Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde96ac6914c18f2…

MALICIOUS

PDF

74.0 KB Created: 2021-03-06 11:52:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d80e31593a9265460e9ada76fa58d261 SHA-1: 148303cf2bc6c6adad52bc638534e9f4d8bf855a SHA-256: bde96ac6914c18f2d63b2eb690e48ec53462a154aa1c064b4449123c3b443f2a
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicate a high probability of maliciousness. The document contains a large number of external links, many of which point to potentially malicious domains, suggesting a link farm or phishing attempt. The presence of embedded URLs further supports the malicious intent, likely to redirect users to external sites for exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://soxebez.ru/strik?utm_term=vizio+s3821w-c0+remote+code PDF link annotation
    • https://kapelasijad.weebly.com/uploads/1/3/4/3/134312752/e2ffa9c7ba0.pdfIn PDF document text
    • http://raisinsapp.pro/8289580592622klu.pdfIn PDF document text
    • https://cdn.sqhk.co/wabasenenem/jrjgggi/rizobabi.pdfIn PDF document text
    • http://mon-cmso.best/66917493306e8in7.pdfIn PDF document text
    • https://pamigewome.weebly.com/uploads/1/3/4/6/134631685/485682.pdfIn PDF document text
    • https://dafizigupiteg.weebly.com/uploads/1/3/4/4/134492389/291270f34116bb8.pdfIn PDF document text
    • https://cdn.sqhk.co/bezakebijuk/hf153HJ/81960952160.pdfIn PDF document text
    • https://cdn.sqhk.co/businaxidare/uiiQpJm/energy_blast_anime_gif.pdfIn PDF document text
    • https://zomafada.weebly.com/uploads/1/3/4/7/134772300/detamomu-kugikekexazowas-gixep-wozipabajar.pdfIn PDF document text
    • https://xedawazusaxe.weebly.com/uploads/1/3/2/3/132303108/nudorimum.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://b23183eb-b2e5-455e-bc25-91fac1efd10f.filesusr.com/ugd/cc14e4_f53c442ff48c48a59bb0f931f670bb89.pdf?index=trueIn PDF document text
    • https://e1cd7dcf-8988-4be8-9b1a-722367337987.filesusr.com/ugd/6203b9_25c0aee293a34c748b643483486c8632.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/51464817032.pdfIn PDF document text
    • https://626fb5af-1d67-41cb-86ce-204163677ff0.filesusr.com/ugd/9d869b_e72def07c5884b28b5e832758071abeb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/how_to_day_trade_bitcoin_on_cash_app.pdfIn PDF document text
    • https://83372c7a-1065-4b07-8284-b64562b46e84.filesusr.com/ugd/035489_116f327819f24f54adb8bae9b0f48862.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wozoxub/paxukovilulabokeruvufodes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/024e3be7-ba07-438c-ad4f-ec388e485cf3/fifty_shades_of_grey_author_in_wattpad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70dff1e0-4b83-4f8b-b021-5147bea5c548/how_much_does_a_kirby_vacuum_cost.pdfIn PDF document text
    • https://51f47fa2-20f7-4ec4-bb91-8ae4aee689b4.filesusr.com/ugd/917232_c76ebb794bfc4fcebfb349471bd591e1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sizabo/zimulevikodosukowefimed.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_off0000e3b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B3 5664 bytes
SHA-256: f41d9799ab4b704b5a268461c432bc1d0ebe0620b596474c7ca9efd609588066
font_01_sfnt_off0000f715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF715 10504 bytes
SHA-256: 7dd375c045f1a4f3445a291ed4c97b6d9739c5d2099261cc3af8f096971107fe

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