Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4dabfded284f411…

MALICIOUS

PDF

78.8 KB Created: 2021-03-27 21:54:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: 2a196efc2aebc56745c98cee2ee88ee9 SHA-1: 86dc51645557f3981f0c46a88e6fe20062e076ea SHA-256: d4dabfded284f411175b0a7428a59ce0c10f9c86e8d2e988998a6fe7ebd520b7
94 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. ClamAV and an ML classifier flagged this PDF as malicious, specifically indicating phishing and trojan activity. The document body, though partially corrupted, suggests a lure related to 'basic email writing skills' to entice users to click the embedded URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6520

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://xajibur.ru/award?keyword=basic+email+writing+skills+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444115/normal_605b9c58a8d60.pdfIn PDF document text
    • http://hd-cam-mirror-up1.club/81714990406uea50.pdfIn PDF document text
    • http://nosinoski.shop/sofewumezagadelipijugs08g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490950/normal_60130b318958c.pdfIn PDF document text
    • http://leopards.space/daresisazulevipawafimazo4oys0.pdfIn PDF document text
    • http://drilltech.info/835412121857nbj4.pdfIn PDF document text
    • http://eglo.club/la_compuerta_numero_12_englishu4qf1.pdfIn PDF document text
    • http://thefortykuti.com/9749391679501vz0.pdfIn PDF document text
    • http://fishing-rods2.club/maps.google.com_my_mapsxfrsh.pdfIn PDF document text
    • http://wwwbcpzonasegura-viabcp.com/project_management_specialist_jobsj95pv.pdfIn PDF document text
    • http://gutekixawa.22web.org/rca_ambulance_uniform.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e24c809-44c8-4eac-a6cd-8c54f474f132/principles_of_economics_mankiw_9th_edition_cengage.pdfIn PDF document text
    • http://forolulazo.rf.gd/modern_spanish_grammar_workbook.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/xunobuzosixag.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/roald_dahl_matilda_full_movie_youtube.pdfIn PDF document text
    • http://fanunif.rf.gd/98577436806.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b187ee68-eff0-407f-84ad-6d06e7e0adc3/usps_customs_forms.pdfIn PDF document text
    • http://dilemewenebuzur.rf.gd/88926852881.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8195c533-db71-400e-a765-0831e3f3a291/57325032703.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/50422586614.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/battlefield_2_mod_apk.pdfIn PDF document text
    • http://sufafawujufex.epizy.com/bamife.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/debozepede.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000114e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114E0 5680 bytes
SHA-256: 45f4977d6b4119ae563bee5d7f497380782b11f6218f3bebb5a3296fa2ed3da5

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