Malicious PDF — malware analysis report

Static analysis result for SHA-256 0632c06d62d07e41…

MALICIOUS

PDF

68.4 KB Created: 2021-02-08 00:54:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fdc84d4888a79b17e3219d9202bcebe6 SHA-1: c03a9534db4014e4a2a13083678315a62c1f93ca SHA-256: 0632c06d62d07e41b576c664f3f7b8db1a56e2fc3e99ddacd0c3a4be87039a5d
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wb?keyword=make%20my%20own%20traceable%20worksheets PDF link annotation
    • https://cdn.sqhk.co/xurazegoba/QNtibhf/neha_kakkar_song_ring_djpunjab.pdfIn PDF document text
    • https://cdn.sqhk.co/bomemenun/ZR1mxhh/98992685536.pdfIn PDF document text
    • https://marejipafikelor.weebly.com/uploads/1/3/1/4/131437604/zufusaruwawanikid.pdfIn PDF document text
    • https://lasuzolus.weebly.com/uploads/1/3/5/3/135315371/5738958.pdfIn PDF document text
    • https://cdn.sqhk.co/patagarinixa/g48vhhi/19074863233.pdfIn PDF document text
    • http://discount50it.pro/defense_zone_original_mod_apkdt621.pdfIn PDF document text
    • http://mabapip.22web.org/62987612914.pdfIn PDF document text
    • https://cdn.sqhk.co/tizalenifo/siczif0/oneplus_launcher_beta_apkmirror.pdfIn PDF document text
    • http://quinzsy-studio.design/pijekagosung1vzy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475376/normal_5ff88d15acdc6.pdfIn PDF document text
    • http://tamakar.tech/56852480402w6x0l.pdfIn PDF document text
    • http://mignonette.space/neon_snake_print_bikini9hlny.pdfIn PDF document text
    • https://cdn.sqhk.co/jerivudofin/g7BXFJB/sonic_the_hedgehog_2_movie_trailer.pdfIn PDF document text
    • http://fanogizakelime.iblogger.org/kakojawepoju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://debumiputun.rf.gd/18717687518.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_off0000cde3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDE3 5440 bytes
SHA-256: 61cd6da0419daf2be3c022964202ef125c6bd23fac9d35f520482aac36d9d86a
font_01_sfnt_off0000e05d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE05D 10712 bytes
SHA-256: f6af5780c6ca84c40af63293c6bdbce8d01f8d63a1a503550bfdeae1f60d547d