Malicious PDF — malware analysis report

Static analysis result for SHA-256 c31ee4ad6e0e1a11…

MALICIOUS

PDF

71.3 KB Created: 2021-02-14 23:16:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 548da456022c73d22ce2e422ea234f1b SHA-1: dfc2744abd78e19133028659875f595c0cffd32f SHA-256: c31ee4ad6e0e1a1191c834581173bfccff01cbe662afd5a6ee75c4065c678981
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a malicious domain, likely to host a phishing page or download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though partially corrupted, suggests a lure related to 'Cinco de Mayo history channel worksheet answers'.

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=cinco+de+mayo+history+channel+worksheet+answers
    • https://cdn.sqhk.co/borefigux/ihifcgf/jopirelifiwobik.pdf
    • http://wevesapawuzu.22web.org/gba_emulator_for_mac.pdf
    • http://republvinb.fun/repamasulidiinqav.pdf
    • http://max-lifting.store/fimogipowikuzazufux7mz9.pdf
    • https://static.s123-cdn-static.com/uploads/4476437/normal_5ff140e8c9811.pdf
    • http://salebox.shop/music_sheet_symbols_and_meaningwpacy.pdf
    • https://cdn.sqhk.co/levuzivanu/ibjghhe/cnc_pilot_3190.pdf
    • http://digitalmedialit.com/duvaketvr62n.pdf
    • https://cdn-cms.f-static.net/uploads/4418391/normal_600a583b44e6f.pdf
    • https://cdn.sqhk.co/kulizuxekume/uuujb8K/best_sensitivity_for_pubg_mobile_emulator_2019.pdf
    • http://freshremont.com/buoyancy_example_problems_with_solutionshux49.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rodakarugupoko/money_budgeting_worksheets.pdf
    • https://s3.amazonaws.com/gajakelegeza/addressable_fire_detection_system.pdf
    • http://wevedikelu.epizy.com/selenium_xpath_cheat_sheet.pdf
    • https://s3.amazonaws.com/nitidadufetenu/additional_information_artinya.pdf
    • http://dukizovisepo.rf.gd/suzuvu.pdf
    • https://s3.amazonaws.com/wixamupelinere/31703667943.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db4c.bin
ec926ad81e0a93455b0de63d7eafa35175d5cf3ed79510cc300c14aa79dc328b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB4C 5344 bytes
font_01_sfnt_off0000ed59.bin
449e65b770fb3ebdc20524ebc5d7ff746f59a900d7b269437a0b5170cb731dfd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED59 10024 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.