Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc0d2f5d388c05f1…

MALICIOUS

PDF

84.2 KB Created: 2021-05-24 12:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f9e69ae8faf04bd5531c69e3a02c2467 SHA-1: 10da1adefe4778dfdd77bda41162f835b7a92bf5 SHA-256: dc0d2f5d388c05f16d264a31019151aa2c7e4dc221ba239a55f4896a56ae4bf9
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 0.9997

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://seumenha.ru/strik?utm_term=car+sales+agreement+template+word PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4494677/normal_6040538e4163d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365649/normal_605cac630943a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408704/normal_5fcbd6ffcf70a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444630/normal_603f46e06ce64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449185/normal_6060f835ed7a0.pdfIn PDF document text
    • https://tazanuna.weebly.com/uploads/1/3/5/9/135977230/korera.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380379/normal_5fcb8db5c99a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415077/normal_5ffac4e265395.pdfIn PDF document text
    • https://bofejaximolapob.weebly.com/uploads/1/3/4/7/134751884/8341599.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464870/normal_5ffce0a188b4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368742/normal_60068cb85b8c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369499/normal_5ff94a747c3ed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370288/normal_5fe3488d5bd13.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/savukojubusum/dt466e_valve_adjustment_procedure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b404a45-9b01-4135-93dc-fe86ff5e0c47/different_types_of_academic_writings.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/my_boy_gba_emulator_apkpure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e92dd1a-f397-4988-96c6-6a0d2c986370/93242456474.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29ebe95f-fd1b-42c7-98c0-838084cbf218/bejomivimutetazoligomade.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/fenamavusizofamona.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/jeu_de_cartes_a_2_facile.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/how_to_write_and_deliver_a_speech.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7701c915-24c6-485c-b8c9-0d7419e67605/xugojibuzemanenopitubezef.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_off00010a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A16 5276 bytes
SHA-256: 12064f2ccf36b36579817d5faa07dbc77b49135b919673ddf32c35f2306c14e7
font_01_sfnt_off00011c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C03 11144 bytes
SHA-256: 41d8e73aadace3b946b374355139a5d9a6c3d3128159940b6b5f334cc77d18a4

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