Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f45a1c0c9db38d6…

MALICIOUS

PDF

70.2 KB Created: 2021-01-17 18:07:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 9982f6b9720d7c55e42b71b2a1cb2deb SHA-1: 5645c66bfd11e77b87546eca87a6b5341595b9d9 SHA-256: 3f45a1c0c9db38d659c1f9e70c5a6a5e7c3a5095ddd5edcaac0168f07c7c1eb9
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://traffset.ru/123?utm_term=national+grid+marketplace+thermostat PDF link annotation
    • https://cdn.sqhk.co/kagelemovo/chhMibY/zugiporowarizujetufapiwib.pdfIn PDF document text
    • https://fuzifilagowiw.weebly.com/uploads/1/3/4/6/134698760/1552621.pdfIn PDF document text
    • http://jeruxawi.iblogger.org/child_care_interview_question_and_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/rejibebadit/Yhggjsk/techno_music_online_radio_stations.pdfIn PDF document text
    • https://jutokikifugata.weebly.com/uploads/1/3/1/0/131070124/puxadarame.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/jiihrgj/kurinagoduvomaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://litufowanukoro.epizy.com/decimal_place_value_for_4th_grade_worksheets.pdfIn PDF document text
    • http://zuxekesimulir.epizy.com/another_day_without_your_smile_song.pdfIn PDF document text
    • http://segixiw.epizy.com/42231562276.pdfIn PDF document text
    • http://difugarulid.epizy.com/kelemilipamolef.pdfIn PDF document text
    • http://bojibag.epizy.com/jopumivekimodulekova.pdfIn PDF document text
    • http://jugorufu.epizy.com/ajay_yadav_anesthesia_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/distressed_debt_analysis_customizable_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/fikanuk.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/opera_mini_browser_4._2.pdfIn PDF document text
    • http://tegofiv.epizy.com/carry_forward_subtraction_worksheets.pdfIn PDF document text
    • http://furugavasipif.epizy.com/25969687558.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/28793932605.pdfIn PDF document text
    • http://mujunuge.rf.gd/pajawulubumipek.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_off0000d321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD321 5520 bytes
SHA-256: 83ea6a8ad2277c8a817e267934e3bfb751de051ae988a902be565a018473d9b6
font_01_sfnt_off0000e5c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C1 10964 bytes
SHA-256: 0f2a19d9598ec818e8693dd1e83fff6978c414129ee126174594d347f605d6c4

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