Malicious PDF — malware analysis report

Static analysis result for SHA-256 54197feb453fc740…

MALICIOUS

PDF

98.8 KB Created: 2021-05-02 01:02:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: b39af8562669ced109b5a5eaa6060eed SHA-1: 2cf2cfedce58c6e88a2c5d6686b958750a71af41 SHA-256: 54197feb453fc7407865b5401447ef431da2c02561b5224a3a0c2bec3125f330
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with a primary URL pointing to a domain associated with phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further malware or engaging in phishing activities. The document body, though heavily obfuscated, contains references to 'Focusrite scarlett 6i6 setup', suggesting a lure for technical support or driver downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/strik?utm_term=focusrite+scarlett+6i6+setup PDF link annotation
    • https://cdn.sqhk.co/wojipezusax/hjgeM6x/80294164247.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/Nhhjaih/jio_free_100_gb_data.pdfIn PDF document text
    • https://badevejolaf.weebly.com/uploads/1/3/4/8/134867981/fasatu.pdfIn PDF document text
    • http://avit0.cc/cash_envelope_template_cricut6l6zk.pdfIn PDF document text
    • https://cdn.sqhk.co/pimabosi/he87nLA/java._lang._outofmemoryerror_permgen_space_tomcat_7_eclipse.pdfIn PDF document text
    • https://kepegefamoza.weebly.com/uploads/1/3/1/3/131398453/fijiwagituwozoradar.pdfIn PDF document text
    • http://rimonevo.iblogger.org/vujowonudapenavodolekex.pdfIn PDF document text
    • https://kajilavenusifo.weebly.com/uploads/1/3/2/6/132683330/9840120.pdfIn PDF document text
    • http://madewithsunshine.com/cigna_tier_1_provider_meaningt3okz.pdfIn PDF document text
    • https://cdn.sqhk.co/tijatabov/iJWoggg/xenolifipaliluf.pdfIn PDF document text
    • http://dihtyar.online/91801565593pw21o.pdfIn PDF document text
    • https://tedaliduvif.weebly.com/uploads/1/3/5/9/135957254/4d361.pdfIn PDF document text
    • http://bred-enligne.com/voketotixexozeraa92ji.pdfIn PDF document text
    • http://hookup754.fun/hiv_haart_guidelineswm8po.pdfIn PDF document text
    • https://cdn.sqhk.co/dijabidasu/ajcQVxA/racing_motorcycles_top_speed.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://uploads.strikinglycdn.com/files/5f7872ea-2e81-48ab-9514-4186ff85feaa/afterglow_xbox_360_controller_pc_driver_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/samodekese.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/bazefarenerasixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9946940b-a82d-4a3e-9572-ab9de96e9083/biological_psychology_simple_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd94675e-b003-4b45-8842-875be0045c3f/a_wild_sheep_chase_what_does_it_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/jutirakemukevudovutor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a76a8a3-257e-4bf3-973b-18eb8825ef6a/10184773060.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/benzodiazepine_poisoning.pdfIn PDF document text
    • http://sepudigarij.epizy.com/kidope.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fc34ccb-38d9-4ab8-8662-6e03c761c168/does_gravity_influence_density.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/marotunalovomakuxutotad.pdfIn PDF document text
    • http://wiwazojugumume.epizy.com/dd_full_book_set.pdfIn PDF document text
    • http://bizosubage.rf.gd/jurnal_metabolisme_lemak.pdfIn PDF document text
    • http://jarawujutuva.epizy.com/23819022861.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_off000131c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131C4 4812 bytes
SHA-256: d0c777805255c2ab9e03a1dd3837d2797eb79a88d1e030bd324134895d4cb0f1
font_01_sfnt_off0001422f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1422F 14612 bytes
SHA-256: 7bcd5d5f738855961d3bd90b919dc856a9852c0b864ce25534a4f8e0d332316f
font_02_sfnt_off00016f1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16F1C 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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