Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce11baf75ebe8d36…

MALICIOUS

PDF

73.2 KB Created: 2021-03-11 01:37:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b40114c009fe8d1961d50b7e40ec4bcb SHA-1: c076fd91eafc66247c2afb84f2b9658ae93742b9 SHA-256: ce11baf75ebe8d3610cfba72c332ee466a5a2011edd87e7703dda58668773b4d
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=humungousaur+vs+hulk In PDF document text
    • https://static.s123-cdn-static.com/uploads/4415334/normal_5fdfb13a18bb5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462066/normal_5ff8ed59345a4.pdfIn PDF document text
    • http://wazepewazivulil.mywebcommunity.org/34268647064.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/eYKLjaH/minecraft_mod_1._7_10_hello_neighbor.pdfIn PDF document text
    • http://sokixatov.mywebcommunity.org/86869472057.pdfIn PDF document text
    • http://repair-planshetov.ru/katevakewsvswq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471960/normal_603347a515956.pdfIn PDF document text
    • http://ridunculus.com/77701448317ui5am.pdfIn PDF document text
    • http://feyakast.online/futitemedunusujtzsik.pdfIn PDF document text
    • http://vittorguxx.site/740216623417kaap.pdfIn PDF document text
    • https://cdn.sqhk.co/boxewemutox/fpWagcx/84174123566.pdfIn PDF document text
    • http://coloradocustomelectric.com/14466518807pvje.pdfIn PDF document text
    • https://cdn.sqhk.co/vojasipi/ijfOT6R/38808154140.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a28b0424-17d7-4ca4-ad72-a4f4c396ff8b/lukuse.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/14495262821.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d820261-235b-49e4-8e4f-0514680c8746/trane_tracer_sc_default_password.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6007c336-3631-439b-bb81-02072f353c53/football_manager_2016_wonderkids_list.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/little_manistee_river_salmon_fishing_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8aac74a2-7eed-487e-9e39-929d95ad3880/the_lord_of_the_rings_4k.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/913df786-8378-431e-ab78-6a83c6206efa/98550646635.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_off0000e29f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE29F 5184 bytes
SHA-256: 3b1147245195d817c2a88f15195e044de4a8a6c32c5c6bc31e550f043b4bedf7
font_01_sfnt_off0000f41c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF41C 10520 bytes
SHA-256: 2dce8ee6a18452d7ff25a4002a0b6a926a77e713e66b0eb3c38d52c6bf41fd99

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