Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0e9bfd1b1a2532f…

MALICIOUS

PDF

83.9 KB Created: 2021-05-15 22:25:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f5dac589bec072ba1fa59b9ab323ad8e SHA-1: ce6c1fbf7f195f95ed6b33e710f31bb93001dab3 SHA-256: a0e9bfd1b1a2532f233bb5fbd4cce9fff32a7e37ee89a91bddc66db19debecf4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, 'golowaki.ru', which is likely used to host a phishing page or distribute further malware. The document body, though heavily obfuscated, suggests a lure related to 'sociological imagination examples quizlet', aiming to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://golowaki.ru/strik?utm_term=sociological+imagination+examples+quizlet PDF link annotation
    • https://cdn.sqhk.co/saxezekobida/PmgdOic/youtube_like_video_player_in_jquery.pdfIn PDF document text
    • https://cdn.sqhk.co/pabukerofo/iJgchj5/janawexomajubejalosuketa.pdfIn PDF document text
    • https://cdn.sqhk.co/bexutavukaro/yusiarc/one_clue_crossword_chapter_41_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/zezetemirag/dhdpXgf/eye_of_the_beholder_2_character_creation.pdfIn PDF document text
    • https://cdn.sqhk.co/dagufiwus/j2hahdX/vimurubulewilepap.pdfIn PDF document text
    • https://cdn.sqhk.co/ropimipaf/eidicAJ/descargar_repair_battery_life_pro_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/navififoro/R3oZpCx/ivry_hall_alabama.pdfIn PDF document text
    • https://cdn.sqhk.co/rufomezin/haiewih/musica_italiana_clasica.pdfIn PDF document text
    • https://cdn.sqhk.co/pepupiribojo/admqja7/light_up_mirror_vanity_small.pdfIn PDF document text
    • https://cdn.sqhk.co/rebamomidaw/jjPjf10/geometry_dash_world_download_free.pdfIn PDF document text
    • https://cdn.sqhk.co/domuduxuro/iUjhWyS/11591703321.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/64662490-53c2-4ed9-a76a-8a6f0dbcb8c6/34729135236.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/16243082544.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/13765562753.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/biostatistics_quiz_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/34900070459.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cd00070-de3a-4dce-a88d-2858f38b7647/feelings_wheel_for_adults.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/labimedi.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/mortal_kombat_10_android_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/soxiwapatox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82bcd9b8-d859-4c59-a715-0d6e0cc796a5/ls-dyna_r11_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a218e74-4f5e-4cab-950a-4627ada70e20/30925073594.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_off00010727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10727 5504 bytes
SHA-256: 93f3ef4e11b2decd32183f497ec55a57eba6089083901d00ceb4932e04aad197
font_01_sfnt_off000119df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119DF 11192 bytes
SHA-256: c7c597b2c53c7f2a809d5172a94f787209f00be61ca6fe82688218aefeb5ac31

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