Malicious PDF — malware analysis report

Static analysis result for SHA-256 34454b8add3017c0…

MALICIOUS

PDF

64.6 KB Created: 2021-02-13 01:46:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3d787596d969e1d117d695516f125f27 SHA-1: b50f23eb731bbe09acebe20400e0a2d860f0c46f SHA-256: 34454b8add3017c05ac28acc958cd03524cc1c95edb43ab05c1c8626afebd629
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://jacksth.ru/aws?utm_term=flannelette+sheets+kmart PDF link annotation
    • https://cdn.sqhk.co/neviragar/ijchc4Q/busar.pdfIn PDF document text
    • http://kwini-fini.online/79237377281xemw5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366359/normal_5ff379d3e018d.pdfIn PDF document text
    • http://ziviludemedo.iblogger.org/black_and_red_wallpaper_for_mobile.pdfIn PDF document text
    • https://cdn.sqhk.co/bezupidokaz/KrDhcib/my_talking_tom_friends_game_play_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420434/normal_5fc64bbf9117c.pdfIn PDF document text
    • http://instasurprise.online/66636342278zuete.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392650/normal_600e38535a23f.pdfIn PDF document text
    • http://acupofjacob.com/best_drill_guide_jigmhs6a.pdfIn PDF document text
    • http://usesalle.xyz/612341809776lii5.pdfIn PDF document text
    • https://cdn.sqhk.co/tezizejaropu/BhaXgj2/manor_park_management_inc.pdfIn PDF document text
    • http://vashe-zdorovie.xyz/elements_of_music_third_edition_answer_keyod63x.pdfIn PDF document text
    • http://dressnbuy.com/suviseref0t9s.pdfIn PDF document text
    • http://austritkfa.com/persona_4_yoshitsune_guidenowsq.pdfIn PDF document text
    • http://polnews.xyz/gmail_ar_yahoo_pat_kuris_yra15zrh.pdfIn PDF document text
    • https://cdn.sqhk.co/wubunepan/gJhiyjg/girl_halloween_costumes_2019_party_city.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/tawovojo/zoxapobikit.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/falmouth_primary_school_ofsted_report.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_off0000c10a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC10A 4944 bytes
SHA-256: f03532f4d9542b55bdea95156134da03aeba41390c514d71b858945227cd4684
font_01_sfnt_off0000d1ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1AB 10836 bytes
SHA-256: 460f9eb4d2bbe57bc25e5529a60065d38eb3d32029b414200630c2e4f24ec60e