Malicious PDF — malware analysis report

Static analysis result for SHA-256 09a76e90473247b5…

MALICIOUS

PDF

67.9 KB Created: 2021-02-11 06:16:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9ade675671b0829d43ed99e3b006acdd SHA-1: c1040449ffff32fe4f65a0501ae505b9c499e674 SHA-256: 09a76e90473247b59f1aa8bb774861559be524264ed6bbfe8f6e19a9044213ac
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/aws?utm_term=allen+bradley+micrologix+1400+manual+pdf PDF link annotation
    • http://madamzero.com/fancy_pants_man_3_unblockedzzy0s.pdfIn PDF document text
    • http://phulop.store/23449372833r418u.pdfIn PDF document text
    • http://tomogorman.com/pusosekadipadagajuwuz3djtr.pdfIn PDF document text
    • http://devlp.club/new_years_eve_mystic_ctpd1yn.pdfIn PDF document text
    • http://gutprod.xyz/nevuzavuzasamutejamoxg6vb.pdfIn PDF document text
    • http://ryursew.space/notudewodivweh.pdfIn PDF document text
    • http://naturebiolog.fun/dazijopobadumawegekorizefjzf9e.pdfIn PDF document text
    • http://martakkord.ru/adding_and_subtracting_fractions_mixed_numbersxr6wb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420934/normal_5fd880abe2225.pdfIn PDF document text
    • http://firstdoctor.xyz/316095932647bh5x.pdfIn PDF document text
    • http://acupofjacob.com/61082644743ylh0o.pdfIn PDF document text
    • http://kernig.pro/english_spelling_test7btep.pdfIn PDF document text
    • http://ecoservice-vlad.ru/business_ethics_now_ghillyer3enjq.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/simujix/pisepiwamesexav.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/lelepisiludaviroripoku.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_off0000cccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCCC 5876 bytes
SHA-256: dea9301afbe6d7b5375c613bb04e22b2a2395ddf7acd733fd8d6dc4f730a4a37
font_01_sfnt_off0000e0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D1 9844 bytes
SHA-256: 9dcf0080a2a517ff9f40a2e810e7507c315fef336ebd3322fd0171bc26e2f03e