Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d8a1345f7c8f6ec…

MALICIOUS

PDF

72.4 KB Created: 2021-02-21 11:20:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 12e9da186566154e8caa601b36269bff SHA-1: e2893718e5b6cefc56cff8a8c72c4261fa27258a SHA-256: 1d8a1345f7c8f6eca2e03eb044c2b367f5dc4afecdab7c9fe91450f65d61b3ab
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=download+pdf+fifty+shades+of+grey+bahasa+indonesia PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4484114/normal_6005b5459f79c.pdfIn PDF document text
    • http://itravelimpressions.com/28081829975x4lid.pdfIn PDF document text
    • https://cdn.sqhk.co/mafozerekat/ijaijjd/gun_club_armory_1._2._7_apk_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416653/normal_600d6dd030153.pdfIn PDF document text
    • https://cdn.sqhk.co/gagobuniponi/ihegcrh/etude_house_aloe_face_mask_review.pdfIn PDF document text
    • https://cdn.sqhk.co/nuwuzasemifo/Pge2cid/47178447762.pdfIn PDF document text
    • https://cdn.sqhk.co/nawafoxobok/hIihFji/lulezavopamuzejun.pdfIn PDF document text
    • https://cdn.sqhk.co/wanadujogo/UicAWji/online_store_website_design_south_africa.pdfIn PDF document text
    • https://cdn.sqhk.co/wudawagirus/BFIujg4/pro_series_drag_racing_cheats_ios.pdfIn PDF document text
    • http://small-italy.space/nfl_schedule_week_4uu5vc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416154/normal_600bb913a9d1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392656/normal_5fd9f4eb3562f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449187/normal_600900ddbe793.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381082/normal_60175ce00e603.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/hgheWhc/tower_of_london_boxing_day.pdfIn PDF document text
    • http://shopsmmv.site/practical_file_index_pagec4x5t.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380867/normal_602e648a0beac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fogabifotu.rf.gd/game_pc_ringan_tanpa_emulator.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_off0000dc25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC25 5636 bytes
SHA-256: 1dedbfcb490625bf5f6454823e968afba2734c04b49788106c1122ec61e4846d
font_01_sfnt_off0000ef69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF69 10732 bytes
SHA-256: dcc58088c9a9c531a652e6a7d959508aa247cec789c20590b231a5cbfad512be