Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0e1d749d5c26ff2…

MALICIOUS

PDF

68.0 KB Created: 2021-02-28 19:02:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5dffcb91be43904cfb764222a56b17b5 SHA-1: f54777a64f8c6230314580387b87019dc650bb0a SHA-256: f0e1d749d5c26ff2c9e30258c0a9c673ed5687355a7723b85de92425ed326371
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://jumiwimov.ru/award?keyword=how+to+look+up+mailing+addresses PDF link annotation
    • http://copyright-help-center.com/19157568990aowrh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469841/normal_6020392414ff3.pdfIn PDF document text
    • https://jenajurowob.weebly.com/uploads/1/3/1/4/131408252/lejepitiwi.pdfIn PDF document text
    • https://tepadomuxufebe.weebly.com/uploads/1/3/1/3/131382092/12233c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447464/normal_600efab161e4a.pdfIn PDF document text
    • http://ziwigosopijulal.mygamesonline.org/98811932175.pdfIn PDF document text
    • https://vadurevagide.weebly.com/uploads/1/3/3/9/133999829/fuziwexot_duxufumaxed.pdfIn PDF document text
    • http://want-seo.ru/swirl_background_pattern_freeoaqyl.pdfIn PDF document text
    • http://laluwaraselolar.mywebcommunity.org/how_to_upload_files_to_my_cloud_ex2_ultra.pdfIn PDF document text
    • https://papozigej.weebly.com/uploads/1/3/1/8/131858530/4867e29344884.pdfIn PDF document text
    • http://reduslim-official.website/1793518656422a6m.pdfIn PDF document text
    • http://tokepubex.getenjoyment.net/what_games_are_compatible_with_thrustmaster_t80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_600d7b32eb72b.pdfIn PDF document text
    • https://nodemudikukurev.weebly.com/uploads/1/3/5/3/135348567/viwumuvu.pdfIn PDF document text
    • https://vejikawotepux.weebly.com/uploads/1/3/4/8/134887167/fc42e4e143e1.pdfIn PDF document text
    • http://oneitstore.info/what_happened_in_the_bobo_doll_study2ohjg.pdfIn PDF document text
    • https://repepojopojak.weebly.com/uploads/1/3/5/9/135970902/26d12.pdfIn PDF document text
    • https://kopiwuzurori.weebly.com/uploads/1/3/1/3/131398237/xakugaluvubofar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462075/normal_5fc9cfd0d3b90.pdfIn PDF document text
    • https://luwinititik.weebly.com/uploads/1/3/4/5/134587042/tiwurivadu-sutuzujatopaluw-mokonukubub-wunanup.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kopolug.myartsonline.com/how_much_is_the_v_shred_app.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_off0000cf2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF2C 5396 bytes
SHA-256: 208e4c2865d406dc93b17097450da294341936df747f25944a72e9fac9642edb
font_01_sfnt_off0000e179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE179 9648 bytes
SHA-256: a5db2becf7809c5d4469e9d0300c68d618a3f399a782c45f0666cabc9847ff76

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