Malicious PDF — malware analysis report

Static analysis result for SHA-256 33c8912a687c65be…

MALICIOUS

PDF

73.1 KB Created: 2021-03-03 14:01:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 9b95ff2b53aaf63645cda2aff1393e03 SHA-1: 1d0e1be8ce71625c09b6ef910e8d438d720839d0 SHA-256: 33c8912a687c65bee79342f8850a038849c2a62fae14554c9c1a91d74cf688bc
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by redirecting them to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://gimoguvi.ru/award?keyword=mythic+adventures+unlock+fnac PDF link annotation
    • http://mufutekuson.getenjoyment.net/why_is_my_kenmore_ice_maker_freezing_up.pdfIn PDF document text
    • http://ukranews.site/how_much_to_install_a_bradford_white_water_heaterj8vyd.pdfIn PDF document text
    • http://iminn.ru/rudegapadedenefusibisuxu4c1zh.pdfIn PDF document text
    • http://nowukusox.mypressonline.com/beats_by_dre_wireless_solo_pro.pdfIn PDF document text
    • http://ag-management.space/90540809612lcm6e.pdfIn PDF document text
    • http://usecabinets.xyz/624485598466ci90.pdfIn PDF document text
    • http://makamar.xyz/18146187626df0gj.pdfIn PDF document text
    • http://bettermoneytips.com/bhavesh_joshi_full_hd_movie_filmywapl8k99.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/borokegujuzero/diabetes_uk_polish_diet_sheet.pdfIn PDF document text
    • http://fiwabafedazuv.epizy.com/research_into_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/winizapij.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/61015642268.pdfIn PDF document text
    • http://wazeniwemir.onlinewebshop.net/ff7_remake_length_vs_original.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/berliner_platz_4.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_off0000e042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE042 5340 bytes
SHA-256: a294f4f8c97a76dafa4eaaaf24ed5d2f1a7a605fcbeafb60c87a3a2b2eb48bc1
font_01_sfnt_off0000f283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF283 10888 bytes
SHA-256: a346f06bcb22f2255a4a15979083bf64c9f2024141186cae44ba3d489a1b633b

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