Malicious PDF — malware analysis report

Static analysis result for SHA-256 84d09defd09a3f0e…

MALICIOUS

PDF

76.8 KB Created: 2021-03-17 03:08:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 404150ee2dc0fade204de23a5379bd12 SHA-1: 779e75e37c498b34cec87e2ae783d0f8f0c94ec5 SHA-256: 84d09defd09a3f0e974364a964bb34b9853e34864c6de42c37908f663ac81189
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a book title, aiming to trick users into visiting the malicious URL.

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://druttle.ru/strik?utm_term=sandman+preludes+and+nocturnes+hardcover PDF link annotation
    • http://easy-money-cash.space/stealth_cam_stc_gxvrw_gx_cellular_trail_camera_22_mp_verizonvc5rm.pdfIn PDF document text
    • http://helplnstagramoffice.com/rebabapatewopizou0ywc.pdfIn PDF document text
    • http://cardio-active.site/que_es_direccion_en_el_proceso_adminyxmqz.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/how_to_clear_memory_on_omron_hem-711.pdfIn PDF document text
    • http://nuvifufaronez.22web.org/romubiki.pdfIn PDF document text
    • http://zaxiluxedexu.getenjoyment.net/40_hadith_on_seeking_knowledge_in_urdu.pdfIn PDF document text
    • http://xugaguf.mypressonline.com/mopanegepukaserasulad.pdfIn PDF document text
    • http://waferaboteb.mypressonline.com/3291469882.pdfIn PDF document text
    • http://shishkin-seed.xyz/puluvunikaxetamuwajibent0r.pdfIn PDF document text
    • http://zugemenelil.medianewsonline.com/maze_runner_the_death_cure_movie_download_in_hindi_720p.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/2069d5eb-d3f6-44c3-9b26-9b242a68e1bc/19896952230.pdfIn PDF document text
    • http://kitalanexu.epizy.com/buku_ceros_dan_batozar.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/jorumigugupakusa.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/10719323102.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/47221026062.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/91202086835.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/givesatuberorewebos.pdfIn PDF document text
    • http://labeberop.epizy.com/bls_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/48030726206.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/geographical_distribution_of_animals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd9f8ab3-e2ee-43ab-8290-3124c381501c/27348785507.pdfIn PDF document text
    • http://muzafevabuma.rf.gd/halloween_counting_worksheets_for_preschoolers.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_off0000edf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF9 5476 bytes
SHA-256: 31c90b8cb13683c567444c3eb5022458693ed174d82e362112b04704aca6c319
font_01_sfnt_off0001006e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1006E 10404 bytes
SHA-256: 51f7e59ae9a54bcbb3c99f23772fb194e9cc32129a99abff021b42e355c8c8f9

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