Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1ecf8074a5f0b3e…

MALICIOUS

PDF

92.2 KB Created: 2021-02-24 19:43:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 1e84a1a395bcdf4360299d46aa015a57 SHA-1: 789c14f5cf8766d6d4f96e96181a523f0952684b SHA-256: a1ecf8074a5f0b3edb6b89ec433d9314ea31ad81566e8e368d2ec6ae3cc9e9a8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site, potentially leading to further compromise.

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://leonvi.ru/strik?utm_term=jedi+training+academy+disneyland+paris+2020 PDF link annotation
    • https://cdn.sqhk.co/jolodovi/gihfTrm/movies_anywhere_app_download_to_sd_card.pdfIn PDF document text
    • http://alfa-quest.ru/ronodinavivedi2ypia.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/Xjdhdjj/99469994848.pdfIn PDF document text
    • http://yourcy.com/faceing_math_lesson_15_answer_keypiwl4.pdfIn PDF document text
    • https://cdn.sqhk.co/zofonabiz/lSjcigB/44344953488.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/fewifuwu/kozazutabex.pdfIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/93957249187.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/how_to_install_di2_internal_battery.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/rebaveludoluxoje.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/walt_disney_world_park_maps_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/45556937005.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/honeywell_thermostat_rth230b_ac_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/tipikaxe/cartoon_network_arena_mod_android_1.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/ice_sheet_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/9312575613.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/castlevania_aria_of_sorrow_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/mebegebaporilipeb.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/imdb_parents_guide_spring_breakers.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/xomipatesawofulaluxutur.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/45056683790.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/sample_format_for_expense_report.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0E 11516 bytes
SHA-256: eb71f4555ca830aa3dea9937a220de37af02b24edd0379558bf6e676cf635ee2
font_01_sfnt_off00011552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11552 5760 bytes
SHA-256: 0fa5ec09ceec0f2a48f24f3703ddeb25b8abc87f3dca350e66d1173e5d61435a
font_02_sfnt_off000128df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128DF 10484 bytes
SHA-256: 347a0ad9df3da91d083b9e59ff7b108ae2fc0b567181b5f9b1fb0eb9a265b589
font_03_sfnt_off00014d29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D29 16232 bytes
SHA-256: ffd3e8dfc560eb94389583fe820f5cf566e1aa0306485e7a124c5ca1b60505e8

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