Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec4afa81ca27cc4…

MALICIOUS

PDF

68.3 KB Created: 2021-02-25 16:14:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f4629b060ee2646c440d4c7a0b02fbc4 SHA-1: e6e3d81f66cef9e45e8fc2458f9a00475f81f587 SHA-256: 9ec4afa81ca27cc4569d55b36fb6152fa684d96e8f769d6754312f343ba47b3b
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://seumenha.ru/award?keyword=how+do+you+set+a+brinks+timer+44+1010 PDF link annotation
    • http://gexopidikimo.mygamesonline.org/the_crown_season_3_episode_8_wikipedia.pdfIn PDF document text
    • http://zakewabo.scienceontheweb.net/lojefotolofo.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/78796331269.pdfIn PDF document text
    • http://fuvesozufinefi.medianewsonline.com/fufaxufawevinolejedukapab.pdfIn PDF document text
    • https://beperupofifu.weebly.com/uploads/1/3/1/6/131636755/531038b.pdfIn PDF document text
    • http://bomaduworofa.medianewsonline.com/45093355245.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/brother_hl-2270dw_printer_toner_reset.pdfIn PDF document text
    • https://levevuwakute.weebly.com/uploads/1/3/4/9/134904524/d20cfa6.pdfIn PDF document text
    • https://cdn.sqhk.co/vozeseseber/igehKjb/color_changing_night_light_app.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zerejibixupav/41537635450.pdfIn PDF document text
    • http://nabenejajoko.myartsonline.com/31021527977.pdfIn PDF document text
    • http://sazasewugekupej.onlinewebshop.net/jatotazibobeb.pdfIn PDF document text
    • http://zevusup.atwebpages.com/how_to_calculate_compound_interest_over_time_in_excel.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/vobapisapabepagimi.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/frp_bypass_application_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/64333103595.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/aneurisma_bone_cyst_adalah.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC195 5460 bytes
SHA-256: cb8fb3921836554e5de659303fff318190f0cec77cd9ab2ce3dda639a854c9e2
font_01_sfnt_off0000d429.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD429 9920 bytes
SHA-256: 663c217133d1edd95ca42ba8b5d966d192162831272051f386b0a86f5ea716a4
font_02_sfnt_off0000f60d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF60D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2