Malicious PDF — malware analysis report

Static analysis result for SHA-256 81bd0353c89aa154…

MALICIOUS

PDF

71.0 KB Created: 2021-03-05 04:03:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 230e6354ddcc3a15fe380662fa191122 SHA-1: 803a43a16b50ad43c2888fb7873bb35a22fec3fb SHA-256: 81bd0353c89aa1547e15c959df83149d47260f9b47f0bed90bed589aa1ed3741
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://pelibifir.ru/award?keyword=pablo+neruda+love+poems+i+crave+your+mouth PDF link annotation
    • https://mapokelamoda.weebly.com/uploads/1/3/1/8/131856574/fopenedeluwilura.pdfIn PDF document text
    • http://vazupuvid.iblogger.org/chemical_engineering_thermodynamics_course.pdfIn PDF document text
    • https://ratipixudaxixix.weebly.com/uploads/1/3/4/4/134472160/xilemewenexu.pdfIn PDF document text
    • https://zizusufake.weebly.com/uploads/1/3/4/6/134646877/1882856.pdfIn PDF document text
    • http://xawexusinuzo.22web.org/committed_home_care_timesheets.pdfIn PDF document text
    • https://cdn.sqhk.co/latusetime/6giih7N/vutadeganewezebojirexo.pdfIn PDF document text
    • https://govonomuvilikiw.weebly.com/uploads/1/3/4/6/134620083/raferexoxuz.pdfIn PDF document text
    • http://xotizel.iblogger.org/77222198417.pdfIn PDF document text
    • https://cdn.sqhk.co/kunutewiwit/Wjeihhj/kididoma.pdfIn PDF document text
    • https://juxilejaguzu.weebly.com/uploads/1/3/4/4/134404551/8022609.pdfIn PDF document text
    • https://cdn.sqhk.co/tewisifupib/ghcUxI7/zombie_hunters_arena_unblocked.pdfIn PDF document text
    • http://fegudifo.22web.org/nulirejodatutatowakoxuvog.pdfIn PDF document text
    • http://nususolajegak.iblogger.org/20272817310.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bugudejekizukem.epizy.com/kerobobobolifexonadovi.pdfIn PDF document text
    • http://zuxekesimulir.epizy.com/3200390645.pdfIn PDF document text
    • http://suzowow.rf.gd/nisimuvusakupajinotufan.pdfIn PDF document text
    • http://wesokukukidi.epizy.com/how_to_turn_off_honeywell_heater.pdfIn PDF document text
    • http://zoxokukazo.epizy.com/39976555889.pdfIn PDF document text
    • https://f26e6bca-ce10-4524-9610-ed5ef7c8d48b.filesusr.com/ugd/ac8c68_5871b5467e764aa1ba6c589bcc556caa.pdf?index=trueIn PDF document text
    • http://fafamofuwinofen.epizy.com/sony_xplod_car_stereo_price_list.pdfIn PDF document text
    • http://baduwujik.rf.gd/chrome_os_launcher_android.pdfIn PDF document text
    • https://e0d0d77b-4c00-4265-bc22-f0cc5cf11ada.filesusr.com/ugd/957eb4_ecc1cb69d72d48c4b0b1141c70b85b22.pdf?index=trueIn PDF document text
    • http://tidewoxawutose.epizy.com/memorandum_and_articles_of_association_template.pdfIn PDF document text
    • https://16e729f2-8c5c-4787-b670-14aeba6c5e03.filesusr.com/ugd/ac55e2_ca017cb6b79b4b56a38d111ca52c8c68.pdf?index=trueIn 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_off0000d77b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77B 5616 bytes
SHA-256: ad4d79fb8829cc708ef1d20902831fffee7e6d0f633f2894bb21b84e8aa93669
font_01_sfnt_off0000ea6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6E 9960 bytes
SHA-256: bdfba855747103896479cb453e06e89a79be04fbe68bad933e0f1cea85f8f77b

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