Malicious PDF — malware analysis report

Static analysis result for SHA-256 e321d18265249f36…

MALICIOUS

PDF

72.2 KB Created: 2021-03-02 14:19:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2bb66da9e971fab3eb1bca8b49c8701b SHA-1: 68ca0ef3f51fd19eba475149f7e290c533214a8f SHA-256: e321d18265249f36d07c57f5af05a20e2251534059092bfeed28eb8986e5bad6
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://druttle.ru/award?keyword=dream+interpretation+dead+baby+deer PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4411931/normal_600170f5e4296.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/cibidid/83845527886.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472776/normal_60163952393a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372074/normal_601fe49ec07df.pdfIn PDF document text
    • https://lopuxewununoj.weebly.com/uploads/1/3/4/7/134748711/medilarupok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491665/normal_602b5dec01c6f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465255/normal_5ff28ab82fa44.pdfIn PDF document text
    • http://everydayy.fun/lugevaredodikubomipajuvilq17rh.pdfIn PDF document text
    • http://walkover.me/92211389891l80et.pdfIn PDF document text
    • http://giocodigital.space/adding_and_subtracting_polynomials_worksheet_with_workm5jpx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421943/normal_6007a483095a2.pdfIn PDF document text
    • https://cdn.sqhk.co/resozasevej/ejiyphR/swatting_meaning_in_marathi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414695/normal_5fd7fb8661730.pdfIn PDF document text
    • http://extrameets.fun/the_hardest_would_you_rather_quiz_everv3iv6.pdfIn PDF document text
    • https://cdn.sqhk.co/kapapomabu/e4hj0JJ/w3schools_php_mysql_connection.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468274/normal_5fca123734724.pdfIn PDF document text
    • https://cdn.sqhk.co/zanudiwageg/coiggjT/bullet_force_multiplayer_game_download.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/dewazewokib/satezakodalekojapaleri.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/vintage_wedding_invitation_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/change_password_on_outlook_account_on_android.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_off0000e115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE115 5136 bytes
SHA-256: 09cbfeff122a076123519bc24f427dc50c61218b677347b94274463a29fe1c9c
font_01_sfnt_off0000f278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF278 9768 bytes
SHA-256: e4f4c66bafe2658c87579354ae906308400590d8cfb4a7a4273733c7b625e02c

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