Malicious PDF — malware analysis report

Static analysis result for SHA-256 1941e9bf3ebc3e49…

MALICIOUS

PDF

80.1 KB Created: 2021-05-06 16:44:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 132073c3bba155ba9e006368ead066d8 SHA-1: 8a8cf61e149ec24ac8b75e08ed26f08c50263a43 SHA-256: 1941e9bf3ebc3e491f075f961d82b58ed572ddc5f6805da3fc17ac7883a4a4de
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://mezovuduw.ru/strik?utm_term=jvc+kd-r461+manual PDF link annotation
    • http://fesotisifofil.mygamesonline.org/applications_of_partial_differential_equations_in_real_life.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449424/normal_5ffe89d953fa2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410418/normal_60162871353f9.pdfIn PDF document text
    • http://lafowesezojo.scienceontheweb.net/lojirenulifitutigilowipo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410414/normal_5ffdb0be37026.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474231/normal_5fcb2d0026ea4.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/d063b53c-81e1-4767-9062-28d7f2b57b38/nenevadupozakimekafuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/alaris_gp_plus_infusion_pump_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/new_bollywood_movie_song_2019_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/kixodu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31cca223-390b-466b-884a-ac69ca64cb83/how_much_is_my_nintendo_ds_lite_worth.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12af0ab1-0c71-491c-862b-49be80e4841c/winchester_model_12_youth_pump_action_bb_gun.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/44410951656.pdfIn PDF document text
    • http://pivimufe.atwebpages.com/sbi_bank_po_exam_study_material_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/rustoleum_cabinet_transformations_espresso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c715b82-a39f-4221-9d60-807939c50b1d/dragonix_monster_manual_expanded_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abe2c96e-f351-4175-8104-8506891dc036/96870242125.pdfIn PDF document text
    • https://s3.amazonaws.com/mafavuzenoliki/paint_by_numbers_michaels.ca.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9862b227-3dec-4c5f-be0d-cad8ab97492d/what_is_the_best_gopro_selfie_stick.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_off0000f18c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF18C 5348 bytes
SHA-256: 22d197cf37d7eebf6de10fa319a186fa7c49d5bbe6600f4f291fef0ac175e14a
font_01_sfnt_off000103c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103C2 15224 bytes
SHA-256: 298f10b2f1691a64ea92c9392522ff89bfbfc94a437c9243eb8399cea051e04f

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