Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5d347bbb07c2ac6…

MALICIOUS

PDF

77.7 KB Created: 2021-02-20 10:33:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 9d07c713d55bac5cfa01cf7bb7af8001 SHA-1: ac5490ca6f7bb7748f1d1a91409a8b1e87ef9baf SHA-256: e5d347bbb07c2ac6e67c958f4eb058f4cb0bcd72bcb47e12f60aed753d7c576f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wix?keyword=affidavit+of+personal+knowledge+of+marriage PDF link annotation
    • http://zdsshop.top/10_envelope_template_google_docsprkft.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420434/normal_600ceb1edf07e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496586/normal_5ffbb1a6781c7.pdfIn PDF document text
    • https://cdn.sqhk.co/nejajevafode/jkjiXih/36663886697.pdfIn PDF document text
    • http://top-shop-store.website/rac_traffic_report_on_m4_westbounddd2mn.pdfIn PDF document text
    • http://usacreditcheck.info/saxagonakegokuliboremk3k9v.pdfIn PDF document text
    • http://ideal-it.fun/tukofev47wz5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368238/normal_601e993e8d817.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370737/normal_602dc5345b740.pdfIn PDF document text
    • https://cdn.sqhk.co/kepilujofeje/gdhfvid/diaphysis_meaning_in_medical_terms.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwumixe/fuCgsgi/11897773400.pdfIn PDF document text
    • https://cdn.sqhk.co/botikavanov/ibiggVI/25173757292.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
    • https://s3.amazonaws.com/fuwuzerijofa/79230904636.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/original_cabbage_soup_diet_recipe.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/nazofusebukaxani.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/amnesty_international_death_penalty_report.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/flush_dns_di_android.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/65435473581.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/lexamazari.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_off0000e5ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5AC 5356 bytes
SHA-256: b0dcca9d246c86f36a64a57c08e5071245a30299d2d815fc43fa15cbb1de9047
font_01_sfnt_off0000f7e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E0 10256 bytes
SHA-256: 3c9d19a7d4155c3eba4bfe3c79ee4f79fe235a922694ceb29c8de7ac8ab9eade
font_02_sfnt_off00011ae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AE2 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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