Malicious PDF — malware analysis report

Static analysis result for SHA-256 04de0aa140209df4…

MALICIOUS

PDF

210.9 KB Created: 2021-06-27 22:18:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c41ffb53af233d27ba0a880e64ca1d93 SHA-1: 7dc30cdf6531567062d2263e57212eb3405516e7 SHA-256: 04de0aa140209df4b870ebc59422dfb11365da43a460461ff1398db01113a1b3
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains multiple links pointing to compromised websites, likely intended to trick the user into downloading a payload. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely provides instructions to decrypt a password-protected archive, a common tactic to bypass gateway security.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9852

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/344iema91olel7rvlcnl5a5m5d/faxalakenuri.pdf
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/49e1033c39f3e8a72a9ab8de36a1ea31/80707836444.pdf
    • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/sles6lt9pu3k3lnh2bnpuqoc2j/86441737842.pdf
    • http://parvazyab.net/basefile/api203/files/pafigigugisutekov.pdf
    • https://kodcomputers.ro/2664/uploads/zutabepixusi.pdf
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cadf8511c8f---40218587724.pdf
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079174e34c7b---guwivamozizulaguvumosif.pdf
    • https://akapacha.com/userfiles/file/vaxewikabetajinitulasuxa.pdf
    • https://habibitours.com/ckfinder/userfiles/files/19336217333.pdf
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160afcb0243973---lefowizepusolokopuxojo.pdf
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160708df3cb8a1---75616102996.pdf
    • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609da70c3a151---69530502801.pdf
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607252bbab189---deliwaporuwiniwaxader.pdf
    • http://mini-garden.ru/userfiles/file/tadomax.pdf
    • http://ehoron21.mn/uploads/files/kuzaxijizabif.pdf
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/n7vo7b2gquj2vja6au1klgd2t1/88004072364.pdf
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/74b7b46c6af3fdb83cd5791cda38265a/xokodulevoxufimitit.pdf
    • https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077b85471dd9---megusudepemawugu.pdf
    • http://aaaexpressheating.com/userfiles/file/22376671336.pdf
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160867b7966ae8---zevuredeb.pdf
    • http://gaziogluenerji.com/images_upload/files/16234129511.pdf
    • http://chothuexehochiminh.com/userfiles/file/durufuxipaxixesunid.pdf
    • http://techscreening.com/userfiles/files/95166828592.pdf
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085063e019ed---tugazabozol.pdf
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/ejromr912rabp8lu6iqh5v1s6l/59904398247.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=indus+valley+civilization+was+discovered
    • 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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002d8da.bin
b05810c7c5017ac519a7406763c37a13355a80b316a4d78f19dc706a518afbc6
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8DA 20012 bytes
font_01_sfnt_off00030bf3.bin
aab968417d41f74b78eb512d609a1c4ef0ee6c4a1b22d81ec546fa7c4ed0a3af
pdf-font-stream PDF embedded font (sfnt) at offset 0x30BF3 10740 bytes
font_02_sfnt_off000324e6.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x324E6 16792 bytes