Malicious PDF — malware analysis report

Static analysis result for SHA-256 975e317a0008b280…

MALICIOUS

PDF

67.8 KB Created: 2021-03-08 12:52:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ffb752590644e9137f1e6c1bfd8bb9de SHA-1: 133b4b1ffdac77886484dedba3d8ca0438746f82 SHA-256: 975e317a0008b280ef2e111a03daad414747ea471011959b6b5e9e742a97d494
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than 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.
  • 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://crophysi.ru/wix?keyword=brookstone+wine+opener+with+foil+cutter In PDF document text
    • http://rubka.space/bsc_2nd_year_maths_notesanxzw.pdfIn PDF document text
    • https://xasizitip.weebly.com/uploads/1/3/1/3/131383358/4390397.pdfIn PDF document text
    • http://help-verifiedbadgecenter.com/59012307751c992e.pdfIn PDF document text
    • https://kikoxelila.weebly.com/uploads/1/3/4/3/134335894/9770442.pdfIn PDF document text
    • https://cdn.sqhk.co/sumefixes/uighhvC/81840977417.pdfIn PDF document text
    • http://help-bluebadgecenter.com/writing_slope_equations_worksheetccd53.pdfIn PDF document text
    • https://cdn.sqhk.co/vedisaso/Rdchjhd/fetotefolelapozefela.pdfIn PDF document text
    • http://latencfsrt.space/how_to_check_transmission_oil_in_vw_poloyny94.pdfIn PDF document text
    • http://lightly.store/58833182266qu3k8.pdfIn PDF document text
    • https://pufoxedoj.weebly.com/uploads/1/3/4/4/134438994/poligi.pdfIn PDF document text
    • https://kixipebirivevex.weebly.com/uploads/1/3/0/7/130739750/lozapisijuda_pipoxujaxi_fimegexetag.pdfIn PDF document text
    • https://cdn.sqhk.co/gotulurowav/cjcAhho/zobumuxeras.pdfIn PDF document text
    • http://kojijeku.mygamesonline.org/shark_ion_robot_vacuum_rv761_reviews.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/wusobotikimevatalapum.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fajazimigig.atwebpages.com/blood_bowl_season_2_roster_sheet.pdfIn PDF document text
    • http://kuwitabetegipo.myartsonline.com/simple_talking_english_words.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0da988c-321a-416a-a854-08566c8f468e/nascla_contractors_guide_to_business_law.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8059f186-b116-429d-bb2a-07c0c1398c94/christmas_shoes_song_lyrics_youtube.pdfIn PDF document text
    • http://duwemanuwixam.atwebpages.com/3856049673.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d17fe6b8-002e-42e2-8b10-2810f857acf1/lirik_lagu_dan_kunci_gitar_charlie_puth_one_call_away.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_off0000ccf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF2 5096 bytes
SHA-256: 867e3d1783f6f31aaa54e7a153e0d1625c4d151a41ae10b08912cf6c40cea997
font_01_sfnt_off0000de63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE63 9936 bytes
SHA-256: bd55f1156ccd702f7168a3f0ece83b076ea997eecb3cff25db689db0de25aaad