Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7cdb2ad8f2ad59…

MALICIOUS

PDF

85.2 KB Created: 2021-05-19 01:17:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e67e7693dcdadfecc8bb343a4176f7c SHA-1: 9121b0aae269d3a2a802f81143fa21c9351af9aa SHA-256: 2e7cdb2ad8f2ad591c73d59b295751a8fd82d91d53b65253301c755a51b92c51
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The presence of an external URI suggests an attempt to redirect the user to a malicious site, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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/strik?utm_term=what+does+igf+1+lr3+do
    • https://cdn-cms.f-static.net/uploads/4424991/normal_5fd276896febc.pdf
    • https://static.s123-cdn-static.com/uploads/4449185/normal_5fc8b0dd17271.pdf
    • http://xejevojesinil.22web.org/77486905641.pdf
    • https://cdn-cms.f-static.net/uploads/4414701/normal_60240c348f16a.pdf
    • https://cdn-cms.f-static.net/uploads/4478132/normal_606de53b1d4d4.pdf
    • http://pitupunum.iblogger.org/letter_m_worksheet.pdf
    • https://cdn-cms.f-static.net/uploads/4454681/normal_606e8af904373.pdf
    • http://xuwiropexij.iblogger.org/71978513732.pdf
    • https://static.s123-cdn-static.com/uploads/4419236/normal_5ff55c95884c2.pdf
    • https://static.s123-cdn-static.com/uploads/4505771/normal_60027680a6246.pdf
    • https://static.s123-cdn-static.com/uploads/4412151/normal_5fc610edc115e.pdf
    • http://vamekujo.66ghz.com/oci_application_form_australia.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/47965481-48d8-43a6-bb63-4d8f3325da74/ximekinisibamak.pdf
    • https://uploads.strikinglycdn.com/files/00631242-f844-4529-b5ce-fec189157964/19336751058.pdf
    • https://uploads.strikinglycdn.com/files/02ceba38-55ea-4a2d-9ab7-5837eaea7480/new_2020_lexus_rx_350_f_sport_for_sale.pdf
    • https://uploads.strikinglycdn.com/files/8f25e1f2-00a1-47bb-b817-eeedf22b6cad/falujoxufuvab.pdf
    • https://uploads.strikinglycdn.com/files/43ebd685-8fdd-454b-ad13-e03836ef2867/bisetepaxiluximizikizodag.pdf
    • https://uploads.strikinglycdn.com/files/a3f93801-71dc-4ef9-b880-e712594c7cee/99944681955.pdf
    • https://uploads.strikinglycdn.com/files/d6306477-862b-476b-a9d2-0dd133b0b4af/berserk_manga_art_style_change.pdf
    • http://pafaxifusawa.rf.gd/best_universities_for_control_systems_engineering.pdf
    • https://uploads.strikinglycdn.com/files/3de47f16-b286-4575-971d-aad236cb8d0c/purekebipedivaduvukekinod.pdf
    • https://uploads.strikinglycdn.com/files/0bceaec2-2696-458b-aa5f-2c37c5dcf0e4/tisiritipoxikixizixumuz.pdf
    • http://rivapuremamoge.epizy.com/behringer_xenyx_1202fx_mixer_manual.pdf
    • http://witoluteg.epizy.com/5878454328.pdf
    • http://tirujukixiw.epizy.com/formato_renovacion_camara_de_comercio_barranquilla.pdf
    • http://xixelenagogebaz.epizy.com/remember_remember_the_5th_of_november_poem.pdf
    • https://uploads.strikinglycdn.com/files/2080fc1c-4e1b-415c-814d-0d444c910fc5/kenmore_he2_plus_washer_error_code_f01.pdf
    • http://kalijumixu.epizy.com/apsrtc_app_smartphone.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_off00010e14.bin
3a1633df434024ad07ea5933867a5bd24dd7b5fd58847f39589b57ca4b39d13c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E14 5400 bytes
font_01_sfnt_off00012080.bin
2a13edc8db13b6ede2ee6695de278b6d7e4b1b9dfebb89fc6ea0c49c7feb0213		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12080 11504 bytes

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