Malicious PDF — malware analysis report

Static analysis result for SHA-256 de8518659f9c222e…

MALICIOUS

PDF

75.6 KB Created: 2021-05-11 01:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 207668f941a02a680fdfdeb0b18e31df SHA-1: 508267e4ee5ec60581e251e39a6b98f1fe70a61a SHA-256: de8518659f9c222e83cb16bd3d80c41477d4cfa4baee03592ba9354d3d0a69b8
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-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://lozipotod.ru/strik?utm_term=how+much+is+a+2006+honda+civic+ex+worth PDF link annotation
    • https://cdn.sqhk.co/tabotewo/WYjhYap/fojore.pdfIn PDF document text
    • https://cdn.sqhk.co/busosuwik/tcghgfF/candy_crush_soda_saga_online_spielen.pdfIn PDF document text
    • http://nuxirofa.iblogger.org/onq_ri_training.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386849/normal_601fbb1e4ad59.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408319/normal_5fe48afb366ae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392659/normal_5ff0898ecac13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448129/normal_5fe61e5b8457d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384301/normal_5fc82d03d74ff.pdfIn PDF document text
    • https://cdn.sqhk.co/xumirikebixo/hgfYifm/dixul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476930/normal_60387ff38baf5.pdfIn PDF document text
    • https://cdn.sqhk.co/giwitosak/cigCgh4/43996401303.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448986/normal_600e236217f40.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vakusidoler.epizy.com/checkers_rally_s_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/android_advanced_calculator_source_code.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/lolasatotixadogutedu.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/98993062051.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/bivazidogatab.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/accident_reports_jefferson_county_alabama.pdfIn PDF document text
    • http://bowenadulopusin.rf.gd/epidemic_endemic_pandemic.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/principles_of_design_rhythm_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/lanavoxibewixole.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_off0000e87c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE87C 5756 bytes
SHA-256: 5855e1918f2d2b470674fa45528edb4becf43775c2493d9407edad3c5240adb2
font_01_sfnt_off0000fbfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBFE 10804 bytes
SHA-256: a4d669c2918c013a5fd0ba86f4f1b3f495cd8c98f1ab767fb2cd7e2b033ad775

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