Malicious PDF — malware analysis report

Static analysis result for SHA-256 38e4b1f47fa87275…

MALICIOUS

PDF

76.5 KB Created: 2021-02-24 12:46:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 58c6b05c55f6004279f3b0e3800eae7c SHA-1: 7b83981cbbf79b06b0cf079f69284a833da6d12b SHA-256: 38e4b1f47fa87275896737a05545be4e700c498b7834a8e65795cf177ebce973
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain. ClamAV and ML classifiers flagged this PDF as malicious, likely due to its phishing or trojan capabilities. The embedded URL is the primary indicator of compromise, suggesting a phishing attempt to redirect the user to a malicious site.

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/strik?utm_term=dungeon+master+tools+online PDF link annotation
    • http://big-ita.space/download_samurai_ii_vengeance_modxvduu.pdfIn PDF document text
    • https://cdn.sqhk.co/jixuvepabu/gemUShb/kujub.pdfIn PDF document text
    • http://huaweistoreukr.xyz/domain_and_range_worksheet_1_answer_key_algebra_189izs.pdfIn PDF document text
    • http://itravelgr.com/78371993326fzcxx.pdfIn PDF document text
    • https://cdn.sqhk.co/sarunasol/sjbWrjd/paluvafigixamigizupapatok.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/dosipive/43034936788.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/chrome_free_for_mac_10._5._8.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/asme_b36_10m_free.pdfIn PDF document text
    • http://bimibukiju.rf.gd/2009_porsche_cayenne_owners_manual.pdfIn PDF document text
    • http://nejajubuwuwo.rf.gd/amaravathi_film_hd_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/24586048917.pdfIn PDF document text
    • http://mupigedosawi.epizy.com/letter_of_good_standing_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/46542994326.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/kenevanosokexewetibuk.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/97833087333.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/ponegala.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_off0000effe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFE 5004 bytes
SHA-256: 7658eafb8742ec08c5687838b9179d74453675fb32e4ee9a3771067965477878
font_01_sfnt_off000100ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100EF 10472 bytes
SHA-256: 5dfc2c11062e52c679e50b1d8eff0cdf5314a72e1640e923613b163b995479f6

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