Malicious PDF — malware analysis report

Static analysis result for SHA-256 51960bb8165ea3e5…

MALICIOUS

PDF

67.7 KB Created: 2021-02-08 16:22:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fa991b8d519a4f90fe7d738a945992bf SHA-1: 2d49dcbd3c7480b8ed03082c268d8279ef2260c0 SHA-256: 51960bb8165ea3e5970709ec3541c3d94b3141190fd336fefa1e2265c37edab0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wb?keyword=report%20lost%20emirates%20id%20online PDF link annotation
    • https://fejejupusojovif.weebly.com/uploads/1/3/1/4/131483068/pogaju.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393483/normal_5fd04c4d82d9d.pdfIn PDF document text
    • https://vuduzilir.weebly.com/uploads/1/3/1/8/131857383/b5b197.pdfIn PDF document text
    • https://jazediwugitali.weebly.com/uploads/1/3/4/7/134730671/tobelusivewaw.pdfIn PDF document text
    • https://zubefexer.weebly.com/uploads/1/3/1/6/131606337/001ec6f32068a.pdfIn PDF document text
    • http://xaninivinekeni.iblogger.org/abp_news_live_tv.pdfIn PDF document text
    • https://molawakipo.weebly.com/uploads/1/3/1/3/131379716/tideparomuzazonan.pdfIn PDF document text
    • https://nidegezepon.weebly.com/uploads/1/3/4/6/134650885/af0cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420037/normal_60121d1be85e4.pdfIn PDF document text
    • http://nemeloru.66ghz.com/sofajirigukajarox.pdfIn PDF document text
    • https://wilukogata.weebly.com/uploads/1/3/5/3/135388132/zugep_kawizesave_mogibudadu_minulupe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367625/normal_5fceda95aff90.pdfIn PDF document text
    • https://jigukijovumide.weebly.com/uploads/1/3/0/7/130740363/liwafetowotive.pdfIn PDF document text
    • https://renobikedasel.weebly.com/uploads/1/3/4/8/134897329/rubamuzolugaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bewebumaxof.epizy.com/emulateur_android_plus_leger.pdfIn PDF document text
    • http://danijikuguwidak.rf.gd/google_sheet_goal_seek.pdfIn PDF document text
    • http://mimonutemabase.epizy.com/regedipuzodatafovirefig.pdfIn PDF document text
    • http://vekoxoke.epizy.com/editable_shadowrun_5_character_sheet.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_off0000ccf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF5 5112 bytes
SHA-256: 08b65f4189b85a6d6fa15246ed3c68cdcd03e26545690ccd2e36243140e3fb98
font_01_sfnt_off0000de3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE3F 10512 bytes
SHA-256: 7a7f7ff87c991b4a074f6ba073170adc24ab5ed70785e514242a37ef60637a24