Malicious PDF — malware analysis report

Static analysis result for SHA-256 081e7cf0d2d51944…

MALICIOUS

PDF

70.4 KB Created: 2021-02-08 18:38:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bb5cc78440ce490d8762cf363022b0db SHA-1: f30cc101a7f8fe39298b8a5308cedffb37b12ce2 SHA-256: 081e7cf0d2d5194425264746f4eb27d778f7e7cb706d0dbc8d77efbbb6a7d9b7
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/aws?utm_term=bareilly+ki+barfi+movie++filmywap+2017 PDF link annotation
    • http://flowerport.store/sujorusiniziradedapijd7px.pdfIn PDF document text
    • http://merishwheelrecords.com/brain_and_behavior_eagleman_ebookhmarm.pdfIn PDF document text
    • http://lnstagramoriginal.com/euphoria_piano_sheet_hard28558.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452839/normal_600658e790edc.pdfIn PDF document text
    • http://reduslim-italia.website/wuvajinerako4rk69.pdfIn PDF document text
    • http://mifvideo.space/savindra_singh_geomorphology_free_download1ixzy.pdfIn PDF document text
    • http://mon-cmbretagne.best/hello_neighbor_nintendo_switch_walkthrough_act_1k6vmq.pdfIn PDF document text
    • http://legendarycraft.ru/entrepreneurship_successfully_launching_new_venturesnjtkw.pdfIn PDF document text
    • http://womenit.space/genius_song_lyrics_morewwl2o.pdfIn PDF document text
    • http://train-home.ru/94933522760tl076.pdfIn PDF document text
    • http://begemotiks.fun/kuvilemojakilexerijofibovdxmgb.pdfIn PDF document text
    • http://vorecan.space/puxoguwosadig162yo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/loneminovu/isaac_physics_answers_d4.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/annexure_c_for_passport.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/google_spreadsheet_without_login.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/90534826099.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/vasoxefasuzog.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/canard_pc_hardware.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_off0000d43c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD43C 5780 bytes
SHA-256: 109ff27e944df4cc95cb456931ce605ae0679a3b0264776950465d500f9027b3
font_01_sfnt_off0000e803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE803 10796 bytes
SHA-256: 6fefad4173dfa06674ada1a73fcc4c29f744797041a1affd88dc5f95e3a4edb4