Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e07d131693bed52…

MALICIOUS

PDF

87.0 KB Created: 2021-03-21 23:40:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c97890ad82647e65c7a0eef4c52654d4 SHA-1: 78decea78d2e08d4f614033d555c64962847760f SHA-256: 9e07d131693bed52a4bb9f1f890800fbf95da9dcb45247dc9875ab46974f32e1
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with ClamAV specifically flagging it as Pdf.Phishing.Trojan. The embedded URL points to a suspicious domain, likely intended to host malicious content or phishing pages. The document's content, though partially obfuscated, suggests a lure related to educational material.

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://botokaw.ru/wix?keyword=astronomy+study+guide+9th+grade
    • http://rixorevu.getenjoyment.net/cordell_designing_audio_power_amplifiers.pdf
    • https://weduparazibad.weebly.com/uploads/1/3/4/7/134710999/jagulaxukifoz_pidadujure_bujake.pdf
    • http://verefdliyvtorogo.xyz/super_start_power_pack_how_to_charge6npf9.pdf
    • http://ledimpress.biz/37529390175p6i25.pdf
    • http://pevojatinolotej.22web.org/free_adjectives_worksheets_for_1st_grade.pdf
    • https://cdn.sqhk.co/vilonunufuk/WjijbOI/world_war_heroes_hack_dinheiro_infinito_2020.pdf
    • https://cdn.sqhk.co/porekige/jdidSgh/where_s_my_water_2_play_online_free.pdf
    • http://aydym.club/ill_be_gone_in_the_dark_netflix_ukjf1tu.pdf
    • https://cdn.sqhk.co/xufuwejaxe/bUjfsjg/wagevimaxawiv.pdf
    • http://bcpzonasegurape2-viabcp.com/multiplication_worksheets_for_1st_gradekg7n9.pdf
    • https://polavimiwusirew.weebly.com/uploads/1/3/2/6/132681763/kasubemo_gawolodidufisu_zonexovolekiruf.pdf
    • https://cdn.sqhk.co/bezupidokaz/rUH8jbe/55597097442.pdf
    • https://cdn.sqhk.co/texekikevow/ilxLhaJ/pawemo.pdf
    • http://mavigawika.scienceontheweb.net/introduction_to_medical_terminology_book_answer_key.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gavapozalilup/23344542482.pdf
    • http://bifovigavij.myartsonline.com/wilorane.pdf
    • http://zudupaxub.myartsonline.com/taco_bell_nutrition_soft_taco_supreme.pdf
    • https://s3.amazonaws.com/tuxexi/xepiwajukozivefuj.pdf
    • https://s3.amazonaws.com/jojitagifuva/xupugowaraxuduj.pdf
    • http://bamonoxo.onlinewebshop.net/palovobom.pdf
    • http://tutureluxusedak.epizy.com/44071006155.pdf
    • http://wexugemo.epizy.com/27240009063.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_off000114c7.bin
d040ce6965102b14c4c0b03be3f1c555f71783f74a4b0dcbc83433a03cc71766
pdf-font-stream PDF embedded font (sfnt) at offset 0x114C7 5452 bytes
font_01_sfnt_off0001272e.bin
49a2fd35e7d99060f79faa9c155df249558e789441882cbaff2ecffaf680a887
pdf-font-stream PDF embedded font (sfnt) at offset 0x1272E 11564 bytes