Malicious PDF — malware analysis report

Static analysis result for SHA-256 0512a964e87333a3…

MALICIOUS

PDF

66.1 KB Created: 2021-01-31 14:27:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f738840433f4a965885359281c778ae6 SHA-1: b49acd20ac6dea4c03a7f199bd4d5f2cbb647533 SHA-256: 0512a964e87333a37b8e27c6f2e1aeef863b81c3e2f8c234f90774495b58d7b8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wb?keyword=mars%20miner%202%20unlimited%20money PDF link annotation
    • https://cdn.sqhk.co/wavefekus/gcbbUja/toolbox_widget_angle_wrench_organizer.pdfIn PDF document text
    • https://cdn.sqhk.co/junizafuzep/R4RD42b/ice_cream_recipe_cuisinart_chocolate.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/bjdihJv/koregujoteg.pdfIn PDF document text
    • https://cdn.sqhk.co/wogokodu/hbgejgJ/zigopenurosupetuki.pdfIn PDF document text
    • http://lidzadva.xyz/limitsiz_takipi_kazan_apk_downloado9euk.pdfIn PDF document text
    • http://beremoter.online/watch_the_lawless_lawyer5dggr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fojamemu.epizy.com/69056632543.pdfIn PDF document text
    • http://pedojup.rf.gd/44133993554.pdfIn PDF document text
    • http://pigozezidum.rf.gd/tagume.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/negative_effects_of_cyberbullying.pdfIn PDF document text
    • http://jonapepubenej.epizy.com/report_injured_wildlife_brisbane.pdfIn PDF document text
    • http://vijesir.rf.gd/zuzageke.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/dewovazotovumidewisude.pdfIn PDF document text
    • http://jasixerebav.epizy.com/free_throw_score_sheet.pdfIn PDF document text
    • http://gadoxijumulop.epizy.com/61153218356.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_off0000c134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC134 5212 bytes
SHA-256: 25fc572dbc82c580ce80d1628c4a0fe4e9fe92441ef8fd60d52acd91000de738
font_01_sfnt_off0000d2e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2E7 12468 bytes
SHA-256: b1a117508cfaea195a6f9ebaa748684445d2b1718b53684d7c536e7137cc7e1f