Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d11fd42ed221ba4…

MALICIOUS

PDF

93.4 KB Created: 2021-03-28 18:43:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 56fca5deba7293fd2f0c696c102a5751 SHA-1: 5cfdb5931e3d3da745523dd6c456191a7c314093 SHA-256: 2d11fd42ed221ba44e6b3f39ab621ec7983ee593ef04d5c11aebdf46ba4a5e6d
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 0.9994

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://seumenha.ru/wix?keyword=hal+martin+nsa PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4496815/normal_60217240adf89.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379233/normal_5ffb4ab4202c2.pdfIn PDF document text
    • https://cdn.sqhk.co/wojusipi/oUBdR92/c_format_byte_as_hex.pdfIn PDF document text
    • http://vozivovog.scienceontheweb.net/padaw.pdfIn PDF document text
    • http://newberginvestmentproperty.com/seagate_central_4tbajwul.pdfIn PDF document text
    • http://copriyghtconfirmed.com/kigegumliadk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406216/normal_601b4038a8369.pdfIn PDF document text
    • http://waranijovuv.sportsontheweb.net/nesobebeta.pdfIn PDF document text
    • http://kernig.online/pekatonivaduniwagippk74.pdfIn PDF document text
    • https://cdn.sqhk.co/tezejikibus/n4QI6fY/dual_antiplatelet_therapy_guidelines_2011.pdfIn PDF document text
    • http://mini-cam1.club/parabolas_worksheet_algebra_2da1r2.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/mefovu/52238009621.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/wuzikusubapumewopu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/669ad0b5-9f69-4b3b-b8bd-659e8ec90d01/zuwojilujunuwuvibexat.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/rental_income_spreadsheet_template_uk.pdfIn PDF document text
    • http://zilowovuv.atwebpages.com/auto_repair_invoice_fillable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0c2a39c-77c2-4b96-9d09-2d13b0506374/what_does_jobs_wife_say_to_him.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5403140-7b4d-46d7-a845-8ff4371c1038/en_el_nombre_de_jesus_letra_gladys_muoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df743d0b-c0f2-4135-b400-c024d2923ab6/crochet_patterns_for_hat_and_scarf_sets.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/bieap._gov._in_login_form.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/checkbook_app_for_ios_and_android.pdfIn PDF document text
    • http://lawaxisagiwog.atwebpages.com/designing_data_intensive_applications.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12288 3304 bytes
SHA-256: e9df1abf47a688c52bbf36275161d4c71dd3d5463c3e540779115c3c600865d9
font_01_sfnt_off00012e6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E6E 4792 bytes
SHA-256: 21c2a4716bd6483458c7f6668def64f332eb069687e2c22fe7e0e2d4a6dbd875
font_02_sfnt_off00013e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E99 11868 bytes
SHA-256: 1548a73d1fb9c6af4e362a92b3392b085bf20a4c905cb339f30656499d3952a1

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