Malicious PDF — malware analysis report

Static analysis result for SHA-256 056fa7ce5e771ca2…

MALICIOUS

PDF

69.3 KB Created: 2021-02-17 23:16:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6166303675265737cbb9408827a0d6a1 SHA-1: 7b925ec3e8dc59736e43741db3d48f8e686d62ff SHA-256: 056fa7ce5e771ca2735614de6d6dda12ad53955f56a5b468a8d3d9207fe3fe88
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/wix?keyword=shared+knowledge+winchester+va PDF link annotation
    • https://cdn.sqhk.co/xubupigegi/jePjfJQ/free_wifi_at_home_2020.pdfIn PDF document text
    • https://fodivavix.weebly.com/uploads/1/3/1/4/131483454/vumalaguzu.pdfIn PDF document text
    • https://wefakibulebu.weebly.com/uploads/1/3/1/4/131408371/2636421.pdfIn PDF document text
    • https://cdn.sqhk.co/feletitami/cgfCgcO/48505300181.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwoxebu/c0nguE0/special_agent_oso.pdfIn PDF document text
    • https://boxotajisosuni.weebly.com/uploads/1/3/6/0/136086252/7464356.pdfIn PDF document text
    • https://cdn.sqhk.co/faxixuwako/hjWp3d0/kilexaveminawutupobute.pdfIn PDF document text
    • http://velavedi.iblogger.org/brindisi_traviata_sheet_music.pdfIn PDF document text
    • https://puzomukasudugun.weebly.com/uploads/1/3/4/8/134865935/5259306.pdfIn PDF document text
    • https://cdn.sqhk.co/bedazume/pV9ijCj/brawl_stars_wallpaper_2020_hd.pdfIn PDF document text
    • https://diruwogedow.weebly.com/uploads/1/3/1/3/131382439/7fbb40c.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarimeg/5vJlhaJ/vsco_bubble_letters_copy_and_paste.pdfIn PDF document text
    • https://dipedupaketi.weebly.com/uploads/1/3/4/3/134333799/zaduzokomuvekesewe.pdfIn PDF document text
    • https://bigififipajug.weebly.com/uploads/1/3/4/7/134709095/f12ca5e8.pdfIn PDF document text
    • https://cdn.sqhk.co/gijesali/hhi5jhz/escape_game_50_rooms_1_level_46.pdfIn PDF document text
    • https://cdn.sqhk.co/zejegure/hfibgfH/60972916343.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://voniziveput.rf.gd/must_have_v3_worksheet.pdfIn PDF document text
    • http://komadolosa.rf.gd/tekinesidijaxosasa.pdfIn PDF document text
    • http://nekepozime.epizy.com/cambridge_english_placement_test.pdfIn PDF document text
    • http://tukutuxobolekub.epizy.com/frozen_movie_in_tamilyogi.pdfIn PDF document text
    • http://pedefulavok.rf.gd/mofesibuwidunan.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_off0000d25f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD25F 5520 bytes
SHA-256: 8bdae4c199a8d829bd7305c6304f81c409a6254455119009a9933a6b97dc922b
font_01_sfnt_off0000e537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE537 9984 bytes
SHA-256: aed49e14218891d7a07b3ca0c9d98a5beb9659917e70e07f691635b327edf841

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