Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dee18830f92de84…

MALICIOUS

PDF

72.9 KB Created: 2021-02-05 22:15:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 52d2633f4768b56c10c6d83933973e8d SHA-1: 2493b57e98d06b450285d4f09f39a3d51ec89ca5 SHA-256: 2dee18830f92de8422e1c936fc6100e955e5b9ab29c9924f618f8532085dd69e
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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://bologen.ru/wb?keyword=wedding%20budget%20calculator%20excel%20spreadsheet PDF link annotation
    • https://tomutoremaduv.weebly.com/uploads/1/3/1/3/131398477/4547491.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/bCyjjJY/dynamons_world_mod_apk_unlimited_pokemon.pdfIn PDF document text
    • http://9gusevshop.website/best_shooters_nba_2019_draftjzv4e.pdfIn PDF document text
    • https://bipovubukixepev.weebly.com/uploads/1/3/2/7/132740720/0dcc34b68f48f.pdfIn PDF document text
    • https://cdn.sqhk.co/jidelugob/hjwzfhh/98018297637.pdfIn PDF document text
    • http://itverys.space/mesiloroxotemaxijofosan2gyn.pdfIn PDF document text
    • https://legoxadev.weebly.com/uploads/1/3/2/3/132302888/0416b3bfb1975.pdfIn PDF document text
    • https://dajilifu.weebly.com/uploads/1/3/4/8/134891154/5131547.pdfIn PDF document text
    • http://uchebnoe.website/seirei_gensouki_light_novelddqsd.pdfIn PDF document text
    • https://cdn.sqhk.co/mukujoripu/OyfhBge/colorfly_dark_skull_coloring_book.pdfIn PDF document text
    • https://cdn.sqhk.co/detateseb/0gegghf/bike_impossible_tracks_race_3d_motorcycle_stunts_download.pdfIn PDF document text
    • http://krym.today/ielts_certificate2tk7c.pdfIn PDF document text
    • http://dnepr24.info/reconnaitre_une_nymphomane5fhcp.pdfIn PDF document text
    • https://jinunezig.weebly.com/uploads/1/3/4/3/134308797/0fc540b5fa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://guwavamo.rf.gd/wedding_march_score.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_off0000de1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1A 5556 bytes
SHA-256: 6a1315623f19c2648808bfd73ffb22077d2a69c973f685af165fb6518c355e12
font_01_sfnt_off0000f107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF107 11108 bytes
SHA-256: 05e79ec354713bc6cf4d7cc594edcf33e9e436edb00c762283fc1cb890d21197