Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4024848296b49c…

MALICIOUS

PDF

79.5 KB Created: 2021-04-01 18:22:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71e976192b25d1ba6ae8cd54ff28107e SHA-1: 1613b143a1416e6d44eaf5f51cc4900a059672fd SHA-256: 2f4024848296b49c3cb94b9ed829795b0a2afeb8cedc7d4edd1e64a2b190c722
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs that mimic search engine results, aiming to trick users into visiting malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of multiple suspicious URLs suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://seumenha.ru/strik?utm_term=does+texas+roadhouse+have+early+dine+on+saturday
    • https://kadonomu.weebly.com/uploads/1/3/1/4/131454950/ff583e.pdf
    • https://rezedutusijilik.weebly.com/uploads/1/3/2/7/132710703/zojow-womoluze-revazulebav-vizobovikilix.pdf
    • https://tevomijirurefo.weebly.com/uploads/1/3/4/8/134846864/0b565ba5e.pdf
    • https://lomimasexoguxi.weebly.com/uploads/1/3/4/7/134736135/sigosaka.pdf
    • https://cdn-cms.f-static.net/uploads/4376852/normal_602dab6941dc5.pdf
    • https://cdn-cms.f-static.net/uploads/4478703/normal_6041c1d12aa62.pdf
    • https://static.s123-cdn-static.com/uploads/4414500/normal_60000501ba75b.pdf
    • https://cdn-cms.f-static.net/uploads/4444092/normal_5fea2f459600c.pdf
    • https://gekiwudev.weebly.com/uploads/1/3/4/7/134769606/3a1830c9861.pdf
    • https://cdn-cms.f-static.net/uploads/4450864/normal_6017007973411.pdf
    • http://dajewerudo.22web.org/knockout_js_pass_data_to_template.pdf
    • https://static.s123-cdn-static.com/uploads/4427783/normal_5fccbbf71440f.pdf
    • http://xugilerasifoveg.22web.org/andreas_kalcker_book.pdf
    • https://static.s123-cdn-static.com/uploads/4423195/normal_60061559742e4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://tanoxoxafobin.epizy.com/jigufabimugiruka.pdf
    • http://juwebud.epizy.com/vobaluzifo.pdf
    • http://jawuguv.epizy.com/talelulugewunowizolej.pdf
    • http://sokogukuvuxe.rf.gd/9075265292.pdf
    • http://jefevuxivux.epizy.com/14744411885.pdf
    • https://s3.amazonaws.com/nowokil/73646768893.pdf
    • https://s3.amazonaws.com/zifozujiwi/4150921410.pdf
    • http://safodur.epizy.com/windows_defender_update_for_win_10.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea31.bin
193cea8d3d47387b2cfd6157e46283925720a3da9f4992bc59f9540636ef935a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA31 5024 bytes
font_01_sfnt_off0000fb47.bin
e8ad9b747b14eb9bfe6cbc29ce22e671f66dc9471f0fd6d792df49c1c1393c2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB47 11416 bytes
font_02_sfnt_off0001220e.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1220E 4324 bytes

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