Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a6861ea67abb8f0…

MALICIOUS

PDF

76.0 KB Created: 2021-02-01 02:33:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: e778eca479f88ddffb3a07bf90954303 SHA-1: b4518296b808e60ed4a3aeaa2931a0d8ea202db5 SHA-256: 8a6861ea67abb8f0e0daa197204dc4ed0049563326fc5e9d68973d28c9578975
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'baarspo.ru', which is likely used to host a malicious payload or redirect to a phishing site. The document body, though heavily obfuscated, contains text related to 'wkhtmltopdf' and a date, suggesting it might be a lure document generated by a tool.

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://baarspo.ru/123?utm_term=dead+zed+hacked+all+guns+unlocked+unblocked PDF link annotation
    • http://dirujadejefogax.iblogger.org/hungarian_dance_no_1_piano_sheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460954/normal_5fcf0958d934b.pdfIn PDF document text
    • http://lorenbayi.com/active_directory_federation_services_error_10647hvae.pdfIn PDF document text
    • http://criticcxck.space/15843094205vsjh4.pdfIn PDF document text
    • http://santand-es.com/injustice_gods_among_us_year_2_comicjidw8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454180/normal_6004a101d89ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386842/normal_6016b43099712.pdfIn PDF document text
    • http://blue-tick-central.com/risujatumakufidutosebxqryq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477649/normal_5fec05b4d64d7.pdfIn PDF document text
    • http://salestore.pro/xipefulagl03y.pdfIn PDF document text
    • http://lestyprin.online/16308401406kvapi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448332/normal_600908aa9e202.pdfIn PDF document text
    • http://help-violation.com/mk11_klassic_skins_female_2020rxtri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389830/normal_5fd7aa77d6fa0.pdfIn PDF document text
    • http://copyright-helps-team.com/57220903013scvwt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445879/normal_5fcbe3694ca60.pdfIn PDF document text
    • http://dkmz1.club/ariel_miramontes_desnudomtc8j.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/genukopapovixo/live_cricket_streaming_software_for_android.pdfIn PDF document text
    • http://fawogalupa.epizy.com/71279744310.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/report_des_preuves_du_brevet_des_collges.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_off0000e81e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE81E 5360 bytes
SHA-256: a683de073e6a68a6d6c176ad5bb867bfbfb784c1f439c65242cd33efde2f291d
font_01_sfnt_off0000fa65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA65 12392 bytes
SHA-256: 5b2c4d8c556167dfd025ddce63468a74785368b3a323568c0da0daeb94717baf

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