Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5ad112edc9f8a2d…

MALICIOUS

PDF

73.2 KB Created: 2021-03-22 19:48:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f52769db015fe3e59bdb3175ab7d14fd SHA-1: 713a251b7850822de227f5c88c7d514db03246d5 SHA-256: d5ad112edc9f8a2d273dd0299f17b4fe647ab7bc4534907a0f11e7fcabb09e2d
96 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://xezojetit.ru/wix?keyword=creme+savers+hard+candy', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of embedded URLs indicates an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xezojetit.ru/wix?keyword=creme+savers+hard+candy
    • http://kafikiwamavo.22web.org/16187205950.pdf
    • https://cdn.sqhk.co/xekemini/jaifOhe/guess_the_biscuit_picture_quiz_uk.pdf
    • https://cdn.sqhk.co/lebereme/ijCjfjc/woodworking_projects_for_baby_gifts.pdf
    • https://cdn.sqhk.co/tosilura/dyGhhja/wolfenstein_2_courthouse_i_am_death_incarnate.pdf
    • http://dunizajo.66ghz.com/european_glaucoma_society_guidelines_2014.pdf
    • http://zemixubekuj.22web.org/aws_certified_solutions_architect_study_guide_associate_saa_c01_exam.pdf
    • http://libifutolile.iblogger.org/capresso_espresso_machine_instructions.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kutunerepupikib.epizy.com/neil_degrasse_tyson_famous_speech.pdf
    • http://bomapogixojepo.epizy.com/first_book_in_dorothy_must_die_series.pdf
    • http://ramogefakox.rf.gd/10195655424.pdf
    • http://tugojan.rf.gd/bedevilled_movie_480p.pdf
    • http://ruzupaxenerod.epizy.com/answer_love_yourself_letra_en_espaol.pdf
    • http://naxadib.rf.gd/digital_marketing_manager_average_salary_london.pdf
    • http://sedabil.epizy.com/weight_watchers_points_guide.pdf
    • http://guruwemuzotal.epizy.com/54695181379.pdf
    • http://bikemeno.rf.gd/bivupesirinuvajop.pdf
    • http://viziboxovuw.rf.gd/16119479299.pdf
    • http://bubomikofar.epizy.com/pascal_wager.pdf
    • http://dapogilobanonop.rf.gd/export_to_word_adobe.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_off0000e008.bin
5694334e60b03ae297ee4488e278f0b4ad57129589946b7cb51c7f56a5afd117		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE008 5216 bytes
font_01_sfnt_off0000f19d.bin
f4d7f63d8d7b2c3bf7a146632e8a44aaf87643b7aae45e28d8100b54283c8e8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF19D 11276 bytes

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