Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd4a21f52141c5ec…

MALICIOUS

PDF

72.7 KB Created: 2021-03-27 21:42:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 16bcbe35595244cb906af48326364db0 SHA-1: 332678d1ad007785fbe2ee45f90ce772b88ed206 SHA-256: dd4a21f52141c5ecfa2ba115075587758930c5076c0b4b95d9d459ba2544922c
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as sentencing guidelines. This URL is likely used to host malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://gimoguvi.ru/123?utm_term=wasting+police+time+sentencing+guidelines PDF link annotation
    • http://zizaburixakog.iblogger.org/72207849833.pdfIn PDF document text
    • https://cdn.sqhk.co/kurotevu/jghdL5Q/speed_car_game_download_app.pdfIn PDF document text
    • https://cdn.sqhk.co/butituguxur/eijEXja/59523907441.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/PibLjcP/clothes_worksheets_clipart.pdfIn PDF document text
    • https://cdn.sqhk.co/gutifusuf/3hd9Zha/tank_defence_army.pdfIn PDF document text
    • http://fasumaxupul.iblogger.org/dorupajatuxefiroju.pdfIn PDF document text
    • https://cdn.sqhk.co/vuveleni/jaIRXvK/38454786198.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/yUjhOie/kidafodalatariforinoporeb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://benamow.myartsonline.com/seminar_on_problem_solving_in_mathematics.pdfIn PDF document text
    • http://bojakufuxelev.epizy.com/balance_sheet_analysis_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/acdsee_portable_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/jdk_8_filehippo_32_bit.pdfIn PDF document text
    • http://kimitumepogamom.epizy.com/solvents_used_in_non_aqueous_titration.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/dekalb_county_il_police_reports_online.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/wonezefubebalewikopub.pdfIn PDF document text
    • http://zezunas.epizy.com/56794451586.pdfIn PDF document text
    • http://fopugaxug.rf.gd/gukajixuvopokital.pdfIn PDF document text
    • http://bibuxitagarilum.rf.gd/96734966615.pdfIn PDF document text
    • http://riwugenesujo.epizy.com/batman_vs_superman_wallpaper_4k.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/bejixisij.pdfIn PDF document text
    • http://xuvuzonixo.onlinewebshop.net/conversation_anglais_traduit_en_franais.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_off0000dcce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCE 5312 bytes
SHA-256: bbc4f932321bd5c645685c057131c009da2210b91f00fcf8c1fb575a6f8b40c1
font_01_sfnt_off0000eede.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDE 10956 bytes
SHA-256: 81d137af3be3339c4e1fd672ab022dc189fe8a4b4d146055140480a8b1baf4af

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