Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ddc7c2ebc5eda5c…

MALICIOUS

PDF

70.9 KB Created: 2021-02-16 04:53:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d31d9ae6fcacf6199b46082eb37c4d07 SHA-1: 79a5cedd9dc4cedacc2d6d0f6e9d3e5177c5e1c3 SHA-256: 6ddc7c2ebc5eda5ce06e036e2673a818a903013fbc77b79e6411560b4339624e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/123?utm_term=how+do+i+change+the+browser+on+my+lg+tv PDF link annotation
    • https://dibovasejul.weebly.com/uploads/1/3/1/0/131070518/fomotidudonuzeze.pdfIn PDF document text
    • http://gladkoe-telo.xyz/bupedafimezosb9ig.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/ijjaiid/58613930549.pdfIn PDF document text
    • https://cdn.sqhk.co/kowipopi/giSFVie/16252954169.pdfIn PDF document text
    • https://cdn.sqhk.co/zujumatatub/4ggSifr/vunibusirosi.pdfIn PDF document text
    • https://musisemikalig.weebly.com/uploads/1/3/4/6/134694348/2373781.pdfIn PDF document text
    • https://josapepukixo.weebly.com/uploads/1/3/1/3/131384602/nixebipanibadajop.pdfIn PDF document text
    • http://nicepics.xyz/determining_dependent_and_independent_events_worksheet_answerslpidt.pdfIn PDF document text
    • https://retibome.weebly.com/uploads/1/3/4/6/134680472/timip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419003/normal_600207c125a4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465145/normal_5ffde6dcac10a.pdfIn PDF document text
    • https://misamizejip.weebly.com/uploads/1/3/4/3/134348089/c40e62646.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/miledu/deed_of_absolute_sale_template.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/kuruxikewijeboka.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/green_screen_background_images_free.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_off0000d87a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD87A 5708 bytes
SHA-256: 208447a6b9bb9f029058f2308419c0ad60cbc51dccaaf9f11038fd1e6fc8e32c
font_01_sfnt_off0000ebd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD2 10108 bytes
SHA-256: 3e28b2c104cfd6ec040a453432b4ed323edd17a5270364e23ffce6d8e805c158