Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dfc796e592793cc…

MALICIOUS

PDF

74.0 KB Created: 2021-02-21 17:43:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 10242da9e2bdcc8a1a326a921008220c SHA-1: edfd3301fd718991b988301b461618705ab14bd5 SHA-256: 3dfc796e592793cc301d983e6a1ff1f774604db2d847f6a870720cafed111f0b
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URI pointing to a suspicious domain, which is a strong indicator of phishing or malware distribution. The ML classifier and ClamAV detection further confirm its malicious nature. The document body, though heavily obfuscated, suggests a lure related to Kali Linux commands, aiming to trick users into visiting the malicious URL.

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://druttle.ru/strik?utm_term=kali+linux+command+to+list+all+users PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450419/normal_6029291a92ed9.pdfIn PDF document text
    • http://esclick.pro/13220607417997pv.pdfIn PDF document text
    • https://cdn.sqhk.co/tozakexidupe/ujigeha/94797835862.pdfIn PDF document text
    • http://tamakar.xyz/29963050299zlrrr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385876/normal_5ffa0b041fca3.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/vufoduvase9etwp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403120/normal_5fd0fe905b4aa.pdfIn PDF document text
    • http://lidzadva.xyz/jadoo_tv_5_setup_guide77eix.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/nopomewegobij/baldi_s_unreal_basics_android_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/zotavexuvu.pdfIn PDF document text
    • http://siwodonodefofo.epizy.com/graticule_asset_management_asia_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/royal_challengers_logo.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/42620584997.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/formacion_de_radicales_libres_en_el_cuerpo.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/63405062289.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/fajufokisuruduroti.pdfIn PDF document text
    • https://s3.amazonaws.com/xowasosuf/53263042989.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_off0000e2b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B5 5124 bytes
SHA-256: 24026842fa428c7087e26625f6b8f0459ca08e56522cc11040181702630f1f5b
font_01_sfnt_off0000f40d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF40D 11336 bytes
SHA-256: e072532ca8613d6db8233a8ecc9c9e3ce8b8c68d53c3b3abd969a0a839210858

Open this report in the interactive analyzer, or submit your own file for analysis.