Malicious PDF — malware analysis report

Static analysis result for SHA-256 4017b9e462bea995…

MALICIOUS

PDF

86.4 KB Created: 2021-03-15 21:42:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 650b08392817da5b0b2ca1b165fbefe6 SHA-1: 49946b1d38ca66d294ac295c3cd77fe452f27c9f SHA-256: 4017b9e462bea995595c20096aea86950b4e3c7239ecc94728b548f2bba6cd97
136 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that mimics a coupon code offer, a common lure for phishing or malware distribution. The 'SE_REMOTE_SUPPORT_LURE' heuristic indicates the document may also attempt to trick users into installing remote support tools. The ML classifier and ClamAV detection strongly suggest malicious intent, likely involving the download of a second-stage payload via the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://xezojetit.ru/wix?keyword=wish+coupon+promo+codes+2020+australia
    • http://gatowixipeba.mywebcommunity.org/intex_sand_filter_pump_instruction_manual.pdf
    • http://lokubakodo.getenjoyment.net/thermodynamics_book_for_mechanical_engineering_download.pdf
    • http://logmeinnow.xyz/gidejorekudugipamonenatg6aj1.pdf
    • http://ruwufuwetoj.mygamesonline.org/5579819727.pdf
    • https://cdn.sqhk.co/puvivefujef/jehfdHx/sabado_y_domingo_son_dias_habiles.pdf
    • http://ig-copyrightnoticehelp.com/plan_de_trabajo_para_celebrar_la_navidad_en_preescolarje10g.pdf
    • https://cdn.sqhk.co/zubavagi/5UJqCDP/driving_zone_2_mod_apk_android_1.pdf
    • http://fawikenaxalu.scienceontheweb.net/77327699260.pdf
    • http://epipog.com/likee_login_accountyuer5.pdf
    • http://file-id.ru/safejazubudorisukusegot23sc8.pdf
    • https://dapalijika.weebly.com/uploads/1/3/0/7/130738969/81d28b9f0a6.pdf
    • http://kixurox.getenjoyment.net/most_common_korean_words_and_phrases.pdf
    • http://tevfikyuce.xyz/free_download_quran_with_bangla_translationt70ve.pdf
    • http://dotenipago.medianewsonline.com/61505625637.pdf
    • https://jakigirizog.weebly.com/uploads/1/3/1/4/131453624/f82d7f3f0d.pdf
    • https://jawogebewo.weebly.com/uploads/1/3/4/3/134369376/7609516.pdf
    • https://nusutaligufobam.weebly.com/uploads/1/3/5/3/135393176/raverefabawatame.pdf
    • http://loduwij.scienceontheweb.net/ankylos_implants.pdf
    • https://cdn.sqhk.co/zalivelo/jeDgd2G/project_management_software_for_mac.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rivenoke.onlinewebshop.net/vidunavakezugolubabalafi.pdf
    • https://s3.amazonaws.com/midipes/contoh_proposal_skripsi_ahwal_syakhshiyyah.pdf
    • http://jaxunukologefis.onlinewebshop.net/92205252300.pdf
    • https://s3.amazonaws.com/nuxepiduded/bba_course_ka_full_form.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_off00011148.bin
d6a272a2df9341070cd084d19a589033ed42620f07f3c5e96dde0980541b6958		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11148 5600 bytes
font_01_sfnt_off00012431.bin
a558462f07e72a12d5df78ad40eb52a6b74288da6b970b21b011f900427e21ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12431 11796 bytes

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