Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee49223dfba75dc8…

MALICIOUS

PDF

122.7 KB Created: 2021-03-29 00:24:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf7517868e6aa3647d8c6201102728f8 SHA-1: dc12f9095238dbffc5cc8d6141fa0ee718ccd8a1 SHA-256: ee49223dfba75dc8ddad64ff6bd015cce8f0c3bf23ab769cfa7218b0443b43b1
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of external URIs suggests an attempt to download or redirect to a malicious payload.

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://jacksth.ru/strik?utm_term=how+to+comfort+a+jewish+mourner
    • https://gejidodedawo.weebly.com/uploads/1/3/4/0/134018108/3338139.pdf
    • http://zegevuk.22web.org/como_se_reza_el_rosario_dela_divina_misericordia.pdf
    • http://borejukeluteva.mygamesonline.org/what_does_informal_imperialism.pdf
    • http://dasiwujupuna.sportsontheweb.net/activity_diagram_symbols.pdf
    • http://wolifote.getenjoyment.net/dependent_variables_in_research.pdf
    • http://vemelaribox.getenjoyment.net/capital_expenditure_examples.pdf
    • http://suziterunedoloj.sportsontheweb.net/wegememo.pdf
    • https://radumudoxelis.weebly.com/uploads/1/3/4/2/134235428/vobid_katimufu.pdf
    • http://sipipewawezizuf.getenjoyment.net/how_to_remove_devices_from_ue_boom.pdf
    • http://kivexuvuripamo.iblogger.org/zoom_h4n_pro_bedienungsanleitung_deutsch.pdf
    • https://zadopelujon.weebly.com/uploads/1/3/4/8/134884154/lasalikitiboloruru.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wizuluworafid/the_maze_runner_2014_cast.pdf
    • http://noroved.myartsonline.com/19163189826.pdf
    • http://polilofu.onlinewebshop.net/englisch_bung_simple_past.pdf
    • https://s3.amazonaws.com/pomaxa/79107614261.pdf
    • http://vupafigimewex.rf.gd/rural_agricultural_marketing.pdf
    • https://s3.amazonaws.com/tosego/96243473795.pdf
    • http://nununad.myartsonline.com/fomirujeb.pdf
    • https://s3.amazonaws.com/xiwevitox/69234626917.pdf
    • https://s3.amazonaws.com/xazarujokemus/written_speech_on_pakistan_in_english.pdf
    • http://kerexiref.onlinewebshop.net/js_open_blob_in_new_tab.pdf
    • http://zurorunurem.epizy.com/vufuwugutodam.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_off000195f1.bin
56a5077c97b57d57baf17229cea122b1f1798ce3948c97815c478f3996a489eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x195F1 5216 bytes
font_01_sfnt_off0001a797.bin
757b74005e576024da120db7a9e2b4199488f5a007f2714f921f55a09bcb011a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A797 15988 bytes

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