Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6ba6871a0d2ad7…

MALICIOUS

PDF

72.8 KB Created: 2021-03-23 21:20:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be0ed1c23d384271bb7b1836e08a987e SHA-1: 56a243f6f9d79a037526f936ce797cf8a3ba55e0 SHA-256: 2a6ba6871a0d2ad7ae4bb3ce186ae6257570db8e08709c44ec2eae9082d182c6
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. The embedded URL `https://lozipotod.ru/123?utm_term=ielts+test+report+form+to+university` is presented as an IELTS test report form, a common lure for phishing. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://lozipotod.ru/123?utm_term=ielts+test+report+form+to+university
    • http://bapefajavijofo.66ghz.com/73628206233.pdf
    • https://cdn.sqhk.co/soxobiwefili/ggjUP40/go_template_array_literal.pdf
    • https://cdn.sqhk.co/kiribikiv/heX7mjb/impossible_game_answers_19.pdf
    • http://lynciguest.com/tex_zippers_roorkeege7gg.pdf
    • https://cdn.sqhk.co/xubodijixali/iiOjfgq/basic_concepts_java_programming.pdf
    • https://cdn.sqhk.co/peluxisomex/rjfgcig/bbc_radio_2_500_words_2019_prizes.pdf
    • https://cdn.sqhk.co/tupizurelir/jbLhehd/dixie_damelio_song_lyrics.pdf
    • http://weinmvc.net/what_is_zero_shear_viscosity2ky2y.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rilexazejuzovep/74255117467.pdf
    • http://mozizilusonasij.epizy.com/siwifosimitalavufonuneg.pdf
    • https://s3.amazonaws.com/nowokil/finding_the_main_idea_and_supporting_details_worksheets.pdf
    • https://s3.amazonaws.com/zedudo/53070055164.pdf
    • http://jepexafowuxa.epizy.com/captain_marvel_comics_download.pdf
    • http://sikopenopod.epizy.com/51378478586.pdf
    • http://robowogutalopet.epizy.com/actualiser_les_formules_excel_vba.pdf
    • http://segidamilezuv.epizy.com/easter_card_inserts_templates.pdf
    • http://wirileso.epizy.com/english_conversation_dialogues_in_school.pdf
    • http://babokad.epizy.com/67742602064.pdf
    • http://lojupefiduk.epizy.com/najokimumelepuzavin.pdf
    • https://s3.amazonaws.com/fusopoxipo/71184759078.pdf
    • http://kufalogomisag.epizy.com/68105089251.pdf
    • http://seporuguwav.rf.gd/texemejetusifodejasarepup.pdf
    • https://s3.amazonaws.com/kubafezin/88096892839.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_off0000e1b9.bin
6c92ffea325636d55f5a0fb272fe8e8d3212fc9bb9dedfc2d30f7c1bb13c799e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B9 4936 bytes
font_01_sfnt_off0000f27c.bin
cc2dd676bd84f104660f4b07c00ce1dc669fe0c08896d6f9c2b1c0de49aaac6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF27C 10264 bytes

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