Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce138aedac1b792…

MALICIOUS

PDF

85.0 KB Created: 2021-04-13 19:41:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ba9ecc1b4e3dd2e0ec1ff4ecaa2097b3 SHA-1: 5dc5c6588e3ce6596a3f4cd06cc340f27dc7f381 SHA-256: 5ce138aedac1b7924f50699f5474dbed19664ff3e536b31aa0339cb7e4fc284d
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://nipisod.ru/strik?utm_term=baby+bjorn+travel+cot+sheet PDF link annotation
    • https://cdn.sqhk.co/jurufovowufu/gfgoPQM/sacrifice_meaning_in_tamil.pdfIn PDF document text
    • http://pegejoruvufiron.sportsontheweb.net/19950000027.pdfIn PDF document text
    • https://cdn.sqhk.co/nowonipewo/eDBWgdF/iphone_map_navigation_voice_language.pdfIn PDF document text
    • http://vukufitu.mywebcommunity.org/stock_market_technical_analysis_chart_patterns.pdfIn PDF document text
    • https://cdn.sqhk.co/mosepoxik/jc4hfXU/vefanilixesiraduzakexipa.pdfIn PDF document text
    • https://cdn.sqhk.co/jidevumedure/hcjeUPH/what_do_christian_symbols_mean.pdfIn PDF document text
    • https://cdn.sqhk.co/boxadiweteve/jfjf9fH/metric_conversion_worksheet_2_answer_key.pdfIn PDF document text
    • https://cdn.sqhk.co/mopomotop/gcij1ha/idle_city_building_tycoon.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/hfGjcqK/best_hearthstone_deck_tracker_ios.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/ti_google_chrome_mi_nht_cho_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/97519931156.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/24044053694.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/cyberpunk_red_classes.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/68297709077.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/government_of_alberta_separation_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/nogivodalamopixa.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/82994930536.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/coraline_book_review.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6BF 5316 bytes
SHA-256: f769f2ae79bddcce2204e81e87c80a3cb8f0664b47667299928259f6848f0b92
font_01_sfnt_off000108db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108DB 11908 bytes
SHA-256: 3438d5e84f477a56b14e586c3d61635998db6dd5dcb22319cb6a3ed8d9a98551
font_02_sfnt_off0001311b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1311B 16392 bytes
SHA-256: 954f30c1cce2e3a00f07cb0ababb04bf86a3a3c34ed8da2fc782bdc014231390

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