Malicious PDF — malware analysis report

Static analysis result for SHA-256 baea0ca34d07b065…

MALICIOUS

PDF

76.5 KB Created: 2021-02-20 06:42:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: 9379c469e26e21698948d09f3dc8bad5 SHA-1: 9361d650156ba9b0fd344b5238de3cf5cc8b2f31 SHA-256: baea0ca34d07b065240ad01ea23db2b51ac50676900a640c3782d7e9cce0141f
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. An external URI pointing to 'bologen.ru' was extracted, suggesting a phishing or redirection attempt. The document body, though partially corrupted, contains text related to adding a search bar, likely a lure to disguise the malicious URL.

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://bologen.ru/123?utm_term=how+to+add+a+search+bar PDF link annotation
    • https://cdn.sqhk.co/jotepomi/ngheacx/world_clicker_idle_clicker_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/vewimidipiv/Dibhsja/learn_python_programming_romano.pdfIn PDF document text
    • https://cdn.sqhk.co/vogoxaginoje/ahacieL/como_hackear_campus_date_sim.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/f0cidif/hepatitis_virus_medical_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/bafiweba/JidP0hg/98493976410.pdfIn PDF document text
    • http://gordei2d.com/caledonian_canal_skippers_guide3dnea.pdfIn PDF document text
    • http://vquest.website/orbit_sprinkler_valve_not_workingpzo2w.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/sivanira/65273774665.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/lebudusa.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/94655449538.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/pokemon_advanced_battle_gba.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/78765960253.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/england_league_1_form_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/gavezumopivosewina.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/yowhatsapp_ios_12_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/53582242422.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/reported_speech_imperatives.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/anand_1971_full_movie_hd.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_off0000eca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECA0 5188 bytes
SHA-256: 0ce1b073477709b7fa983285b89e8834bedbb7574b1726bf739004efdf038062
font_01_sfnt_off0000fe52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE52 11336 bytes
SHA-256: 06b5826ac938b0735989f2ec0bbf256d7bafdd3820f29b941c11e42d7ad4bca0

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