Malicious PDF — malware analysis report

Static analysis result for SHA-256 24b72c28ae610428…

MALICIOUS

PDF

78.1 KB Created: 2021-05-15 12:02:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: f888c98bbfae7d5f4c803e2fe3adf904 SHA-1: 8951d4e19520056c9a53ac9fd0b33b2453a0a2fe SHA-256: 24b72c28ae610428ca8f5f0e92493665b15a1155da98002c3225ee0e5c58ed66
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/strik?utm_term=what+are+the+service+intervals+for+a+ford+fiesta PDF link annotation
    • https://cdn.sqhk.co/vipujitebiki/bhfLhfM/84823836988.pdfIn PDF document text
    • http://gejesixave.scienceontheweb.net/interior_design_course_melbourne_tafe.pdfIn PDF document text
    • https://cdn.sqhk.co/xizubutagen/ippIWjh/family_s_game_travel_pack_apk_full_version.pdfIn PDF document text
    • https://cdn.sqhk.co/nujizeres/GhaEjfO/bubble_blowing_fire_engine.pdfIn PDF document text
    • http://poguzozod.sportsontheweb.net/aran_sweater_pattern.pdfIn PDF document text
    • http://jipetabonitu.mywebcommunity.org/tutorial_adobe_premiere_cs3_bahasa_indonesia.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/b9c8758a-85a4-4b8c-acf4-3abc123537b5/english_language_courses_for_adults_in_uk.pdfIn PDF document text
    • http://fepetixapokurob.myartsonline.com/thinkorswim_fees_singapore.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/tipos_de_investigacion_cientifica_segun_hernandez_sampieri.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/leranemeji.pdfIn PDF document text
    • http://pozijawikubinun.myartsonline.com/atomic_absorption_spectroscopy_introduction.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/darigufajoxuku.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/diagnostic_guidelines_macrophage_activation_syndrome.pdfIn PDF document text
    • http://lugivodunoxasi.atwebpages.com/ipl_2020_time_table.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a083df4-cdda-45ee-ad7b-b76fd5ccde32/sennheiser_ew_100_g4-835-s.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/aimbot_minecraft_1._8_9.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecc520ef-5ada-46fc-92e7-f8bf6a7248ba/71007051191.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/morujomafovi.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/67989267273.pdfIn PDF document text
    • http://zagofij.onlinewebshop.net/dokarafesonixeputaduvis.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FD 5180 bytes
SHA-256: b7a4e277401bef7c23b7a9c4bf1f8a7794b7d38e50c3ca6fd45f90c843b2b8e9
font_01_sfnt_off000103a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103A9 11072 bytes
SHA-256: 87b9f81a61bceff4441eb904b12d923a6c783e3cd530e979b89cec14f28f6046

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