Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab3e927068d6632…

MALICIOUS

PDF

76.4 KB Created: 2021-03-12 00:48:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 050b3cd669006a37f2ef4f940a0d9cf2 SHA-1: 7840938ea63c2c4c93109729b7b4190d7b97ded3 SHA-256: 0ab3e927068d6632237cb3d61727f2e37635c542373d1188467260ac58c931c2
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the presence of external URIs suggests the document is designed to redirect the user to a malicious site, likely for credential harvesting or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/123?utm_term=bursitis+hip+stretches+pdf
    • https://lasebotoxuxuxir.weebly.com/uploads/1/3/4/7/134729765/pukudumil-febepijajukubu-velowod-pobugakatadajin.pdf
    • https://cdn.sqhk.co/worekoxe/jegfjfo/xewefejaw.pdf
    • http://idealicaitaly.site/86342953926d6u49.pdf
    • http://realwockyc.info/where_to_drop_off_used_clothing_in_calgaryudrxq.pdf
    • http://lefenup.22web.org/39802357592.pdf
    • http://trafikcezaodebayisi.com/beto_lobbyist_moneyffbvi.pdf
    • http://salonhq.xyz/teroxipinc95r.pdf
    • http://vuwefedope.sportsontheweb.net/kelisajominurab.pdf
    • https://cdn.sqhk.co/vumivatuvi/Ajf9ZkM/levet.pdf
    • https://cdn.sqhk.co/tavaxikanabu/ghjbsGC/vokufajubezuliwavutepimu.pdf
    • http://mebets.xyz/torebosufag1yexg.pdf
    • https://cdn.sqhk.co/dexediwiboze/uHhhjgq/wivobukutozum.pdf
    • https://muxojuwarerufi.weebly.com/uploads/1/3/5/3/135388895/3970884.pdf
    • http://pusaburuku.22web.org/sas_survival_guide.pdf
    • https://cdn.sqhk.co/tiwefuxab/ijlhhhh/bearded_butchers_pig.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://7f06b679-e14d-4525-8955-d56a7cf6f710.filesusr.com/ugd/79e5df_2ee081e159d7405ea19ab614ef7e2b2f.pdf?index=true
    • http://rikuworubit.myartsonline.com/edexcel_gcse_history_anglo_saxon_and_norman_england.pdf
    • https://ede36962-9452-4451-b182-fa4236ba9bc6.filesusr.com/ugd/83b1b3_978f4e8a0d14412ab2b522780a6c6885.pdf?index=true
    • https://eee7329a-c4d5-4508-a8fd-a8ba515f7d9f.filesusr.com/ugd/5ed802_82c70334820c4402a7ff90a2f1de2abf.pdf?index=true
    • http://wedagavuvux.epizy.com/blog_examples_for_students.pdf
    • http://vasozoxinurekos.rf.gd/boy_scout_store_atlanta.pdf
    • http://rudozanel.epizy.com/zitaka.pdf
    • https://5fa60de5-32ab-41ac-ba65-77330e21e623.filesusr.com/ugd/2e16aa_d96265d9932b4a3dade1fb43f3a13ee7.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f048.bin
d2fd418f423bdc358cfe6a6d2233779b8632d901fc9a096994a216f4f592ef48		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF048 5048 bytes
font_01_sfnt_off00010176.bin
17887a48487c3e309eb4d54a08a57d6cca8e120c52e1d1a8cb394086016aa6bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10176 10180 bytes

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