Malicious PDF — malware analysis report

Static analysis result for SHA-256 da91ee6a16ddff15…

MALICIOUS

PDF

98.9 KB Created: 2021-05-02 19:59:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cc62344750dddbf077d7821299fb69ab SHA-1: ee41cec46d4bbc955fe4063f4e9349ef0b295bd7 SHA-256: da91ee6a16ddff15af240d28887a8bee630c7fd9fd1d52db36dc8949add5e4e6
96 Risk Score

Malware Insights

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

The PDF document contains a lure related to a PlayStation Network error, directing the user to a suspicious URL. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit user interaction with the provided link.

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://pelibifir.ru/strik?utm_term=playstation+network+sign+in+error+ce-33992-6
    • https://cdn.sqhk.co/pixafosabow/bhjhhlh/dwayne_johnson_net_worth_2020.pdf
    • https://cdn.sqhk.co/pirujezexod/OhdVugg/public_school_teacher_cover_letter.pdf
    • http://hytri.com/91305484989gcc0m.pdf
    • http://theandyhong.com/who_is_the_greek_god_of_catsl8le2.pdf
    • https://kinamolifurepe.weebly.com/uploads/1/3/2/7/132710726/7214679.pdf
    • https://wusitezuredov.weebly.com/uploads/1/3/5/3/135314125/wumivisomulerezan.pdf
    • https://cdn.sqhk.co/fovipobex/geT67ig/red_ball_4_volume_5_gra_online.pdf
    • http://kersita.space/wozotedasowuwipotunovivo3cf8q.pdf
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdf
    • http://luxshop21.site/the_consolation_of_philosophy_slavitt856vo.pdf
    • http://flowerport.market/josomijeqs0ta.pdf
    • http://setofexperience.site/pasevoxrkhs1.pdf
    • https://cdn.sqhk.co/senaveduwiz/hhjgif2/bonugozulumibes.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sapoziwuzodol.rf.gd/absite_surgery_free.pdf
    • https://s3.amazonaws.com/zepifudoxapo/simabejixuzi.pdf
    • http://kutavezof.epizy.com/34328406040.pdf
    • https://s3.amazonaws.com/mefonevimimix/fivoronu.pdf
    • http://birulapadeto.rf.gd/harvard_research_paper_format.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_off00013ed2.bin
705eeb79d89c12d197df2503c1b07deb1de3160c90629aef1ea3cfa1f219add4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13ED2 5864 bytes
font_01_sfnt_off000152f3.bin
b650b13497acb505e73d1b3fb8ce4f3f3980c231dee9af9d1f34d0e5fbf6a6ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x152F3 12932 bytes

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