Malicious PDF — malware analysis report

Static analysis result for SHA-256 a98c32a81b0d87e5…

MALICIOUS

PDF

71.9 KB Created: 2021-03-29 09:42:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba327efca809fc8c3c7b6f49f50238c1 SHA-1: d87974542e69ae1ea728a46e9af7a5c29ce99fd2 SHA-256: a98c32a81b0d87e5c8a0e06c421c62720b2692e347762bb62f8d192945439162
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. The ML classifier and ClamAV detection strongly indicate maliciousness. The embedded URI likely serves as a lure to a phishing or malware distribution site.

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://midufefew.ru/wix?keyword=dnd+5e+fight+club
    • https://cdn.sqhk.co/wexunaveb/GRMnPih/96462439638.pdf
    • http://limowoduramu.iblogger.org/factory_data_reset_apk.pdf
    • http://kapabifidi.sportsontheweb.net/intoxicacion_fenobarbital.pdf
    • http://xebiniseba.mygamesonline.org/74066707561.pdf
    • https://cdn.sqhk.co/jujadiziga/gf6H2aK/tabletop_tactics_rocket_league.pdf
    • https://static.s123-cdn-static.com/uploads/4470982/normal_5ff8de2b93545.pdf
    • https://cdn-cms.f-static.net/uploads/4465709/normal_6027fb01c8bf4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zunasolaxugi.epizy.com/7118453015.pdf
    • http://faloboxodutak.epizy.com/51987947001.pdf
    • http://rikutugaxugapib.epizy.com/19432708690.pdf
    • http://gitogopafo.epizy.com/29006478273.pdf
    • http://mujedofagogi.epizy.com/basuwitepiwis.pdf
    • http://duvovopuma.epizy.com/cottage_food_law_in_missouri.pdf
    • http://gavativu.epizy.com/60487271713.pdf
    • http://keviful.epizy.com/73014316441.pdf
    • http://zigemevopowab.epizy.com/dubai_metro_stations_map.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_off0000dc2b.bin
1ce8e81ed549ad55506f1c51346124933c40898f1ca152b9c715a776047cfa42		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2B 5064 bytes
font_01_sfnt_off0000ed75.bin
e2149614210f75234357a130f42d78c1fc945c63f98bd9117a4d1a3bd13c19b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED75 11024 bytes

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