Malicious PDF — malware analysis report

Static analysis result for SHA-256 18aeeed3ca6647ee…

MALICIOUS

PDF

66.1 KB Created: 2021-03-02 08:56:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 53d876b1d869691e69c0bb4ca1075596 SHA-1: ecbd15df1e21cdda5402f4e8ac8b10062ec007a9 SHA-256: 18aeeed3ca6647eedebd6df789048ab63166979ceb6fbbf9ed4b1744a192a5f1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://kuzutuzo.ru/wix?keyword=dad+n+me+unblocked PDF link annotation
    • https://pozuxona.weebly.com/uploads/1/3/1/3/131398461/a10168.pdfIn PDF document text
    • https://fefokivaz.weebly.com/uploads/1/3/0/7/130776727/fevagapivizefogeg.pdfIn PDF document text
    • http://tufuwavaziga.mygamesonline.org/53468593210.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415537/normal_602dcc4b587a9.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/come_home_to_roost_idiom_meaning.pdfIn PDF document text
    • https://lusebedadejaxid.weebly.com/uploads/1/3/1/4/131407110/bufudadiripago.pdfIn PDF document text
    • https://tusujowifavenag.weebly.com/uploads/1/3/1/4/131453847/zofobex-loparisapowi.pdfIn PDF document text
    • https://lononefebodamu.weebly.com/uploads/1/3/2/6/132696526/aeb4e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489035/normal_603172ab6a4f2.pdfIn PDF document text
    • https://dakemowizip.weebly.com/uploads/1/3/4/4/134485630/8887310.pdfIn PDF document text
    • http://murunabo.iblogger.org/50513895897.pdfIn PDF document text
    • https://wixotavu.weebly.com/uploads/1/3/4/7/134764887/kibafizuxonu-jefesabaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416790/normal_6023b7f787c5b.pdfIn PDF document text
    • https://sulunekuzesafap.weebly.com/uploads/1/3/1/4/131406846/kefek.pdfIn PDF document text
    • https://jevogivufete.weebly.com/uploads/1/3/0/7/130738845/juzivuwawaj-xopixetanafa-boboze.pdfIn PDF document text
    • http://zabemaladameg.medianewsonline.com/67720576301.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xajizufobuvofo.epizy.com/guides_for_brides_venue_login.pdfIn PDF document text
    • http://noroved.myartsonline.com/how_to_board_a_ship_in_the_navy.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_off0000c8b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B6 5012 bytes
SHA-256: 464fe83843af630b456c54fb1af75609690a774746ad9b1bc2dd7bd26b10a544
font_01_sfnt_off0000d9b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9B6 10004 bytes
SHA-256: be6d664afab8e2f8b85911dbc43262e4364ec7e16a40e67e51b55e4608cb21ab

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