Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bccbc577d46036f…

MALICIOUS

PDF

76.8 KB Created: 2021-04-20 00:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae55834523f94589cbcab793cb8ec5d2 SHA-1: 7955426b9c4904a8468112c840899e3e2fa24d42 SHA-256: 0bccbc577d46036fc398830aca51e5914560b325a59ce5c1e1556c2b7dbe9a11
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a malicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by directing them to a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/strik?utm_term=best+books+on+how+to+control+your+mind
    • http://teleporttur.ru/buwidekre1h6.pdf
    • http://gazzsheff.xyz/77371663058zogms.pdf
    • http://mowogaw.mypressonline.com/emotional_intelligence_book_review.pdf
    • http://cleaner360.shop/check_your_aviation_english_freevdusu.pdf
    • http://xelibirujegid.mywebcommunity.org/the_abundance_book_john_randolph_price_free.pdf
    • https://cdn.sqhk.co/xejudawadoni/4Z0GZir/filamonudizevodobom.pdf
    • https://cdn.sqhk.co/tovipovo/ibjgoji/bouncy_castle_1._6_maven.pdf
    • https://cdn.sqhk.co/ninoporaleva/jiHheR2/nofekubovadusa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/35300f95-8e09-4010-beb1-7b32251875d2/ge_universal_remote_code_list_for_insignia_tv.pdf
    • http://mikijanux.atwebpages.com/bailey_and_love_surgery_notes.pdf
    • https://uploads.strikinglycdn.com/files/32719ddc-8da1-4374-b4d0-70f218fd01c6/94330820584.pdf
    • http://bemabam.myartsonline.com/amor_de_mi_alma_sheet_music.pdf
    • https://uploads.strikinglycdn.com/files/6eb97304-8b08-4aac-893c-8e27915fa449/law_books_online.pdf
    • https://s3.amazonaws.com/rebomedug/stihl_ms180_spark_plug_type.pdf
    • http://kojenixerog.myartsonline.com/lamomi.pdf
    • http://merapenerabari.myartsonline.com/caballo_de_troya_tomo_1.pdf
    • https://uploads.strikinglycdn.com/files/4b052209-9583-426d-a8ba-320ed1e202dc/45816606033.pdf
    • https://uploads.strikinglycdn.com/files/40461a69-ae5f-4102-85c3-3d9cc8de8234/43727772195.pdf
    • http://naranosufok.atwebpages.com/valobuwor.pdf
    • https://s3.amazonaws.com/xamapebonijos/asking_questions_worksheets_1st_grade.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_off0000efe4.bin
e5086b8631bdbd561eb5c56a4514c763bf8131930dae7570f21ebd49bb31c3ec
pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE4 5416 bytes
font_01_sfnt_off00010241.bin
84f48460321b9c996b4e376a757c37fe0048ab42120219d96701e706595f5d4b
pdf-font-stream PDF embedded font (sfnt) at offset 0x10241 10432 bytes