Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb8ba60ee2074c70…

MALICIOUS

PDF

74.5 KB Created: 2021-02-19 19:04:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 58ede7307493216f2f2274c90af2141d SHA-1: f058583e5fe706a84c7b0b2848444f3c1ca92e52 SHA-256: eb8ba60ee2074c703f4b74e0ee4423c02254554c8fe31f4e4eb97db56e64bc49
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/123?utm_term=drawing+of+baking+tools+and+equipment PDF link annotation
    • http://astropsychology.website/samsung_scx-4623f_manual_en_espaolju6i2.pdfIn PDF document text
    • https://tebadigizowi.weebly.com/uploads/1/3/4/1/134109241/vujawosubenedip.pdfIn PDF document text
    • http://forexgeeks.net/3157406010psf16.pdfIn PDF document text
    • http://aycotoro5.xyz/viber_old_version_app51uib.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/4t4jgRK/rap_to_beats_apk_uptodown.pdfIn PDF document text
    • http://baby-slings.ru/wumedexalerosejekug2geeg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470681/normal_5ff1183992771.pdfIn PDF document text
    • https://ruwufinojib.weebly.com/uploads/1/3/4/6/134643146/dinalenarenorek-foxufokilef.pdfIn PDF document text
    • http://wonnaturila.space/lamozumabidefigawajepidur0ha44.pdfIn PDF document text
    • https://cdn.sqhk.co/rukeditele/giRdzez/cardboard_cutouts_custom.pdfIn PDF document text
    • http://motivawka.online/florida_economic_loss_rule8h9he.pdfIn PDF document text
    • https://cdn.sqhk.co/dakagugi/boajbpa/ninja_dash_ronin_jump_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/mukibusu/a6zhbd5/beyblade_rail_rush_battle_set_myer.pdfIn PDF document text
    • https://fonekukiko.weebly.com/uploads/1/3/5/3/135393218/7141546.pdfIn PDF document text
    • http://italiahot.fun/3313897256ssmjp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE398 5780 bytes
SHA-256: 8b6437886ac01c1b8b54ea7b68ce31451589f71a5fa5b68a763d2a40b548c418
font_01_sfnt_off0000f742.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF742 11148 bytes
SHA-256: dc5404207b0bf53ffe1218c9113298bc1d9d0a139c1fe289fec3708788cba3e2