Malicious PDF — malware analysis report

Static analysis result for SHA-256 cba6cf18416421ec…

MALICIOUS

PDF

104.3 KB Created: 2021-04-08 08:57:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 090423b2c388ab6209c43f9b790a395a SHA-1: 730d500b43d96500e2b9c467406403d062b928b9 SHA-256: cba6cf18416421ec693361ba7cf734bcd10c97696d0b2c39ef96963bb92a4713
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains an external URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to sentencing guidelines, further supporting the phishing attack pattern.

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://ponafet.ru/123?utm_term=sentencing+guidelines+magistrates+court+uk
    • https://cdn.sqhk.co/kobewudojuvo/hggjRwE/busazujotidelepetapigos.pdf
    • https://cdn.sqhk.co/vabolepibe/hHnjgie/microsoft_powerpoint_slideshows_and_presentations_app.pdf
    • https://cdn.sqhk.co/wemopizajazo/YghrEid/6557167134.pdf
    • https://cdn.sqhk.co/fudamozomeb/odBgdg2/atif_aslam_songs_old_list.pdf
    • https://cdn.sqhk.co/mepowokugo/fgdiiEU/woxuvuzito.pdf
    • http://walunajogikowes.22web.org/animal_cell_quiz.pdf
    • http://bodipok.getenjoyment.net/formula_algebra.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nejesezape.myartsonline.com/edit_file_for_free.pdf
    • http://gomitobovuni.rf.gd/time_connectives_worksheet_for_grade_4.pdf
    • http://xibubixina.epizy.com/read_bengali_books_online.pdf
    • https://uploads.strikinglycdn.com/files/7f816de8-a1a6-43fe-b9b4-8836e062755f/panasonic_tv_red_light_flashing_2_times.pdf
    • http://tirigofov.atwebpages.com/global_asset_management_industry.pdf
    • https://uploads.strikinglycdn.com/files/fd8adcf0-abe1-4a15-afdd-e6e74018c31f/fokaboxikituratedolip.pdf
    • http://jefokid.rf.gd/doxexigaranesasanamagafaz.pdf
    • http://rujemivegelap.epizy.com/fuwulal.pdf
    • http://nalevozuwe.rf.gd/adventuring_through_the_bible.pdf
    • https://uploads.strikinglycdn.com/files/605eb53e-9a61-41d1-9a66-adf352e431dc/what_is_a_financial_commitment_statement.pdf
    • 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_off00015a70.bin
b5b2f6494e23a90120539e91fd20ce1ed398d34d765b670a7c206cd15067d743		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15A70 5424 bytes
font_01_sfnt_off00016cc9.bin
00592eea935312c8f493360c52208eb9c65a3e737d0f0600d702d44ddf929fcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16CC9 11096 bytes

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