Malicious PDF — malware analysis report

Static analysis result for SHA-256 244c674280de43ff…

MALICIOUS

PDF

69.1 KB Created: 2021-02-24 21:02:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 6b82003d4e732c7823f66a5ab586efbe SHA-1: a61996525555a1cb9e31d296248475e0636bf29d SHA-256: 244c674280de43ffee24f8b199e020094d2fb71fa8c5e8aad80662e93a3022ec
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://bologen.ru/award?keyword=what+are+some+fun+things+to+research PDF link annotation
    • http://help-violation.com/26748972356ya8dp.pdfIn PDF document text
    • http://opt05.ru/telaragamumugipsysrh.pdfIn PDF document text
    • http://m-ryanaf.site/amiga_roms_androidgyfkb.pdfIn PDF document text
    • http://cmb-accueil.com/how_to_put_sim_card_in_lg_rebel_4iqbic.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375207/normal_5fdcc3b9b1600.pdfIn PDF document text
    • http://idealica-columbia.site/92581595991aqfwm.pdfIn PDF document text
    • http://gosejoligezo.iblogger.org/cable_stayed_bridge_design_manual.pdfIn PDF document text
    • http://vezdesami.ru/nadokefimisevoxirosa00qtf.pdfIn PDF document text
    • http://cybety.xyz/soundcloud_go_apk_redditq3hkg.pdfIn PDF document text
    • http://photoforce.ru/alzheimer_s_disease_signsgsvxa.pdfIn PDF document text
    • http://boomerangoo.site/english_worksheet_for_grade_2_students9fsqc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413474/normal_5fe4801ede476.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494875/normal_5fe66de4a99c5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401555/normal_5fdeaf696b25b.pdfIn PDF document text
    • http://newsportstechnology.ru/bt_business_hub_3._0_manualyw7pf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393188/normal_6003c25ddc37e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jokilezitewoj.epizy.com/fimatilatisanenewaduvu.pdfIn PDF document text
    • http://fegarezitima.rf.gd/city_of_ottawa_recreation_guide_fall_2017.pdfIn PDF document text
    • http://leporib.epizy.com/pifezutosidiratuzusudu.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_off0000d348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD348 5276 bytes
SHA-256: 893d10ee6523a940da2b59c9930f6bd5c0219c3bfac78d9dd519e1a028a41021
font_01_sfnt_off0000e521.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE521 9972 bytes
SHA-256: 710ac86e9586b46379a59058a5408804c0359ef5cb79efec02900bb188f88eef