Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa0d50a2dcf99ad2…

MALICIOUS

PDF

65.9 KB Created: 2021-04-08 09:58:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98ea3ff8156eebe9ce4ac8dacfa3baaf SHA-1: 443520563e572dbaacad6f63c47683a869f2c63a SHA-256: fa0d50a2dcf99ad299bc59b53357c29e4e95d502f7f202769e3e9d1f48c405ac
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an external URI pointing to a suspicious domain, likely used for phishing or to serve a second-stage payload. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/wix?keyword=glencoe+health+lesson+quiz+12+answers
    • http://peuly.xyz/numisezebuwodfskuh.pdf
    • http://nicepics.xyz/jelotitunu872w6.pdf
    • http://ejinaya.com/4043234008wt62w.pdf
    • http://burrrhey.tech/nafiposemunapofolezeiuhfx.pdf
    • http://podipotekoi.ru/control_systems_inc_buford_ga3yivq.pdf
    • http://static-get.top/90970865906altg6.pdf
    • https://cdn.sqhk.co/kuwusemob/qCyRcJP/fdic_call_report_glossary.pdf
    • http://copyrightsupportforlnstagram.com/my_talking_angela_download_gamepjoz0.pdf
    • http://zatutajijiti.getenjoyment.net/thomas_calculus_2_12th_edition_trke.pdf
    • http://jojidasusesot.sportsontheweb.net/nuvakowezazolisafu.pdf
    • https://cdn.sqhk.co/rasirise/FicMzgd/xuxanegemetavaw.pdf
    • http://thefortykuti.com/aulas_de_espanholz9kc4.pdf
    • http://soldonlakewood.com/top_rated_shark_vacuum_2020fj39m.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jadere/free_html_css_templates_for_personal_website.pdf
    • https://s3.amazonaws.com/wujapu/manualidades_de_reciclaje_para_nios_de_kinder.pdf
    • https://s3.amazonaws.com/wewiro/gta_5_mod_apk_aptoide.pdf
    • https://s3.amazonaws.com/luxaduzimase/mowudowewavifexat.pdf
    • https://s3.amazonaws.com/zexozavo/deviantart_meme_template.pdf
    • https://s3.amazonaws.com/xamibudasagas/limiting_reagent_and_percentage_yield_worksheet.pdf
    • http://jifisuxevizek.myartsonline.com/theraband_exercises_for_elderly.pdf
    • https://s3.amazonaws.com/befafuni/47459328038.pdf
    • http://rususekobijo.myartsonline.com/vunijawozutiwiva.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_off0000c50f.bin
3536706f182b373a988275195572479e36a41fd9cb4a4ed8db1b91f9dad454dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC50F 5368 bytes
font_01_sfnt_off0000d774.bin
b344f09220ce60758adf3eefd2a77e7c0678d3a2931c8392c7ba130894507be7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD774 10192 bytes

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