Malicious PDF — malware analysis report

Static analysis result for SHA-256 913ed9376018645b…

MALICIOUS

PDF

71.4 KB Created: 2020-12-05 15:46:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 0d08691f8212c9ff66100dad1a21c9e2 SHA-1: de88662828cc4e21ed2ad6fd401bdbd4902dceda SHA-256: 913ed9376018645b20bb844963347ae38d42a762920a46d9febbe98b0de8fb1b
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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffine.ru/strik?utm_term=oreck+manual+carpet+sweeper PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366408/normal_5f8ab9fedb705.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375353/normal_5f8b67e3634f8.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/dugibabafod/nodozagowupojig.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/game_rise_of_nations_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/sodomurofipaz.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/20532160496.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a8fdc1a-75ba-4da5-baa7-0d0fc184bafa/gamijuzolibunidi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc654295687f52b6ba616b7/t/5fc812ac4b97230d05fdbc8b/1606947500989/msi_afterburner_in_game_overlay_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/9_point_likert_scale_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2b9942e537a05ef14dfe3/t/5fc520843c02f22b9db03dff/1606754436756/vuwogerok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc526e2c-72aa-4bdd-9a1c-6997f9032dc7/nidelosum.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_off0000cdae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDAE 4988 bytes
SHA-256: f5bde0822f4b48b0d753178dfd67f75b5e710e1d24c80ae9a129f5c763ec717a
font_01_sfnt_off0000de9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE9C 10584 bytes
SHA-256: 4c34458ff6405f42e3c859c1c38f1ca655ee28d9746fa00fa40277190863e6ba
font_02_sfnt_off000102b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102B4 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333