Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9e2ed8814010926…

MALICIOUS

PDF

71.1 KB Created: 2021-03-04 12:38:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 66570b917496cb92e1cf09a2b21ee44d SHA-1: c6aca10b98bf64cc256bcd4d11d81facd22ee4cd SHA-256: e9e2ed8814010926f0e666904fe26f837b77387b0256bcf8bb60b8ad91cc67a1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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://midufefew.ru/wix?keyword=oster+expressbake+bread+maker+5838+manual PDF link annotation
    • https://cdn.sqhk.co/wofazexej/ibTgjjb/shark_dash_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzutuse/jj4VgAl/36691275751.pdfIn PDF document text
    • https://bezulagoxirupaz.weebly.com/uploads/1/3/5/3/135347250/keroxoli.pdfIn PDF document text
    • http://topplafond.xyz/eurydice_bologna_process_implementation_report2dsdb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475571/normal_60273d20d3696.pdfIn PDF document text
    • http://fakts.design/are_light_pink_diamonds_valuable8t901.pdfIn PDF document text
    • https://wufotojinelulut.weebly.com/uploads/1/3/1/1/131164112/6738199.pdfIn PDF document text
    • https://cdn.sqhk.co/fedelubu/jciiacS/strategic_management_professional_certification.pdfIn PDF document text
    • https://cdn.sqhk.co/zasemewiti/1Nsidjh/original_barber_shop_torrance.pdfIn PDF document text
    • http://ritual-venki.online/satiwitih4syx.pdfIn PDF document text
    • https://kazirevuteguzug.weebly.com/uploads/1/3/2/6/132681824/janazifaz.pdfIn PDF document text
    • http://hdvideo.design/beats_by_dre_pro_totally_wireless_review9avey.pdfIn PDF document text
    • http://prodson.space/97717939430yabof.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420608/normal_5ff8b4db2cd30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412780/normal_5ff8237b7472a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD940 5884 bytes
SHA-256: bf7d856a4ce75a7a12588568225d26978a8e55e66c3926cfd16d66ab2f3eea34
font_01_sfnt_off0000ed2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED2C 10016 bytes
SHA-256: 55c37a41eaedf0555546ae6b9eebe4ae82b8717712306143143c3dd669ee405f