Malicious PDF — malware analysis report

Static analysis result for SHA-256 56a62bbf4b8f3130…

MALICIOUS

PDF

79.5 KB Created: 2021-04-08 03:37:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 93d8d65342b7949e1d59e50e69a4c821 SHA-1: db1ebe90dd7c813a1b9fb8fa659741f09e601d10 SHA-256: 56a62bbf4b8f3130209e13eda6cc695a1bfaf4b1f781bb47ef5e165767a7d72e
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://golowaki.ru/strik?utm_term=entry+level+qa+jobs+remote PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4384026/normal_5ff06d42122b4.pdfIn PDF document text
    • http://lebuvowune.getenjoyment.net/prova_auditor_fiscal_receita.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367656/normal_5fd243e97d89d.pdfIn PDF document text
    • https://xupajipodiburut.weebly.com/uploads/1/3/0/8/130814024/xubufur.pdfIn PDF document text
    • https://dibotora.weebly.com/uploads/1/3/4/8/134870334/tikijijuga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490264/normal_6044dea611891.pdfIn PDF document text
    • http://peramabejakes.sportsontheweb.net/inductive_and_deductive_reasoning_worksheet.pdfIn PDF document text
    • https://dazifefizax.weebly.com/uploads/1/3/4/8/134854215/derowedupenoruv_vitiwivuvosefi_tefafepob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424645/normal_5fd3481f2f3ed.pdfIn PDF document text
    • http://lajodibibodi.getenjoyment.net/how_do_i_access_facebook_marketplace_on_desktop.pdfIn PDF document text
    • http://taxarigi.sportsontheweb.net/sda_hymnal_lyrics.pdfIn PDF document text
    • https://wafulezejo.weebly.com/uploads/1/3/4/7/134748518/9ac73bb17a53e3.pdfIn PDF document text
    • http://jajolamuseku.medianewsonline.com/bitzer_compressor_catalogue.pdfIn PDF document text
    • https://rajikaluniker.weebly.com/uploads/1/3/1/3/131383998/jefijowi.pdfIn PDF document text
    • http://zumepaposakuf.scienceontheweb.net/guvezufemajerawub.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/jedaxopopuko/how_much_food_should_i_feed_my_puppy_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/69417277431.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/australian_super_performance_30_june_2018.pdfIn PDF document text
    • http://pizenusogusu.atwebpages.com/67657090188.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/xanathar_s_guide_to_everything_druid_spells.pdfIn PDF document text
    • http://nevafofuvabovid.atwebpages.com/aarti_sangrah_in_marathi.pdfIn PDF document text
    • http://lopafulobitap.atwebpages.com/sisiwefi.pdfIn PDF document text
    • http://movasedumanepe.onlinewebshop.net/74729249283.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_off0000fa0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA0B 5292 bytes
SHA-256: 41f3a4fd41f25b56b0591aab2bd1be0960287b5b812a4d44b39542b589ee9767
font_01_sfnt_off00010c0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C0E 10860 bytes
SHA-256: 77aadc13950ae0943b8d8bf47b29194cdaae40fabde44ef94fc1fb5c19a57c58

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