Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0f02bfc66a6b340…

MALICIOUS

PDF

68.7 KB Created: 2021-02-20 06:28:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: cf4b6f9d0a66907cbc392f9b217c3710 SHA-1: ec811a02c2c9c522cc13a77680b4b6cc5d9ff6bb SHA-256: e0f02bfc66a6b340d628b3ddc24bb9013bd46d07da3e8f3d38504b5ae240e60b
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://yafferge.ru/wix?keyword=introduction+to+industrial+organization+luis+cabral+pdf In PDF document text
    • http://fipevowes.iblogger.org/american_law_reports_bluebook.pdfIn PDF document text
    • https://vipukawolatu.weebly.com/uploads/1/3/4/4/134486161/kutepubipejopa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476445/normal_6002c272c435d.pdfIn PDF document text
    • https://sesumevikenaful.weebly.com/uploads/1/3/5/3/135346106/josebovezalerak.pdfIn PDF document text
    • http://quickstore.pro/9074983331tgjqt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478667/normal_602d66646e1b4.pdfIn PDF document text
    • http://amaryllis.space/v4_mmo_classesrinil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369916/normal_602c2e4ba6f8b.pdfIn PDF document text
    • http://reawolt.online/jetekufanilosozozm72k7.pdfIn PDF document text
    • http://baltika-trans.ru/28605092130ulmkm.pdfIn PDF document text
    • https://janafapaxe.weebly.com/uploads/1/3/1/6/131606835/lujadorijavamoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501482/normal_60136084299fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382621/normal_5fcd119c06c9d.pdfIn PDF document text
    • https://bafuselowazela.weebly.com/uploads/1/3/5/3/135318440/zojebelip_ritipunelukite_xagejebe_mozusuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lojarine.epizy.com/gewewowobarimebimediguse.pdfIn PDF document text
    • http://dogirajuwuxo.epizy.com/1st_rank_raju_movie_utorrent.pdfIn PDF document text
    • http://fozubogedunok.rf.gd/15888419806.pdfIn PDF document text
    • http://jagofebasej.epizy.com/what_is_an_example_of_a_complex_adaptive_system.pdfIn PDF document text
    • http://lozepijox.epizy.com/printf_format_bool_c.pdfIn PDF document text
    • http://pikuvideposem.epizy.com/ripigopixoki.pdfIn PDF document text
    • http://pamiwumewamem.epizy.com/29113152519.pdfIn PDF document text
    • http://dokelegusipodi.epizy.com/a_r_aging_report_quickbooks.pdfIn PDF document text
    • http://duresonorapalet.rf.gd/43114590763.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_off0000ce8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE8A 5448 bytes
SHA-256: 12695d06c57e35c314ecdc974f5b8632b710cca0ee1888f7e7ee031ce171a2fb
font_01_sfnt_off0000e125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE125 10508 bytes
SHA-256: 3ea9abd531f25f42caf77ee9e57836ab458ae2575d2f474b7c3cc00929ff69d9