Malicious PDF — malware analysis report

Static analysis result for SHA-256 189c5fca162ebe77…

MALICIOUS

PDF

75.0 KB Created: 2021-03-01 19:23:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 947cd9f70bf679b2f0e6a3cd42e55b1f SHA-1: 5371602762c5f860c71c4c6d10132e168597d969 SHA-256: 189c5fca162ebe776af988bff66934c9b32b82130167015cd9107516917ccbe0
136 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
  • 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://golowaki.ru/wix?keyword=accident+report+form+template PDF link annotation
    • http://copyrighytsupport.com/famupepevqo7zh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446030/normal_6034fb85544fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477649/normal_5fc9e67de1eb7.pdfIn PDF document text
    • http://steh-sistem.ru/why_isnt_my_dyson_v10_workingwh8f4.pdfIn PDF document text
    • http://daimontimur.org/45036997005dl4ll.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421970/normal_5fed4e68ae2c8.pdfIn PDF document text
    • http://1cats.space/zunasileravekikoweviki7jzh.pdfIn PDF document text
    • https://cdn.sqhk.co/kigimijexap/ibhagc6/the_tribez_and_castlez_mod_apk_revdl.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/pulavokaxe/criminal_record_check_consent_form_bc.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/198639577.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/3041623883.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/59215205120.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/23602197292.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/mutidamawowes.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/vusabobijuzel.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_off0000ea98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA98 5112 bytes
SHA-256: 6e881d3d8741daf355b46fd656455fcdd48efab4cbedad14aa16716211a21e33
font_01_sfnt_off0000fbe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE8 10332 bytes
SHA-256: e4f5fc6206f19360786dc9d329e3ac814573efa688cddb6e3fa486d045f06fbe