Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb14a05619793fdf…

MALICIOUS

PDF

77.1 KB Created: 2021-04-01 09:22:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 1fdfdeeb463158408263358cd9e04a1c SHA-1: de5ab3dcdfe2e13628fef07b09426736eba65224 SHA-256: eb14a05619793fdf6ab4ab92b87c73713732bb50660ea0475ab6c04482f90b30
96 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading further malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xajibur.ru/award?keyword=digital+electronics+gate+questions+pdf PDF link annotation
    • https://cdn.sqhk.co/romekeka/iaif8jg/thrift_stores_open_near_me_tomorrow.pdfIn PDF document text
    • https://cdn.sqhk.co/daluzowinasu/riEklia/38763937848.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469634/normal_6034bf1b702c6.pdfIn PDF document text
    • http://wotomonexu.22web.org/37636535630.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452618/normal_6015b5e91c2b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369660/normal_602e9a1edbdae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453890/normal_6031f3346d5df.pdfIn PDF document text
    • https://cdn.sqhk.co/natokaze/F0ZheNu/brilliant_bright_meaning_in_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/ravawiku/Vt5olao/stickman_sword_fighting_3d_apk.pdfIn PDF document text
    • http://getiwiviji.22web.org/amor_eterno_acordes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381752/normal_605abb1795c5b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gozukuga.epizy.com/60818040365.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/catalina_wallpaper_4k.pdfIn PDF document text
    • http://pixutixiziv.epizy.com/good_carbs_list.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/fiber_cable_types.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/number_line_worksheets_kindergarten.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/g_b_ka_full_form.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/jogavuk.pdfIn PDF document text
    • http://pabudixobo.epizy.com/86652750592.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/critical_thinking_examples_at_work.pdfIn PDF document text
    • http://lojuwuwa.rf.gd/kendo_grid_tooltip_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/rexodedesopodikufugaj.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB62 5448 bytes
SHA-256: cd4218e6cb4d4a26faf1921580bda13d3ad08ba9fcdd5b53fec5aabbd6a06358
font_01_sfnt_off0000fdf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF7 11532 bytes
SHA-256: bbfe589db70643bd5e4b68dec80a4f709fb54ea78a1cc8cc1cc771c00e35b8ab

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