Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfa828120526a18a…

MALICIOUS

PDF

70.3 KB Created: 2021-02-08 17:31:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 32bc8df1a3cc2a7c8d9525a72344ffe7 SHA-1: 657a69d4d974aed43e88f0f14e6b6bbb04b712c3 SHA-256: bfa828120526a18adb255db53b73c2a3886f60c1df7b7d3ba5f3a1d3e764f933
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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/aws?utm_term=guided+math+in+action PDF link annotation
    • http://kabonuwumew.66ghz.com/wondershare_mobilego_apk_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/tisewesir/midie62/idle_theme_park_tycoon_terraformed_island.pdfIn PDF document text
    • https://cdn.sqhk.co/livukigelo/enjfhje/boom_beach_hack_download_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/japedovak/TWhaknv/hot_rod_tattoo_blacksburg_virginia.pdfIn PDF document text
    • https://cdn.sqhk.co/kusasuzona/iehf6aq/pekukabevapuvazovonevapoj.pdfIn PDF document text
    • http://fumuponi.22web.org/rinufoga.pdfIn PDF document text
    • https://cdn.sqhk.co/bipadifudame/1hbnjaH/nedapixopobafibaf.pdfIn PDF document text
    • http://wurulef.22web.org/addition_with_regrouping_4_digits_worksheets.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sebubexegan.rf.gd/hear_me_imagine_dragons_piano_sheet_music.pdfIn PDF document text
    • http://boxulinizisa.epizy.com/36078585758.pdfIn PDF document text
    • http://duwujedop.rf.gd/kebosalanipozakeze.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/81633712688.pdfIn PDF document text
    • http://lugaxelike.rf.gd/durga_devi_aarti_song.pdfIn PDF document text
    • http://pajamubo.rf.gd/average_android_developer_salary_uk.pdfIn PDF document text
    • http://wesafisuki.epizy.com/my_talking_tom_apk_mod_mega.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/microsoft_publisher_recipe_template.pdfIn PDF document text
    • http://ragoposetetadu.epizy.com/36943686185.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/2899889874.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_off0000d81d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD81D 4904 bytes
SHA-256: 4634eb94904d78baf144a9c1b543fe64592f4eda012a2a0e31eb7157f0278331
font_01_sfnt_off0000e8a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A4 10596 bytes
SHA-256: dba87487a7a86b6da113fefabc0965b80735132bb591a1366d4df0240c9d96f3