de_pierre_de2tkln.pdfIn PDF document text
    • https://ginufadep.weebly.com/uploads/1/3/4/6/134668932/4592382.pdfIn PDF document text
    • https://gixinizolovuz.weebly.com/uploads/1/3/5/3/135348456/vaxinev-daniz-jakifalepibe.pdfIn PDF document text
    • https://cdn.sqhk.co/xunijejozi/nTMiehf/homeless_life_expectancy_uk.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/sebunuzu/60359672903.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/zopoxixusesexutunemazu.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/36271431731.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/patifamema.pdfIn PDF document text
    • http://zesafemumibow.myartsonline.com/solid_state_physics_ashcroft.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_off0000dcd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD9 5012 bytes
SHA-256: 03662d1da77861c127e9ffbda2bfb637eb46882eeb3e0794ff4db7e907cd14f6
font_01_sfnt_off0000edf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF1 10396 bytes
SHA-256: 37fbc06537ac46923331c98554179c481883aab45f76962995f95b2a583bfecd