Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a712b0b3667dab9…

MALICIOUS

PDF

74.6 KB Created: 2021-05-21 08:14:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e7a323fbab46577e8d93e63c142f292d SHA-1: 1a714760859b1e56061e07ade0c1ec6f1ce7c4e8 SHA-256: 0a712b0b3667dab9eca3a17f385c07ffd5ad3be6b3ebafd093a38a272a8c6fba
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 0.9992

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://mezovuduw.ru/strik?utm_term=kanye+west+clique+mp3+download+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4467573/normal_60473f2aed6d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403143/normal_6050cb3d3e0dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465257/normal_604853fc66aa6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488569/normal_60160a562c97f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477373/normal_60676ce52ded7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493873/normal_604d67a64a2b5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493201/normal_600755706866b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420761/normal_603475a332816.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452861/normal_601b644a65f4c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455179/normal_604fc44a2fd0c.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/defipedibe/75632612435.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a703a13-d693-4aca-8c57-6fccc68607db/93783872221.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/seagull_bartender_professional.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/samsung_galaxy_s9_plus_unlocked_att.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/nozulasa.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/morgul_endless_dungeon_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee6320c2-78b1-4bde-a96d-799f0df888a2/16836173168.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4369a140-dbc5-434f-9ef4-f9d2b517c90c/how_to_solve_a_rubix_cube_in_a_few_steps.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/nha_medical_assistant_ccma_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/completing_attendance_allowance_form_online.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/write_amiibo_nfc_android.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/adobe_after_effects_software_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/the_lightning_thief_chapter_2.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_off0000e31a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE31A 5752 bytes
SHA-256: 583cde26e408d8bdc4dacd313088fe8f1261115ee2d79777ef4b2d72213c1017
font_01_sfnt_off0000f6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6BB 11152 bytes
SHA-256: 2dc715a008402e2129b5a37baf7b38b9b64ebd63bc0764474ad47230c8de8971

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