Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5c1dd79af4dabf7…

MALICIOUS

PDF

70.6 KB Created: 2021-02-09 01:45:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f29d13610f38dbd79dca9ad1acd19ed5 SHA-1: 874f994f47f346875102d29894faa8da38eeddaf SHA-256: b5c1dd79af4dabf75369863e6cc65398721dcedcd6be2fd3e5f76ea0f361359b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wb?keyword=urine%20culture%20report%20normal%20values PDF link annotation
    • http://wiinorama.space/lukugezopis95igw.pdfIn PDF document text
    • http://merishwheelrecords.com/27911468992fjqy8.pdfIn PDF document text
    • http://wgathering.org/online_exam_system_project_report_in_phpujizq.pdfIn PDF document text
    • http://goodsun.fun/srimad_bhagavatam_hindi_free_downloaditr9f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408995/normal_5fddae62debff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477651/normal_6001bcbb53aec.pdfIn PDF document text
    • http://euroshopmn.space/jecha_beektotaa_addunyaaeznwg.pdfIn PDF document text
    • http://slampochka.ru/osrs_99_prayer_guidefdx2k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472788/normal_6019870c09a08.pdfIn PDF document text
    • http://instapodarok.site/superhero_in_flightxwmah.pdfIn PDF document text
    • http://lnstagramverifiedbadgeshelpcenters.net/jabejesutetanopinanagovem4v6fj.pdfIn PDF document text
    • http://triple-doska3.club/78759781106gt97y.pdfIn PDF document text
    • http://1offpark.xyz/balfour_v_balfour91v9g.pdfIn PDF document text
    • http://klokisik.space/pebezebitomezj4ilz.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/xefezesebusu/80958456727.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_off0000d831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD831 5132 bytes
SHA-256: 42f907a117de2310c97c1da8ca14a4e967da6207c00dce17db4692c1d19c9eb2
font_01_sfnt_off0000e994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE994 10588 bytes
SHA-256: 7aa450d74f8fa049efde4bc0feebc1224fb329575ec599ca0339d600d562eb41