Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fbaa8fb96bfdd05…

MALICIOUS

PDF

67.8 KB Created: 2021-02-17 02:10:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 813feb992e2664970cc696fc1fcfade3 SHA-1: 040eabb8109df3f7df111725b8ac3eb6f5c5dcb5 SHA-256: 6fbaa8fb96bfdd05476dcb5166d1a9018ad67202219b4bf6febd95d4d5070f88
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://baarspo.ru/wix?keyword=the+sea+shack+delivery PDF link annotation
    • https://fisadurubimu.weebly.com/uploads/1/3/1/4/131409264/fajokejuxexuwilukina.pdfIn PDF document text
    • https://kazawiluk.weebly.com/uploads/1/3/5/3/135384823/04dc3215e.pdfIn PDF document text
    • https://cdn.sqhk.co/mafowixodi/gAjiiiN/bugajuvepit.pdfIn PDF document text
    • https://cdn.sqhk.co/vegedusovo/bMhcSjd/53630972801.pdfIn PDF document text
    • https://cdn.sqhk.co/tixunudixa/gc7hYKY/spy._io_multiplayer_shooter.pdfIn PDF document text
    • https://vesanawe.weebly.com/uploads/1/3/4/6/134602832/7541473.pdfIn PDF document text
    • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/tarefegot-nudebidulakupa-rifarevurila-polab.pdfIn PDF document text
    • https://cdn.sqhk.co/jerowerar/hdghiWE/92500663175.pdfIn PDF document text
    • https://cdn.sqhk.co/zukasedu/ficifx9/debomix.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/wifiduxezo/22238600132.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/76228001346.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/79572969174.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/website_citation_chicago_manual_of_style.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/lodomi.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/babbel_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/butterfly_life_cycle_vector_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/definition_of_protected_areas.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/forte_abrao_don_juan.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/bejeweled_blitz_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/74827641897.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/94517227890.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/pelifiwexobomegiri.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/walitimezakinemuvek.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_off0000c08a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC08A 4692 bytes
SHA-256: f4ce71573f6f44fff17ef73dd5bf149e898b94369572d7d8901b7adbec2233b5
font_01_sfnt_off0000d089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD089 10432 bytes
SHA-256: fb164a86a1c599d267cd522c13bc55cd95416a57207d7fee75a85f6234db39b4
font_02_sfnt_off0000f3ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FF 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3