Malicious PDF — malware analysis report

Static analysis result for SHA-256 862ead5b2fe1f3f3…

MALICIOUS

PDF

71.8 KB Created: 2021-02-18 07:50:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b7a1cb5b73513b1b67d395e204ae6fef SHA-1: a58fde5775e3a15120318856339cb350f9a32c15 SHA-256: 862ead5b2fe1f3f325475d3a67cc76c1c0dcefb52561cef9058bf262ef88282f
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-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://druttle.ru/wix?keyword=d%2526d+5e+templates PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476152/normal_5fd78b89f305c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482020/normal_5fd87fc4ddac6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403687/normal_5ff64c1b6a6ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370266/normal_6013bf993639b.pdfIn PDF document text
    • https://cdn.sqhk.co/lasokixon/Vzpji31/iki_kisilik_ates_ve_su_5_oyununu_oyna.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418001/normal_600f5cf9a34fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372085/normal_600ca0a114686.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488569/normal_5fd2aee05ffe2.pdfIn PDF document text
    • https://cdn.sqhk.co/rekosiseweno/kjgjghf/wupikesexinowumux.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476275/normal_5feb3ca745e68.pdfIn PDF document text
    • https://cdn.sqhk.co/nazujovo/gcBifXM/boom_beach_hack_tool_v_3._0._7.pdfIn PDF document text
    • https://cdn.sqhk.co/vegapagir/iZihhaE/color_wheel_hex_online.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gubadix.epizy.com/pudonuweniladimekasi.pdfIn PDF document text
    • http://vusevupitiwo.rf.gd/bootable_usb_windows_7_setup.pdfIn PDF document text
    • http://wuzafup.rf.gd/maraudon_quest_guide_vanilla.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_off0000e183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE183 4156 bytes
SHA-256: d46272a35c141788e45a942f60d3ac75eba256168db5716376ff56f0f84bb3df
font_01_sfnt_off0000efb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFB1 10284 bytes
SHA-256: a4b89b2012472249a85e02a7744d1071886900de12b6df62c209ddf03cbd9536