Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a2bc596cf836a9e…

MALICIOUS

PDF

66.0 KB Created: 2020-12-09 15:49:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e310916aec24d11feb2517e7c6b19586 SHA-1: d6d9eb10af92dc016716fb63956ae0f5438c6187 SHA-256: 8a2bc596cf836a9ebee2c02a3ec5d792aba6f960a37721bde100e34128426d68
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://trafffi.ru/strik?utm_term=monster+carnival+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368976/normal_5fa0eb1254d35.pdfIn PDF document text
    • https://napuximijagebi.weebly.com/uploads/1/3/4/7/134766840/bizuje-dobog-zawomifu-fusal.pdfIn PDF document text
    • https://lanoxujuzon.weebly.com/uploads/1/3/4/6/134630121/730a0122e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379856/normal_5f8e7e2d2f347.pdfIn PDF document text
    • https://nutikatike.weebly.com/uploads/1/3/4/6/134601603/b3553.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1418179e-80b3-4ed4-b36d-b486255c4f48/aquaman_2018_google_docs_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c0eff94-d2e6-4724-a9a6-7b848f03ab7b/canon_eos_50d_service_manual_repair_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1175aa879396864096daa/t/5fc3a5ef4f983757204f61e6/1606657519384/vitizow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7973b99-8012-428b-b809-92313bdde413/64449714504.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f1f587e-c1f3-4310-a11e-6b2d132dad58/jukuvixej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e45ccab1-9bbc-4c1a-8f49-2d72ce96c25d/54402937783.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc65200ea4a794d566a2ee3/t/5fcb6228bce7087d1adc3682/1607164456962/school_girl_simulator_apk_pc.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_off0000c772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC772 5172 bytes
SHA-256: 4daa7c27ccd7e308c21bf8ff25961ca39a8fca65961322cd9136480352eb8ff9
font_01_sfnt_off0000d92c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD92C 10160 bytes
SHA-256: 340937770ab001a898c2e0e8d703a29f8b89fef9dcf52405827d57cdf545bfea