Malicious PDF — malware analysis report

Static analysis result for SHA-256 a111c1e40640e3c9…

MALICIOUS

PDF

74.7 KB Created: 2021-03-23 05:19:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ace8a0f329a52177330d41d3e6b2b277 SHA-1: 79ca7234d0432e8f12e03974b18cb42d5afff879 SHA-256: a111c1e40640e3c90fd93d8824acb361d6902fcc12684e1e79629dac806f60eb
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 0.9996

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://baarspo.ru/wix?keyword=one+step+equations+pre+assessment PDF link annotation
    • https://cdn.sqhk.co/teforoke/iidiIbX/survival_city_zombie_base_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/bubiwalifeda/gjTXIgd/airplane_mode_movie_2019_netflix.pdfIn PDF document text
    • https://cdn.sqhk.co/webepinovet/bFUthi9/82899130223.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496204/normal_6018ada0043cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380890/normal_60360ea4678aa.pdfIn PDF document text
    • https://cdn.sqhk.co/lovojekaboxi/hjcGhjV/bowim.pdfIn PDF document text
    • http://devivitonewe.sportsontheweb.net/articles_worksheets_for_grade_7_with_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/hjjQji4/65474337679.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492536/normal_602e284e39183.pdfIn PDF document text
    • https://cdn.sqhk.co/gebitasixa/hdgieoq/weather_report_for_lameroo_sa.pdfIn PDF document text
    • http://xovuwowim.mypressonline.com/does_lowes_sell_dewalt_tools.pdfIn PDF document text
    • https://cdn.sqhk.co/zudoputasafe/djduiaX/46046776059.pdfIn PDF document text
    • https://cdn.sqhk.co/luwesefizi/8Vic6ic/cricket_wireless_coverage_map.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393022/normal_604ce44135487.pdfIn PDF document text
    • https://cdn.sqhk.co/fumodolanes/ifhdYji/4896027597.pdfIn PDF document text
    • https://cdn.sqhk.co/zanivuwiduvo/tzFhDib/wyze_app_sound_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/rivotoxupow/Qhfjgdf/wenufulemejepadowopoj.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/e9dbf8d0-e8f2-44e3-a649-ac7dce9efded/muvilebupazene.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cad60db-68bd-4e0a-9d8f-2b8e601d3460/65533219078.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44d80f94-6b77-4a33-a122-c1413a755ea6/74960658544.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0959d146-cfa6-4da3-8fbd-b51d7f1f62da/can_i_use_procreate_pocket_on_my_ipad.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 2

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_off0000e888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE888 5088 bytes
SHA-256: d2498607d3e09da060758ff3ffd167198eccfc9a5d67b325f81c36e77f169523
font_01_sfnt_off0000f9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9BC 10388 bytes
SHA-256: 67619c0fb03b0675cbe3b0b1d07a9f198f24e6c0d82311e20ca6ab660c73ca22

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