Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed1e291b9ee8c5c0…

MALICIOUS

PDF

71.5 KB Created: 2021-01-24 19:46:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4fbd34ef8f38dfa3824987ef59d62118 SHA-1: 1ac7d41646e806c39185ec2b1f7b2766fc289097 SHA-256: ed1e291b9ee8c5c0a8a555232943887ef3a10435c149f12933ee8aa33dbd37f4
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/aws?utm_term=mcd+self+assessment+property+tax+form PDF link annotation
    • http://umdtheatre.ru/square_body_chevy_truckclgu9.pdfIn PDF document text
    • http://bopepon.22web.org/56491607207.pdfIn PDF document text
    • http://ijmalan.xyz/vexation_synonyms_antonymsg7hk1.pdfIn PDF document text
    • http://kihepc.xyz/virtual_dj_mixing_software_for_pc3yzgc.pdfIn PDF document text
    • http://microdigitalmeter.xyz/28671320055h1k0u.pdfIn PDF document text
    • https://cdn.sqhk.co/jekurona/jiPQdc1/making_homemade_ice_cream_sandwiches.pdfIn PDF document text
    • http://drovazvenigorod.ru/gospel_music_praise_and_worship_songs_2019vc3ix.pdfIn PDF document text
    • http://kejamezegujoz.iblogger.org/pinazidoraxexonal.pdfIn PDF document text
    • https://cdn.sqhk.co/vozevadijut/9U7HGgf/vuwirudixuwirat.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/nagev/thule_swing_away_bike_rack_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/business_plan_example_for_students.pdfIn PDF document text
    • http://zugoxovok.epizy.com/aishen_qiaokeli-_ing._2nd_season.pdfIn PDF document text
    • https://s3.amazonaws.com/jidagafinuxesu/tejanumosanititunapaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/bladestorm_nightmare_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/vidalia_bridge_bundle.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_off0000d82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD82D 5476 bytes
SHA-256: ecb0a20cb2cec48de9222c5c42ec439f7eb5896055e70274dc981b4b2e84f0f3
font_01_sfnt_off0000ead4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD4 11420 bytes
SHA-256: 23e6852e956d7720e02cb2451f11499c2da4069bb8d2c2f9112824c1f22fce00