Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a11297b38c7d0c7…

MALICIOUS

PDF

73.8 KB Created: 2021-03-12 13:50:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c758427ac23a6aaae46a67b65f37f1c0 SHA-1: a3079ec8b147fc37e6f017aa8436bcea7091664d SHA-256: 0a11297b38c7d0c780c71f842672326f6c566478d4f72f2ac8c4690b930a39f6
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, indicative of a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and numerous external URLs point towards a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gimoguvi.ru/strik?utm_term=philips+dvd+player+remote+control+app PDF link annotation
    • https://cdn.sqhk.co/jedelamodafa/3hbhgKt/sega_pocket_club_manager_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/faruzikako/LjTjhgh/reposteria_en_ingles_significado.pdfIn PDF document text
    • http://lovepositions.info/does_priority_mail_international_include_tracking2ztwj.pdfIn PDF document text
    • http://leftoutclub.com/zegizitomajevezigukozuwu3buus.pdfIn PDF document text
    • https://bepupoxusiboma.weebly.com/uploads/1/3/4/8/134847186/bodegopakijo.pdfIn PDF document text
    • https://roribevewo.weebly.com/uploads/1/3/4/5/134502196/506ca7988aa.pdfIn PDF document text
    • https://lelodudovoveju.weebly.com/uploads/1/3/1/6/131607117/nuwuru_kijip_nipotivivap_saxak.pdfIn PDF document text
    • http://idealica-columbia.site/968804107390yv41.pdfIn PDF document text
    • http://www-sfr-fr-monespace.com/the_mysterious_benedict_society_filmq0t77.pdfIn PDF document text
    • https://tevaxuxelajuri.weebly.com/uploads/1/3/2/7/132712575/7fb18e0eea2f44e.pdfIn PDF document text
    • http://gromstroy.com/kiridenomevovimodn9np.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/detgec1/wudoputepevajug.pdfIn PDF document text
    • https://cdn.sqhk.co/dedenijikal/PEzhdii/charls_recharge_products.pdfIn PDF document text
    • http://rusakova.space/vexibazofasokjcgds.pdfIn PDF document text
    • https://bovejivisesuja.weebly.com/uploads/1/3/1/3/131384116/8183f0a832dd8.pdfIn PDF document text
    • http://biomanua.website/42243682976yu5l2.pdfIn PDF document text
    • http://creditreportus.info/musculo_cardiaco_definicionptd82.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/tobovunoberiki/philips_respironics_auto_sv_advanced.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/five_weeks_in_a_balloon_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/car_rear_view_camera_bluetooth_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/97777473945.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/football_statistics_sheet_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/kopuposugeropovubuda.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/facebook_windows_7_32_bit.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E9 5476 bytes
SHA-256: 245ef70355f11fedad9d5efaa17d8c58c802e9c9e06c0d22d4c1c94e8e4c5608
font_01_sfnt_off0000f56b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF56B 10368 bytes
SHA-256: eb9b249bd59a5e1df3cc082dadc8245805e00aa68dba2ae78e0d3cbe16b6a920

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