Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a52956bd5674118…

MALICIOUS

PDF

74.4 KB Created: 2021-02-14 18:44:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 47a7b3aaebaf1638c7a018526a01539e SHA-1: 7395426d437bec05e7d9ab2d86e975ada37afdc7 SHA-256: 2a52956bd5674118feb7264009590b1abdbb76ec1b67d189b4fd76156d81d92c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs to a suspicious domain, masquerading as a search result. This URL is likely used to redirect the user to a phishing page or to download a malicious payload. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=what+text+structure+is+google+slides PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403951/normal_5ffce36d2a4cf.pdfIn PDF document text
    • http://pokypka.xyz/16846406954p4r43.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403807/normal_5fdfa894d2c03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372955/normal_601608cb70711.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381980/normal_601cfd0aca08f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424024/normal_5fe2e76994d4c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401697/normal_5fe0e050915b6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468261/normal_5fe0db43a72ec.pdfIn PDF document text
    • http://taher-tcac.com/6319829874973g58.pdfIn PDF document text
    • http://itasummer.fun/mega_unblocked_games_minecraftpmsgw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496607/normal_5fe560e634182.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477173/normal_60068173416a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480414/normal_5fd28f486ec9d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409417/normal_5fccbdcbdf0c2.pdfIn PDF document text
    • http://beautytopshop.site/georgia_hosa_competitive_events_guidelinesk8de8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lelirovosas.epizy.com/free_cyberghost_vpn_pro_apk.pdfIn PDF document text
    • http://relotetuje.rf.gd/lexererukodaro.pdfIn PDF document text
    • http://zerokafejedumij.rf.gd/80021099448.pdfIn PDF document text
    • http://vajowevub.epizy.com/40617510685.pdfIn PDF document text
    • http://jusekajuno.epizy.com/cambridge_audio_minx_xi_manual.pdfIn PDF document text
    • http://surifuj.rf.gd/20124423781.pdfIn PDF document text
    • http://ruludamena.epizy.com/kebujulejitebiguzawo.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_off0000e71a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71A 5280 bytes
SHA-256: 404e8d934ad484aa4d782a6e441a048ae15a9866a6d77d0344eb8c89758baa32
font_01_sfnt_off0000f917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF917 10276 bytes
SHA-256: 60e6a020801acf7b682338295a5af9d88524715ebcae9b6b2901e8ab0eae38ae

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