Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7116ccf508ef9ca…

MALICIOUS

PDF

71.7 KB Created: 2021-02-18 08:57:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6fee6ba2ebbd4ce7450a300de81e1175 SHA-1: 96a33851ad93ec4f4eef0cd4e0236d313de06277 SHA-256: d7116ccf508ef9cab0534e6f16768cc581b3dcba2df0d6abc7c0d7ecf64dbcb8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/123?utm_term=kaba+5000+code+change PDF link annotation
    • http://bufo.online/nuziwuxuzukamopjg1u.pdfIn PDF document text
    • https://murunabijijot.weebly.com/uploads/1/3/5/4/135401069/092aad755234e.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/Xu5ggje/survivor_adventure_survival_island_mod_apk_unlimited_everything.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/fjfDhdb/free_printable_calendar_november_december_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/movozuba/9qHylyI/44031033059.pdfIn PDF document text
    • http://mediaverifiedbadge.com/85370527854sgzet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413703/normal_6001d65b5cfac.pdfIn PDF document text
    • https://rojanebe.weebly.com/uploads/1/3/1/6/131637229/faxusejela.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/bxicjbM/guess_that_candy_quiz_cool_math_games.pdfIn PDF document text
    • http://legendnat.space/ancient_rome_a_new_history_david_potter4p3os.pdfIn PDF document text
    • https://zajinepimasi.weebly.com/uploads/1/3/2/8/132815118/6711617.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/guxosa/pudukavexuwoxutepab.pdfIn PDF document text
    • http://piwegotu.rf.gd/introducing_python_second_edition.pdfIn PDF document text
    • http://siwodonodefofo.epizy.com/vejejekuxakabakabolukukuw.pdfIn PDF document text
    • http://menosupas.epizy.com/dumimerepelo.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_off0000dc6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC6F 5272 bytes
SHA-256: 33fceb5adff3b92d681c3dae0c580de0808b6b650553bbd3ce2c551322b0a161
font_01_sfnt_off0000ee61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE61 10496 bytes
SHA-256: 0390068383c278baf4a40b7596d169697c99ef4c385b9d6932e8e6ccb4a76cf3