Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97706b6727febce…

MALICIOUS

PDF

69.2 KB Created: 2021-03-09 21:32:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78f21bc2494fdcc2fb1cda614f61458b SHA-1: 55cc67a578c06357f25b4113ade2dd91981158b4 SHA-256: e97706b6727febce1d11e195952a89d7435f2f501748234ac1c79fc928cef877
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1190 Exploit Public-Facing Application

The file is identified as malicious by ML classifiers and ClamAV, with a high heuristic score for MFA/credential harvesting lures. The embedded URL `https://soxebez.ru/wix?keyword=business+income+and+extra+expense+worksheet` suggests a phishing attempt disguised as a business worksheet. While no scripts were explicitly extracted, the PDF structure and the nature of the lure indicate it's designed to trick users into submitting sensitive information, likely for credential theft or session hijacking.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://soxebez.ru/wix?keyword=business+income+and+extra+expense+worksheet
    • http://50offit.pro/73691573816zfvz2.pdf
    • https://bipekafus.weebly.com/uploads/1/3/0/7/130776646/vataf.pdf
    • http://zikewexer.scienceontheweb.net/the_devil_take_the_hindmost_meaning_in_urdu.pdf
    • https://cdn-cms.f-static.net/uploads/4424013/normal_600abb8e826cd.pdf
    • http://nikibolerobika.getenjoyment.net/sofufejimakakoga.pdf
    • https://static.s123-cdn-static.com/uploads/4409236/normal_5fe4365acf47b.pdf
    • https://tezifotunojoke.weebly.com/uploads/1/3/0/7/130776805/getofizaxek-zosoz-kezok.pdf
    • https://static.s123-cdn-static.com/uploads/4450356/normal_5feba11cf3f1b.pdf
    • https://gegovowazuravas.weebly.com/uploads/1/3/1/3/131398401/wamirivaxamitabaj.pdf
    • https://static.s123-cdn-static.com/uploads/4493578/normal_5fc8819780e74.pdf
    • http://dusamoka.mywebcommunity.org/judith_butler_gender_trouble_sparknotes.pdf
    • https://cdn-cms.f-static.net/uploads/4468837/normal_60417b6c1e812.pdf
    • http://moresukko.ru/xexinejamavedasepijimoxy2z55.pdf
    • https://dixapixukezawe.weebly.com/uploads/1/3/5/3/135388261/zebudo_ritawagofejakip_senibi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/74423dd1-3480-482f-84ab-9ae82b35a79e/30868874232.pdf
    • http://zijiwaras.onlinewebshop.net/ana_gabriel_30_grandes_exitos_descargar_gratis.pdf
    • http://vexabimumemig.atwebpages.com/thinkorswim_fees_penny_stocks.pdf
    • https://uploads.strikinglycdn.com/files/6ebfb363-cb86-4f97-99cf-8772e376c6f3/harry_potter_and_the_sorcerers_stone_book_pages.pdf
    • https://uploads.strikinglycdn.com/files/ae5e92c5-c3f9-4ba5-afc5-9bbfa5327b4b/install_logitech_f710_windows_10.pdf
    • http://fidalanono.myartsonline.com/bokeva.pdf
    • https://uploads.strikinglycdn.com/files/9ff18b9d-124c-4f15-befd-d2c2e9ddf493/how_to_sell_trading_cards_online.pdf
    • https://uploads.strikinglycdn.com/files/d7c0d393-6ff7-4350-8674-2a56edf8bb88/21869061116.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_off0000d1ec.bin
a102463cd21838eedab3132cbb7ab7fa07416ba9bf83e26fbe037aeec465ab34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1EC 5552 bytes
font_01_sfnt_off0000e4bc.bin
7cd868efe76261af3c07350cd945e2bf96e3d72c3edc93ee6ba5fdda264c8e00		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BC 10080 bytes

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