Malicious PDF — malware analysis report

Static analysis result for SHA-256 f83ef3f0c5498855…

MALICIOUS

PDF

69.6 KB Created: 2021-02-27 02:27:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a12674a373eb1f8718eab95aa76e8220 SHA-1: c4dcfa7c780a3d22bbe546b9a7de8c5a44bf481b SHA-256: f83ef3f0c5498855ea9fc15fa294bc6758d88e5ed70d3430d10d74f078995a0d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/award?keyword=craftsman+15+amp+7+1+4+circular+saw+with+laser+trac PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369794/normal_6005529e4f5d0.pdfIn PDF document text
    • http://tafugegajotu.mygamesonline.org/acer_aspire_e15_windows_10_installieren.pdfIn PDF document text
    • https://cdn.sqhk.co/kafevinuva/Fagehfp/libid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484154/normal_5ffd55f418f6f.pdfIn PDF document text
    • http://zajowidased.iblogger.org/autocad_2007_windows_10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387581/normal_5fe2d4df5640b.pdfIn PDF document text
    • http://jipuvojenibomig.22web.org/lulavonikometad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486537/normal_5fd31a19600a0.pdfIn PDF document text
    • https://cdn.sqhk.co/fekigimuzib/2Pa3icX/redsun_rts_premium_full_apk.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/daramonogakotep.pdfIn PDF document text
    • http://midikakuvekume.mywebcommunity.org/thule_roof_rack_bike_attachment.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/how_to_install_a_new_lawn_mower_battery.pdfIn PDF document text
    • https://cdn.sqhk.co/dijogiper/wf9iajd/addons_for_minecraft_app_store.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/GibXji6/bisodeligerivideme.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lisodibediv.epizy.com/schwartz_principles_of_surgery_absite_review.pdfIn PDF document text
    • http://fusutunililafu.epizy.com/47694825690.pdfIn PDF document text
    • http://woniladorunuf.epizy.com/gatedefotaselerawenez.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/ibps_po_result_2019_ibps_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/gomimudego.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/guided_meditation_samsung_vr.pdfIn PDF document text
    • http://wubavon.epizy.com/hourly_schedule_template_free.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_off0000d43a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD43A 5596 bytes
SHA-256: 4a6baf7e748d82deced0cd370e1da7b789cf6f8a2dfaf97eaf79a210b19e49f9
font_01_sfnt_off0000e73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73D 9892 bytes
SHA-256: 19abf9cb7e768e20d90b6e52c697e0d9fbdfd1b872c89db74fe1bb9131563668

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