Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8331b9bf9a58f20…

MALICIOUS

PDF

89.5 KB Created: 2021-02-16 20:42:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 40ce63360d1aa7eaf32a656d7128af30 SHA-1: a0376109dedd24f4fbfdfa74ab5f026328c9f470 SHA-256: e8331b9bf9a58f20a53ecc150f3f6bce0c31de2d448d3bb5104d3e27005699d8
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/wix?keyword=robert+heinlein+the+moon+is+a+harsh+mistress+pdf PDF link annotation
    • http://starconflict-game.ru/32478412370rqv0g.pdfIn PDF document text
    • http://mizusowe.66ghz.com/gifemewufuvokes.pdfIn PDF document text
    • https://cdn.sqhk.co/litalile/ijqFLn5/15634531462.pdfIn PDF document text
    • http://maska-respirator.com/6747772000r2qd0.pdfIn PDF document text
    • http://bilkaita.space/horse_games_pc_offline_free_download_full_versiondf078.pdfIn PDF document text
    • http://myfoxing.online/38225405092bwzr0.pdfIn PDF document text
    • http://situbune.iblogger.org/96188875798.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/njjlhec/used_cars_near_me_under_7000.pdfIn PDF document text
    • http://zazonowipudu.66ghz.com/deadpool_2_movie_trailer_song.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/ojaDjcu/pamogedogikekasema.pdfIn PDF document text
    • https://cdn.sqhk.co/wujugojuse/iaxjagc/dragon_quest_vii_3ds_rom_espanol.pdfIn PDF document text
    • https://cdn.sqhk.co/madosodu/Rhfa6id/amazing_world_of_gumball_movie_date.pdfIn PDF document text
    • http://sadovik.me/56254382589ub98y.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/rakabexozu/chillara_gang_rap_song.pdfIn PDF document text
    • http://tibilekozox.epizy.com/4757470517.pdfIn PDF document text
    • http://wivonubezur.epizy.com/axes._io_hack_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/21075676877.pdfIn PDF document text
    • http://bavidoripo.epizy.com/steelhead_fishing_report_elk_creek_pa.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_off000122db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122DB 5428 bytes
SHA-256: b3e1e9faab564cce7ac0d37235b132bea8d89dc9674920f7209a2c0c8f5de8c8
font_01_sfnt_off0001351e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1351E 10496 bytes
SHA-256: 5a27ce79ed1f1bd81f512d4687a404548fbf85dedfae7adf184825e711cf8917