Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dd514bb922ee018…

MALICIOUS

PDF

69.9 KB Created: 2021-02-28 13:04:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4dc9a9fab1a68c5ddcee927d1c447c5a SHA-1: 33f421284d3bcb62fbfe9022152006c17bd4425b SHA-256: 2dd514bb922ee01843eb5309075b6058333bf12bf6b5001d250a3de15e1b2dd6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/award?keyword=zebra+gk420d+driver+software PDF link annotation
    • https://gisijenoxumo.weebly.com/uploads/1/3/1/4/131437849/dc8b0efc8eb81f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421476/normal_5ff3fbd2b44f6.pdfIn PDF document text
    • http://bbbbbbbbeeee.space/28000498385q9jf2.pdfIn PDF document text
    • http://herss.space/the_strongest_niv_exhaustive_concordance_ebook7cild.pdfIn PDF document text
    • http://catsism.com/pendidikan_di_era_society_5._0n23f7.pdfIn PDF document text
    • http://cardio-natural.info/34203804309fvqjd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501231/normal_603aa07148881.pdfIn PDF document text
    • http://istlan.fun/39768112213hel8t.pdfIn PDF document text
    • http://salonop.xyz/how_to_complete_goals_at_work8iq0j.pdfIn PDF document text
    • http://winoraama.website/23741021569uhpc6.pdfIn PDF document text
    • http://wazepewazivulil.mywebcommunity.org/the_fall_guy_season_1_download.pdfIn PDF document text
    • http://yewes.space/tv_guide_fall_2018_scheduleadub4.pdfIn PDF document text
    • http://lnstagramsecurity.net/anyconnect_4_ordering_guide6kead.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_off0000cbaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBAA 5716 bytes
SHA-256: 2d8c2d5f4878cb8400e24da819951cf2b33864f5d40cc49c1684c0af4f6febc9
font_01_sfnt_off0000df54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF54 13916 bytes
SHA-256: f05bea5b235cc3a1292018b92817422fd76db82e22a3159e981b8640b5c334bd