Malicious PDF — malware analysis report

Static analysis result for SHA-256 dde7cd59cd2fdc2b…

MALICIOUS

PDF

75.0 KB Created: 2021-04-12 10:40:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 45b23e147db5e49b06513d525170cb21 SHA-1: 704d9e072f25ad1264c40dd3d490fab418af666e SHA-256: dde7cd59cd2fdc2b2ca98b9a1038d30c705e6defb0838d55abf02f8affb570c5
96 Risk Score

Malware Insights

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

The file is a PDF document that contains a suspicious URL pointing to a known malicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded URL is the primary indicator of compromise, suggesting the document's purpose is to redirect the user 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://kuzutuzo.ru/strik?utm_term=how+many+editions+of+a+random+walk+down+wall+street PDF link annotation
    • http://believes.space/95562319666flu67.pdfIn PDF document text
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • http://leftoutclub.com/avery_bumper_sticker_templatek4t01.pdfIn PDF document text
    • http://depalowivejal.iblogger.org/browsec_premium_apk_latest.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/0b3436bd-ce06-44c4-8197-aec771d4d218/pafironowibolibivusewi.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/android_kitkat_os_free_for_tablet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7981f641-534a-418a-868e-bbd52993553f/g_shock_g100bb_fake.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bfeca78-41b1-4a00-b69e-5c5df6a2989d/detobejepuweritelalifen.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/nutritional_information_roasted_brussel_sprouts.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/land_use_survey_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/85022431974.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/43341226156.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/2005_nissan_frontier_transmission_fluid_capacity.pdfIn PDF document text
    • http://dajatumuba.epizy.com/dabenodimadutexuzuta.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/55372881339.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/reading_plus_answers_reddit_level_i.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/9069027143.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af88249d-5ca8-4e4e-b591-12c500a38b11/85019418461.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c67e644-71b0-4ac2-8d20-909f64841ba4/finisebejalezebibojara.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/estimate_the_mean_and_range_from_a_grouped_frequency_table.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_off0000e851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE851 5272 bytes
SHA-256: 52959a0456e645880eee3efa533f0c6744166f20ef3de1024e9f6887f540905e
font_01_sfnt_off0000fa3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3B 10724 bytes
SHA-256: b0b119311efa514909aee546490c6cce278b24855e2abe35a7efbb42eb5b128e

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