Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaba64924f2d332e…

MALICIOUS

PDF

76.5 KB Created: 2020-11-19 13:50:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: c70586c74037e4b2f5c2af7830798f8d SHA-1: 111538e93828061a20daae461c136d4a78fd9083 SHA-256: eaba64924f2d332e6a4ba4bbd2faf245d9cdfc12930cc7b39c3028b891778094
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://trafficel.ru/123?utm_term=jasmine+acoustic+guitar+strings PDF link annotation
    • https://xasigali.weebly.com/uploads/1/3/4/3/134363336/fiwamurixu-rurukowiteto-soxaxerakik-rofaposizuw.pdfIn PDF document text
    • https://jalewigevat.weebly.com/uploads/1/3/2/6/132681207/e2f149db17f3.pdfIn PDF document text
    • https://bafafodalub.weebly.com/uploads/1/3/4/3/134367540/gukilaju_lelurawi_deralimasot.pdfIn PDF document text
    • https://doxeduzawixufak.weebly.com/uploads/1/3/4/3/134383044/titisebaboziv.pdfIn PDF document text
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/6466201.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/54ee2dbdfc4.pdfIn PDF document text
    • https://zelapagetuwuj.weebly.com/uploads/1/3/1/4/131406140/c7342f960c3317b.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/xamibudasagas/18388452695.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/kiss_the_donkey_navy.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/28674080126.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/protect_the_nuts.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/terminator_2_judgement_day_english_subtitles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9794ec1-3729-4143-ae49-3680359bee1f/tesekupebaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/855e2bb4-a6b2-45f1-8b4e-8d0a2136f9c9/tusotolor.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/bestiario_2_pathfinder.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_off0000eec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC8 5076 bytes
SHA-256: 377397a8a73d4a35001c806b20270c033428aa459a39f1d73767a4245a96a3d5
font_01_sfnt_off0000fff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF5 10972 bytes
SHA-256: e753b1976ef4dddf079e5eaf78f04cac4a92db5c533752ca4e51856b4b75661e

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