Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7c249256614c53…

MALICIOUS

PDF

186.2 KB Created: 2021-03-09 05:51:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ae1d0c35eefe3575440ac7036b57d07 SHA-1: e79ae9bfad698ec16ca2e312da64072333d6d195 SHA-256: ee7c249256614c53cebc2e47ddb2a91280359f85979d8d1173b26b16ffc28285
112 Risk Score

Malware Insights

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

The file is a PDF document that uses an invoice lure to trick the user into clicking a link. The ML classifier and ClamAV detection strongly indicate maliciousness. The embedded URL points to a suspicious domain, likely serving a second-stage payload. No scripts were extracted, but the PDF structure and heuristics suggest it's designed to exploit vulnerabilities or deliver malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://xezojetit.ru/123?utm_term=invoice+wise+sales+report+sap
    • https://dizakevusarebiz.weebly.com/uploads/1/3/4/5/134581037/lowoxofax.pdf
    • https://cdn.sqhk.co/riwifesineji/bFZjgih/nbc_sports_app_roku_4k.pdf
    • https://fivakamine.weebly.com/uploads/1/3/4/3/134384559/bafufeluroluzu.pdf
    • https://static.s123-cdn-static.com/uploads/4391642/normal_600582fab4002.pdf
    • http://jugapus.sportsontheweb.net/autocad_3d_mechanical_practice_drawings_free_download.pdf
    • http://inscarusa.info/nakolaxodagow2jkq6.pdf
    • https://cdn.sqhk.co/mumaxifup/djVSvh5/mobily_fiber_apply.pdf
    • https://static.s123-cdn-static.com/uploads/4489415/normal_5fee4e456ec03.pdf
    • https://cdn-cms.f-static.net/uploads/4462362/normal_6043871b72143.pdf
    • http://rulabepotinujeb.mypressonline.com/wunud.pdf
    • https://bakuwosir.weebly.com/uploads/1/3/0/8/130874569/5875118fcd1.pdf
    • http://jelojutu.sportsontheweb.net/19228188103.pdf
    • http://rivepozepuxar.mywebcommunity.org/pinavobatefikut.pdf
    • https://sonanibiforopo.weebly.com/uploads/1/3/2/7/132710732/sogimabilo.pdf
    • https://cdn-cms.f-static.net/uploads/4483362/normal_5fda767a318b2.pdf
    • http://theplafond.xyz/kung_fury_streaming_ita23b5z.pdf
    • https://cdn-cms.f-static.net/uploads/4464532/normal_602b76b62cc4a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vilepobafomunow.atwebpages.com/how_to_cure_chilblains_naturally.pdf
    • https://uploads.strikinglycdn.com/files/ffd9e8f9-991d-4661-b24c-6c7552aa697a/data_analysis_techniques_in_business_research.pdf
    • https://uploads.strikinglycdn.com/files/d4845e00-aeb8-4640-83b5-7549c04030e3/junonap.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_off00029ffc.bin
5cbf06fed4eb8a60832fd09b36f6c138ad14a5e90c395424589cb0061fb96c09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29FFC 5016 bytes
font_01_sfnt_off0002b131.bin
07fdce5064b05e79c94184490dc7f87addb271fd9458213883df2c873a9a45ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B131 13132 bytes

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