Malicious PDF — malware analysis report

Static analysis result for SHA-256 9db75f5fec4b7d38…

MALICIOUS

PDF

75.7 KB Created: 2020-12-21 00:51:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 3e3146ae116ae124a257f2696bdaa6eb SHA-1: 9c5f3744210bf9f3a919c534ca71f3aa3e5a3c4b SHA-256: 9db75f5fec4b7d389608b1f4a9eb1c6d7861388457841266f521dabe8caf5f24
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/123?utm_term=financial+management+notes PDF link annotation
    • 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/e5e4b8f2-c417-47d7-be16-c8576b36aa1e/jebixaradijidafekowagubu.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/bhagyaraj_movie_songs.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdd5508eb685147a09c9c9e/t/5fdd6f457514fb3b76302a1a/1608347462228/fusujivufasosotevorivi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a7f9eee-df81-42e4-994b-057b539c4188/netoredite.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/xawaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a325ffb-6ba5-4f62-a4d9-01678fc8e540/thorndike_law_of_effect_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/bhakta_kanakadasa_kannada_movie_songs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e435b325-fb43-4f2a-826f-3fa5502a93a5/wedding_dash_3_play_online.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/sunaru.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fde7bc2425c6404843c03bf/t/5fdee507a3b92b153c2ea856/1608443151286/eau_guidelines_prostate_cancer_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/864652a9-8f99-4d69-bda0-177eec8d211e/zawimixajetareb.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/dbt_emotional_regulation_skills_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/chatiw_beta_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a2baede-8258-4b1f-a327-94cebaaf6a2f/xudivuzabafuzot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcbbce95-b32b-4d91-8e8f-d264fb2f00ce/printable_kindergarten_reading_fluency_passages.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_off0000de52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE52 4768 bytes
SHA-256: d11c91ef440cb17d60017cb9c09a94ac886a4f16053080770c840fa2a0bfcbfd
font_01_sfnt_off0000ee62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE62 11096 bytes
SHA-256: 05a8f8013481c0d3cc5d3ed5c9dfea8dd8a66109ee19ff5021640c0182d6ed88
font_02_sfnt_off000113f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113F1 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333