Malicious PDF — malware analysis report

Static analysis result for SHA-256 85fcc10e25734e50…

MALICIOUS

PDF

80.3 KB Created: 2021-03-20 16:07:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f607bddfdb415c6480b8eccf09f5c468 SHA-1: 29669b9a2e4c12213a5c418ba68d578faeb893e2 SHA-256: 85fcc10e25734e500ad31225740d364f9b1172da5263f516a84eb0e0c8378fa9
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware delivery. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jumiwimov.ru/strik?utm_term=she+has+that+girl+boss+hustle+meaning
    • http://vixitatevejiwo.getenjoyment.net/burley_dlite_x_australia.pdf
    • https://cdn-cms.f-static.net/uploads/4384851/normal_601079edbdd2a.pdf
    • https://cdn-cms.f-static.net/uploads/4460975/normal_603c6fd32fae6.pdf
    • https://cdn.sqhk.co/sobetevod/pgMEjih/zawamijonegonumur.pdf
    • https://cdn-cms.f-static.net/uploads/4476943/normal_60382f727b621.pdf
    • http://ziwigosopijulal.mygamesonline.org/dowilubozedosaf.pdf
    • https://cdn.sqhk.co/mowasikuso/jfgfrjg/64903492648.pdf
    • https://static.s123-cdn-static.com/uploads/4369784/normal_5fcc45e64e97a.pdf
    • https://static.s123-cdn-static.com/uploads/4490250/normal_5febca4318bd3.pdf
    • https://cdn.sqhk.co/gazejuruni/d6ghjcR/best_lord_krishna_flute_ringtone.pdf
    • https://cdn.sqhk.co/guwezasov/fWhanVo/stunt_bike_tricks_master_extreme_trial_stunt_game.pdf
    • https://static.s123-cdn-static.com/uploads/4407299/normal_5fee1df037452.pdf
    • https://static.s123-cdn-static.com/uploads/4495042/normal_5ffa359fa82e3.pdf
    • https://cdn.sqhk.co/woteruzid/fYjauwo/22875797456.pdf
    • https://cdn-cms.f-static.net/uploads/4392869/normal_60328162da5b0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pokatutabojew.rf.gd/mipovifu.pdf
    • http://nawopezor.rf.gd/tupuwudunibum.pdf
    • https://f3ea461b-95fd-44cf-949c-5afda193840f.filesusr.com/ugd/a48928_91a894af2dce4a35ac8414d9e4b19f7a.pdf?index=true
    • http://davofunup.onlinewebshop.net/daxetaresanuguzeribobe.pdf
    • https://27475d5a-2981-497d-8cd5-0c310ef10f8b.filesusr.com/ugd/9cb927_faa736eed77b4d598cf46baf152fe3db.pdf?index=true
    • http://tevefetilojas.atwebpages.com/what_is_the_best_temperature_for_a_whirlpool_refrigerator.pdf
    • https://11627308-8c8f-4f08-99ed-0ad85160907d.filesusr.com/ugd/682d1c_41b97baa5c9a440b8ae5c9cd73a229eb.pdf?index=true
    • http://xupebina.epizy.com/xidodoxufo.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_off0000fbc4.bin
f844e2827b1f7633cee26187e369a83f3753e60686902fd2a6e9a1acd4cf1642		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC4 5344 bytes
font_01_sfnt_off00010dc0.bin
f95195cd19365ba2ccc2713ad3d07853e8c83e96e1fbd4f73b2303f8730c953e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC0 11452 bytes

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