Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4e58134b1ffb0a…

MALICIOUS

PDF

79.7 KB Created: 2021-03-24 00:52:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4d00fd6fa1c0b1828b72c2fe59788c42 SHA-1: e32f4398af2624b852fd1b7b209596ab03170ad4 SHA-256: de4e58134b1ffb0a8fd554cf8d9db2b8c3f187782755ca73be59d99021b4f250
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://baarspo.ru/wix?keyword=4+letter+shapes+word+whizzle PDF link annotation
    • http://robugipunebib.mygamesonline.org/who_was_the_first_martyr_to_be_killed.pdfIn PDF document text
    • http://seweripuwas.mywebcommunity.org/12656927767.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366947/normal_6022b15e1e651.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409246/normal_6015bb444bdd2.pdfIn PDF document text
    • http://mivifukatovaga.getenjoyment.net/fakoleverebexorizumixufoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445541/normal_5ff333e3020b6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://topuwagib.epizy.com/business_process_outsourcing_project.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fd9b1b8-907c-4d10-8088-80a23a7c6e5e/nikon_p-tactical_.223_3x32_rifle_scope.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/ccnp_route_300-101.pdfIn PDF document text
    • http://sagowef.rf.gd/25242193850.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/how_to_use_table_tools_in_word.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ac95125-9723-4571-ba5c-c39aacb3dd56/vepunaniw.pdfIn PDF document text
    • http://sajomapujozokux.onlinewebshop.net/89903706795.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/xeridopozesa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/046b6d4d-2059-474a-8bf3-5f03d37e3f57/nogetoko.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/pokemon_red_gameshark_codes_exp_multiplier.pdfIn PDF document text
    • http://xolevusafo.myartsonline.com/51348123827.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/53865130640.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/barwell_infant_school_uniform.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_off0000ec69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC69 4864 bytes
SHA-256: 255a44778b9adc2f96a9271e8681136368b7d0d5226a242a6a0d8e031bb481d0
font_01_sfnt_off0000fd1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD1E 11304 bytes
SHA-256: d81716942fc6f5204de2414973cf14d68310f4381709a72e21428f12c543a6da
font_02_sfnt_off0001239e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1239E 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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