Malicious PDF — malware analysis report

Static analysis result for SHA-256 579efd81eca2da52…

MALICIOUS

PDF

87.1 KB Created: 2021-02-22 03:49:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e116dffdc5d4a4a0a9f9213e6f628b41 SHA-1: 2af70964e499dc243028a1a587c8e1d4149cc013 SHA-256: 579efd81eca2da52f102d66e51f221517f5a5dbaed35df2164950e747415e0cb
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://seumenha.ru/strik?utm_term=linux+commands+tutorial+for+beginners+in+hindi PDF link annotation
    • http://1freedom.space/zajijabatuzaburidedvduq3.pdfIn PDF document text
    • http://dietnatur.fun/w3schools_python_if_loopwqvks.pdfIn PDF document text
    • https://cdn.sqhk.co/nixivezez/hcMiihx/24124679442.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/higidhf/download_game_boboiboy_galaxy_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/waximanodif/jbgfQig/pokeball_plus_pokemon_go_auto_spin.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/jcoUHEe/wuwawoxakexilatutejaku.pdfIn PDF document text
    • http://1eyvgo.xyz/87413453693eq1gv.pdfIn PDF document text
    • http://trafikcezaodebayisi.com/admanager_plus_6._6_cracktuxxa.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/ciaWaha/dupenosizufakigilonelin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kesufelitam.rf.gd/network_film_script.pdfIn PDF document text
    • http://zezajezo.epizy.com/github_create_template_repository.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/zovufubuwopegefefi.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/natuxamuxopazuvifobib.pdfIn PDF document text
    • https://s3.amazonaws.com/sejakopa/suica_app_android.pdfIn PDF document text
    • http://dozafuzap.epizy.com/57526332416.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/identify_hazards_in_the_workplace_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/expanding_brackets_and_simplifying_worksheet_tes.pdfIn PDF document text
    • http://belunovozexuse.rf.gd/87402225775.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102CD 5584 bytes
SHA-256: d39e7004d20312223e016745717ee8a1a49914903d12e2e2b9bac5313545c03f
font_01_sfnt_off000115a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115A3 10544 bytes
SHA-256: e0386760404df2d6f1fbfe98d46fe6a267c756d11c183a7e9cbc6029ff360814
font_02_sfnt_off00013971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13971 16104 bytes
SHA-256: 537e079f73b26092285abb7ff4a1b47bb6cc769f22c360318a2f24558621e701

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