Malicious PDF — malware analysis report

Static analysis result for SHA-256 e043b327723bcd0b…

MALICIOUS

PDF

80.1 KB Created: 2021-03-29 21:23:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a822913fbfe8fe077c72a708d6436f7 SHA-1: 0e221da1993f83c5c93510e3e137f464ffe9ac86 SHA-256: e043b327723bcd0b9eeecc6da545a73c3dccad09ed9bd792a0afc3b8706b9eeb
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV and ML classifiers flagged this PDF as malicious, indicating a high probability of malicious intent. The document body, though heavily obfuscated, contains references to 'Donkey Kong Country Returns IGN Walkthrough', suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://nipisod.ru/strik?utm_term=donkey+kong+country+returns+ign+walkthrough
    • http://dipazekonowa.mypressonline.com/english_english_tamil_dictionary_free_download.pdf
    • http://poposiruta.mywebcommunity.org/vaxuw.pdf
    • http://gadatoreneperil.mygamesonline.org/76576770161.pdf
    • http://korogesubelokut.mypressonline.com/37387482641.pdf
    • https://static.s123-cdn-static.com/uploads/4478933/normal_5ff582c4de02f.pdf
    • http://usene.xyz/how_to_write_a_montage_in_final_draftclq8n.pdf
    • http://a-trvl.ru/132299506980zkdj.pdf
    • http://fonixeguga.mywebcommunity.org/bring_it_on_home_to_me_ukulele.pdf
    • https://static.s123-cdn-static.com/uploads/4448345/normal_60033e4737f68.pdf
    • https://cdn-cms.f-static.net/uploads/4404112/normal_603239f51f8f0.pdf
    • https://static.s123-cdn-static.com/uploads/4385235/normal_5fee7b226bf57.pdf
    • http://difozoxezepi.getenjoyment.net/ascii_code_table_in.pdf
    • http://monetobo.iblogger.org/10521610245.pdf
    • http://zotikarida.medianewsonline.com/biogas_plant_information_in_urdu.pdf
    • http://zisapawiwako.mypressonline.com/cutting_edge_pre_intermediate_book.pdf
    • https://cdn-cms.f-static.net/uploads/4450419/normal_5fe752abd36eb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zozupajekuledus.myartsonline.com/49175550457.pdf
    • https://s3.amazonaws.com/venunamazozuzo/93606313647.pdf
    • https://s3.amazonaws.com/regufojalojaza/24009293792.pdf
    • http://gofapebilim.rf.gd/96592990152.pdf
    • https://s3.amazonaws.com/juliziwojatige/71713324389.pdf
    • https://s3.amazonaws.com/sonutopexaramuf/wemojuvazobipowiseranew.pdf
    • http://nixevafuzija.epizy.com/piludejanixowetetax.pdf
    • http://paguxesij.myartsonline.com/online_book_site.pdf
    • https://s3.amazonaws.com/fobupojowojon/dekazodinopilagile.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_off0000f764.bin
250637106f7cf76b7c53cec9bf832b692d627d9a23f13bc386ba5cfd96c74ada		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF764 5320 bytes
font_01_sfnt_off000109a1.bin
8e4ff5be6259e8aa80dc0432fae609838b1f9b10076e034730270655b981074e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109A1 12196 bytes

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