Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d71b314a0f2c934…

MALICIOUS

PDF

79.0 KB Created: 2021-03-30 02:44:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 0169ee976fa925d12bee7723bddaf58f SHA-1: 7d2e9a72ebb334e89a11010554ecedcaff00b279 SHA-256: 6d71b314a0f2c93464e1058d25beee20fde9fc8b878960396dbb299d7e8a115f
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains an embedded URI pointing to 'leonvi.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to a 'desire map planner'. No scripts were extracted, but the presence of external URIs indicates an attempt to redirect the user to a malicious resource.

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://leonvi.ru/wix?keyword=the+desire+map+planner+pdf PDF link annotation
    • http://supsun-aero.com/94422758180paya9.pdfIn PDF document text
    • http://ewop.space/imdb_deadpool_2_parents_guidevj4ls.pdfIn PDF document text
    • http://bimadepunepi.mypressonline.com/tesis_de_energias_alternativas.pdfIn PDF document text
    • http://bivoliku.mywebcommunity.org/campagne_de_publicit.pdfIn PDF document text
    • https://cdn.sqhk.co/fezusife/UdigifT/pokemon_home_pokemon_go_meltan.pdfIn PDF document text
    • http://lalashoppen.online/139603715761l8vb.pdfIn PDF document text
    • http://voirly.xyz/how_to_interpret_ratiow469j.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/ijdggc1/59113380380.pdfIn PDF document text
    • http://italywow.space/obras_de_empedoclesr0mww.pdfIn PDF document text
    • http://borejukeluteva.mygamesonline.org/xabetaxaz.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • http://reduslimitalia.site/lecture_ready_3_second_edition_answer_keyp00b1.pdfIn PDF document text
    • http://bosuxezaxad.mypressonline.com/95408586505.pdfIn PDF document text
    • http://leopards.space/tybcom_auditing_notes_in_marathi1raxz.pdfIn PDF document text
    • http://tpdreport.com/how_to_deal_with_conflict_in_a_multicultural_classroomot0om.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/23418799657.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/20009454509.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/32874939845.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/what_is_an_event_tag.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/zaxogisogad.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6B3 5228 bytes
SHA-256: da170f5cf1035a786d45347a8bd3a4541fa7c86bbdccad087985c91e4758b672
font_01_sfnt_off00010849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10849 11316 bytes
SHA-256: fe294592da6d8754450f6f190f8012886e93f0c5e5ad7909d8f55d3206202b66

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