Malicious PDF — malware analysis report

Static analysis result for SHA-256 169d8457d7a54388…

MALICIOUS

PDF

78.4 KB Created: 2021-05-15 21:03:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 19e7f158b81bf1917f814f856a6f9b60 SHA-1: 1b170d24b02cb67476953ca6607bb080f10e4a18 SHA-256: 169d8457d7a54388eb13bc2b77370f770add82322822be6fa5facfc0bfec5624
96 Risk Score

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-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/strik?utm_term=list+of+latin+names+for+animals PDF link annotation
    • http://lavkavkusa.store/sea_doo_jet_ski_mechanic_near_meuvai0.pdfIn PDF document text
    • http://kismyketio.com/fodajirifususalicptrv.pdfIn PDF document text
    • http://ndfnasg.xyz/dometic_rm2652_thermistor_replacement3mp98.pdfIn PDF document text
    • http://fitness-ital.fun/lekelezexojaxonag0p3mk.pdfIn PDF document text
    • http://fionainthefield.org/how_to_say_daughter_in_mexican734xh.pdfIn PDF document text
    • http://uablog.website/2543917757624xtx.pdfIn PDF document text
    • http://stnold.com/digejufalisinoniximislmk10.pdfIn PDF document text
    • http://vovality.club/97599387970nc5tf.pdfIn PDF document text
    • http://tersq.fun/97340164286rvbpx.pdfIn PDF document text
    • http://topplafond.xyz/probability_density_function_normal_distributiongjtnm.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/tiduro/73790026582.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/computer_programming_aas_degree_salary.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/zojirushi_rice_cooker_instructions_nhs-06.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/kedifawaje.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/nobunezubuduzewas.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/dibujos_de_caras_para_pintar_en_tela.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/new_version_gb_whatsapp_apk_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/william_faulkner_as_i_lay_dying.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/7907346779.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/14170335941.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_off0000ea89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA89 4644 bytes
SHA-256: 6c22a9227fdbce55747284e8a5a95096dd6cb3a0b285b3ac2e6eb745c5b7f55c
font_01_sfnt_off0000fa20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA20 10664 bytes
SHA-256: d790fa409187685d3e5009b913b757b8e2cf38e8b44c5dcdaf545c800d9aa702
font_02_sfnt_off00011e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E5E 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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