Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed870b7aef3887a…

MALICIOUS

PDF

73.8 KB Created: 2021-02-03 12:59:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 45a9997665a5168789cc7f3f01aa361c SHA-1: 435cc3c56e8b27291098e42176ba7f09c0d06059 SHA-256: aed870b7aef3887a112adb8f0d11b5495ff3a4e8086fbfb3bcd7041c27295102
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://baarspo.ru/wb?keyword=multiplayer%20online%20battle%20arena%20games%20for%20android PDF link annotation
    • http://mihetos.xyz/piwonifumipidutur2oqh.pdfIn PDF document text
    • http://dkmz2.club/93391007567zmthx.pdfIn PDF document text
    • http://ecoservice-vlad.ru/murufwm1ja.pdfIn PDF document text
    • https://cdn.sqhk.co/ketalidukepi/jfhbbhb/24259836079.pdfIn PDF document text
    • http://rifubabesepa.iblogger.org/jikibubanogegifefub.pdfIn PDF document text
    • http://com-signto6.xyz/mokojawamst7fr.pdfIn PDF document text
    • https://cdn.sqhk.co/wovupeni/gfhhjjl/jotunufukexul.pdfIn PDF document text
    • http://nekalakizifefe.22web.org/boroughbridge_high_school_sixth_form.pdfIn PDF document text
    • http://itslm.fun/learn_to_play_piano_music_sheetsbj87o.pdfIn PDF document text
    • http://samelike.site/pagekakunopukul8ejo.pdfIn PDF document text
    • http://afracheat3.xyz/warframe_helminth_segment_blueprintn0dit.pdfIn PDF document text
    • http://frukt.fun/49513825429pymm8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://levuvov.epizy.com/conway_twitty_sheet_music.pdfIn PDF document text
    • http://begilokikilox.rf.gd/behan_ka_pyar_na_tute_song.pdfIn PDF document text
    • http://zuwarikufaz.epizy.com/75905286817.pdfIn PDF document text
    • http://tuxugev.epizy.com/impetigo_herpetiformis_case_report.pdfIn PDF document text
    • http://zapopododo.rf.gd/axelos_prince2_agile.pdfIn PDF document text
    • http://rukudukewa.epizy.com/aol_9._7_for_windows_7.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_off0000e394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE394 5608 bytes
SHA-256: 9ac1f8e3d81a55ce434659329effa8b7d6cb26d0022e61ed2e7830cedd50ee1f
font_01_sfnt_off0000f6a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A2 10240 bytes
SHA-256: e65135b1428082755cc8823ae9244f4939c885cd63408d05186fd729455664cd