Malicious PDF — malware analysis report

Static analysis result for SHA-256 5beffc3d638384bf…

MALICIOUS

PDF

65.2 KB Created: 2021-02-21 00:42:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6732fdd5aa0de1f1bf2a7910a31f93de SHA-1: 2171f5daaa4e329f4614973691f3be144d913305 SHA-256: 5beffc3d638384bfc0156fc8fdcbaab3744014603e0933a29065c53874d5d288
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://seumenha.ru/wix?keyword=a-affordable+insurance+agency+brockton+ma PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481663/normal_6009fb246c284.pdfIn PDF document text
    • https://cdn.sqhk.co/zanivuwiduvo/iegeyhg/miui_12_launcher_apk_xda.pdfIn PDF document text
    • http://freehookup.xyz/tafadozewixobajinezorexal58qzq.pdfIn PDF document text
    • http://kdghy.online/antivirus_avast_android_apkmwwmw.pdfIn PDF document text
    • https://cdn.sqhk.co/xidupesijij/iaWfiaT/oceanborn_survival_on_raft_uptodown.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414172/normal_5fd8b102e166e.pdfIn PDF document text
    • https://faxojoduso.weebly.com/uploads/1/3/5/3/135351685/rezinigakuba.pdfIn PDF document text
    • https://sodukosikel.weebly.com/uploads/1/3/4/5/134598711/f6a10.pdfIn PDF document text
    • http://ropewelopison.iblogger.org/19389782635.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448110/normal_5ffa40dc762ea.pdfIn PDF document text
    • https://waxizeno.weebly.com/uploads/1/3/0/8/130814339/f107a43b173.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489056/normal_5fee4bfbaef75.pdfIn PDF document text
    • https://cdn.sqhk.co/gozajare/jajaMFE/98622555519.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/nogajutikitig.pdfIn PDF document text
    • http://zerakunutage.epizy.com/13261197471.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/40518721115.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/all_american_trash_brockhampton.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/sefuredodapus.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/kingdom_animalia_book.pdfIn PDF document text
    • http://jufomotapi.epizy.com/sobomijuwewarumejerinod.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_off0000c1e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1E1 5668 bytes
SHA-256: 3fb9c2f1ae2f56661c95608c32f364d8ae01af9766208ec93f12b4343ef1c1e1
font_01_sfnt_off0000d52f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52F 10012 bytes
SHA-256: e79660da19fde7551c2a76ea5a77b810a9f8bcae0422d324d12b747955c47edc