Malicious PDF — malware analysis report

Static analysis result for SHA-256 63d5e217c9af4af1…

MALICIOUS

PDF

70.8 KB Created: 2021-03-01 17:40:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: bd8224bbad88f65d0f3af375907738f1 SHA-1: 47624b208f0f1836be9a612e43c6e4a613e948e5 SHA-256: 63d5e217c9af4af1ed58d1d4bbfb268e74b365f3b338e7808b43cd8fd2cc8e27
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://leonvi.ru/wix?keyword=slope+3d+unblocked PDF link annotation
    • http://gratoramaa.website/canadian_citizen_application_formppx8u.pdfIn PDF document text
    • http://wonder-ita.fun/29588831565k184q.pdfIn PDF document text
    • http://svarka-aurora.online/zisanedugedejofukafujuj2casa.pdfIn PDF document text
    • http://reduslim-officialsite.site/colors_tv_serial_3gpxo6u6.pdfIn PDF document text
    • https://cdn.sqhk.co/xuteposidobi/hWnmVhj/79126437399.pdfIn PDF document text
    • http://my-favshopg.online/tuwefy0l0d.pdfIn PDF document text
    • http://fabulouss.space/how_to_change_pin_on_adt_safewatch_pro_3000cm4es.pdfIn PDF document text
    • https://cdn.sqhk.co/manowipete/nPlViaD/smash_cops_heat_mod_apk_ios.pdfIn PDF document text
    • http://my-favshopg.online/decode_duo_codenames_duet_online_localsze0ou.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407306/normal_602a6ba70b466.pdfIn PDF document text
    • http://indonesia2health.online/bundle_class_in_android48434.pdfIn PDF document text
    • http://flowerport.store/best_hd_movies_2019_bollywood8tm9f.pdfIn PDF document text
    • http://varietystore.website/nixifoxutaxezedu86syb.pdfIn PDF document text
    • http://shopyou.online/74759780165dnvdo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469847/normal_5ffd6e7d92895.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000da08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA08 5052 bytes
SHA-256: dc10a193cdd184cec9fe63ba3a40339ae684d2e7cbff9e480c23e6be5c9ededf
font_01_sfnt_off0000eb4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4E 10624 bytes
SHA-256: 37e8c4507c3f066ec1cc41032c5151984b83283a60b4b95534843e8859f0f373