Malicious PDF — malware analysis report

Static analysis result for SHA-256 be87fca44cffbe0f…

MALICIOUS

PDF

66.3 KB Created: 2021-03-08 13:33:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 003d19e96f960fddea6ea5b431c30296 SHA-1: 44ac1afc49918dedc490469060d1d88de6564da0 SHA-256: be87fca44cffbe0fcb28e3c397294ee7dfea2b7aa859b5f567da4e0e206378af
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains embedded URLs that lead to external websites, likely for phishing or malware distribution. The presence of these URLs and the overall detection score suggest the file is designed to trick users into visiting malicious sites, potentially as part of a phishing campaign.

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://mezovuduw.ru/wix?keyword=myplate+crossword+puzzle+answer+key
    • http://myfoxing.online/bebupaxoboroganuxphsx.pdf
    • https://puvomowaja.weebly.com/uploads/1/3/4/3/134318832/1b364ba165.pdf
    • https://cdn.sqhk.co/mevazasid/G71jdja/reincarcare_cartela_vodafone_cu_cardul.pdf
    • https://cdn.sqhk.co/jesovolavig/jbyNjb3/neighborhood_credit_union_dallas_routing_number.pdf
    • https://zegaturivelegob.weebly.com/uploads/1/3/1/4/131437779/vadoba.pdf
    • http://bejawutipage.mywebcommunity.org/agamben_livros.pdf
    • https://static.s123-cdn-static.com/uploads/4462696/normal_5fc7a806eae8e.pdf
    • http://alfa-quest.ru/saysal_tasarm_ders_notlar7kxq8.pdf
    • http://scotiaenlineape-personas.com/best_premier_protein_drink_flavorspx6qo.pdf
    • https://tipuvativojodud.weebly.com/uploads/1/3/4/7/134754547/9327155.pdf
    • http://raponikidosal.getenjoyment.net/my_tv_is_120hz_but_shows_60hz.pdf
    • https://jagusidenoz.weebly.com/uploads/1/3/4/9/134902343/duribagon_tevonaxav.pdf
    • http://smartradiobf.ru/tavenuragukobefisg2jg.pdf
    • http://losmopaka.site/design_fmea4fy72.pdf
    • https://vopisozojozesa.weebly.com/uploads/1/3/1/4/131407388/966738.pdf
    • http://bilkan.fun/mathematics_for_machine_learningo40v8.pdf
    • https://cdn-cms.f-static.net/uploads/4453103/normal_602e6f30dd793.pdf
    • https://cdn-cms.f-static.net/uploads/4490273/normal_603fa4bb34645.pdf
    • http://clobuss.ru/wheel_scale_apk_download3e33s.pdf
    • http://golden-bridge.pro/95073198776pnwnp.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tikomiwewo.atwebpages.com/difference_between_synthesize_and_summarize.pdf
    • http://tavamikilav.myartsonline.com/sony_rx10_iv_manual_focus.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7e4.bin
f695ee4d707fc8f488e92dbc767af5386faf0d4e353c7286bafb203aedcdf501
pdf-font-stream PDF embedded font (sfnt) at offset 0xC7E4 5380 bytes
font_01_sfnt_off0000da66.bin
e44ff43a8401b563cf936292227012519fdc78384580444ff62fb9a6b595806c
pdf-font-stream PDF embedded font (sfnt) at offset 0xDA66 9812 bytes