Malicious PDF — malware analysis report

Static analysis result for SHA-256 24e383fdc874caaf…

MALICIOUS

PDF

79.3 KB Created: 2021-03-08 11:35:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 135aba33fba7b2f88d91ed48a3581660 SHA-1: a770e0d83bcf20613f338e64d4ee32ef79f62027 SHA-256: 24e383fdc874caaf8bd7651a029b2823b1e345f8290e37ac166b406a8e2965ed
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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://leonvi.ru/award?keyword=variedades+de+cafe+en+bolivia+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391331/normal_602f9ce40b51b.pdfIn PDF document text
    • https://rigukolanerimi.weebly.com/uploads/1/3/4/5/134519373/f14e44f864b56b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382412/normal_601b711c2b8e8.pdfIn PDF document text
    • http://vekvelo.ru/marie_kondo_folding_fitted_sheetuzk5q.pdfIn PDF document text
    • http://kwini-fini.online/331109527389z2yb.pdfIn PDF document text
    • http://cz-nitrof.website/marksheet_format_in_ms_word4v2j5.pdfIn PDF document text
    • http://fruktovik.com/redcat_racing_tornado_epx_pro_partsnz774.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387410/normal_5ff78fea0900a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386091/normal_5ff20ab6ac902.pdfIn PDF document text
    • https://jowapiwinutakun.weebly.com/uploads/1/3/4/3/134365581/ac79b81c11684.pdfIn PDF document text
    • http://mazers.fun/95447842226b9cp0.pdfIn PDF document text
    • http://tonerinkstore.com/zolemivut7717v.pdfIn PDF document text
    • http://trixy-matrix.space/dirt_devil_power_reach_handheld_vacuum_cleaner1qgn7.pdfIn PDF document text
    • http://natikolom.site/acid_base_reactions_titration_curve_worksheet_answershryzt.pdfIn PDF document text
    • http://nujuxogo.iblogger.org/12264872235.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405186/normal_5fd36a0cc678f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://xadamodovupeniz.rf.gd/geometry_worksheet_triangle_congruence_proofs_answers.pdfIn PDF document text
    • http://jekidosokun.epizy.com/30640945164.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf78bce9-00b5-4198-b8e0-aa849fb6cc9d/tizururibodozure.pdfIn PDF document text
    • http://semeluja.epizy.com/msi_970a-g46_cmos_reset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8664fd99-d4fb-479a-bde5-ed7fe310cd4a/nefixida.pdfIn PDF document text
    • http://falisetiven.epizy.com/tinitel.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e99f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE99F 5020 bytes
SHA-256: d157ca2fb8b70875ee2a24eec11bd38e7d7ccbf51ceadfc37de451377df79493
font_01_sfnt_off0000fab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAB3 11192 bytes
SHA-256: 54b16a4909cefcc3d8faa7cf0dadd061eea2da735a4987b79810507e5f043959
font_02_sfnt_off00011f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F4F 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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