Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cf02c7f4912a49f…

MALICIOUS

PDF

77.4 KB Created: 2021-05-14 05:53:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 231c756bc684ad26593ab08681b6ac11 SHA-1: 9380d319f1d717f167eb739aa2602eba6873e5fd SHA-256: 1cf02c7f4912a49fcc17249f5bc7ffcdf85fd3dcc1130bd5948ba14a4959dac7
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs users to a URL associated with downloading video editing software, likely as a lure. ClamAV detection and ML classification strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the presence of embedded URIs and the nature of the lure suggest a phishing or malware distribution attempt.

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://archism.ru/uplcv?utm_term=movavi+video+editor+tanpa+watermark
    • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607010ead60a5---10462157906.pdf
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/76lcg6m284k9ae11cvb6absoq3/somulunogosubinitov.pdf
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/16075c5c3651ef---kegoxafukoxavevove.pdf
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/160766935ee5f3---togobibetopudazeba.pdf
    • https://aonetreks.com/uploads/file/92505680086.pdf
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1609285a5caefc---79636625752.pdf
    • https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/8eb67b5c0dd3d13057c55c78f9f13e5e/nivavefisudi.pdf
    • https://annjulieskarpmo.com/userfiles/file/kalozoda.pdf
    • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/95nt6ngeruv63klbdpuf61aqmb/83496779242.pdf
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16078e5d8f2774---35288607598.pdf
    • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/hftkp8c0dlp892fa8ul2q5bil5/84933536898.pdf
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/b0ebb4a6ce54e1a9fcfd660925fbb617/vitemepudederuzuxidogus.pdf
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160862a0d8e030---jobawafalida.pdf
    • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/6c1od6jkkvtp50nsjuntoirosc/foneguvabofelo.pdf
    • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/ir7qphodd6b1ju78elte9816sv/lukiraverinoj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e756.bin
23c3e84318dccef36bdf483297c6dbe116c21490a60022c52e106141393551bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE756 4904 bytes
font_01_sfnt_off0000f7fd.bin
f6d80f7167a9155bfa44e2260ea64802abd8bd6fb3b70de56ab4a0fc66bf3e32		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7FD 10012 bytes
font_02_sfnt_off00011a45.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11A45 4324 bytes

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