Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d3bb9becedf44ed…

MALICIOUS

PDF

78.4 KB Created: 2021-04-04 03:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0baf0dff707d7afcd0e14e1a162e2d3c SHA-1: 7116adcecd862a4cf04e556921e0bb74e4a93b98 SHA-256: 6d3bb9becedf44ed41e65e6aed7d0a0417352104339faa8371d39b6563819e9f
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body and embedded URI point to a URL that appears to be a lure, possibly for phishing or malware distribution, using keywords related to legal matters such as 'juror subpoena'. No scripts were extracted, but the presence of an external URI suggests an attempt to redirect the user to a malicious site.

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://botokaw.ru/wix?keyword=juror+subpoena+failure+to+respond+dutchess+county
    • https://cdn-cms.f-static.net/uploads/4485939/normal_60413bf5029ec.pdf
    • http://lozutapezu.iblogger.org/present_perfect_continuous_questions_and_answers_exercises.pdf
    • http://nubolutlion.xyz/fybcom_banking_and_finance_notesqtz6f.pdf
    • http://megidexabaror.mywebcommunity.org/popapesezikufesani.pdf
    • https://cdn-cms.f-static.net/uploads/4465402/normal_603d474bf2a36.pdf
    • http://bevamifugidujew.scienceontheweb.net/advanced_excel_formula_with_example.pdf
    • https://cdn-cms.f-static.net/uploads/4409258/normal_6051f159863e1.pdf
    • http://skidki-day.shop/munogevabujividuwonopitec6h.pdf
    • http://ropufogesuzazeg.iblogger.org/archeage_swiftblade_guide.pdf
    • https://cdn-cms.f-static.net/uploads/4491686/normal_6041a478b23ba.pdf
    • http://fb-ig-copyright.com/dirili_erturul_jenerik_indir_mp36epg6.pdf
    • https://cdn-cms.f-static.net/uploads/4380540/normal_6022e213835a2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://geboxazuwem.rf.gd/flowers_pics_rose.pdf
    • https://s3.amazonaws.com/dezajok/what_is_federalism_ap_gov.pdf
    • https://s3.amazonaws.com/nefunupu/taswater_authorised_representative_form.pdf
    • https://s3.amazonaws.com/vabedafozo/crystal_reports_viewer_2016_jvm_terminated.pdf
    • https://s3.amazonaws.com/jafujasiwetid/zarchiver_pc_version.pdf
    • https://s3.amazonaws.com/gavobawum/calligraphy_sample.pdf
    • https://s3.amazonaws.com/popisiburewixuj/congruent_and_similar_polygons_worksheet.pdf
    • http://bugazepoja.onlinewebshop.net/betrayal_aleatha_romig_espaol.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_off0000ee98.bin
c82bb45856284e781d9630869d15533fb1e79d804927919ded67e2d8d29f0b18
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE98 5472 bytes
font_01_sfnt_off0001012f.bin
42f8289f627763c5f99fb03d4d665194233f5d3535cb9960a203b3f5610ce9d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x1012F 12232 bytes