Malicious PDF — malware analysis report

Static analysis result for SHA-256 421dc4e5c15bfc2a…

MALICIOUS

PDF

84.3 KB Created: 2021-03-17 08:52:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7bf94641aa6ded57fd47a31e5ae87833 SHA-1: 4d07cf49c8488a0de3abcb138f4d55ab95cc4f41 SHA-256: 421dc4e5c15bfc2aa594ff6db7ed54cc147f605ae81944d6e49e92ccedf3ec55
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search query, likely intended to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://botokaw.ru/wix?keyword=gnc+smoothie+bar+menu+greenville+sc
    • https://cdn.sqhk.co/bobavijiwoba/avNgogj/33791418430.pdf
    • https://cdn-cms.f-static.net/uploads/4406785/normal_5fd79ba494e83.pdf
    • http://relibafogat.sportsontheweb.net/vande_mataram_malayalam_lyrics.pdf
    • https://cdn.sqhk.co/sixepatexup/EHigijf/how_to_check_my_btc_wallet_address.pdf
    • http://wolifote.getenjoyment.net/microsoft_excel_cheat_sheet.pdf
    • https://cdn.sqhk.co/wodaximewule/cji6yja/business_world_login_renfrewshire_council.pdf
    • http://nobukuxokosiga.mypressonline.com/77051378113.pdf
    • https://cdn-cms.f-static.net/uploads/4446915/normal_5fd7a9ea10995.pdf
    • http://dutarotanazosuv.medianewsonline.com/5286816366.pdf
    • https://cdn.sqhk.co/lolajelor/A33thep/sarafer.pdf
    • https://cdn.sqhk.co/xonipavu/Thjhbgj/strategic_planning_examples_in_healthcare.pdf
    • https://cdn.sqhk.co/dufukeraj/ja4Dpgc/contract_killer_sniper_apk_offline.pdf
    • http://nibewubixela.getenjoyment.net/zorojaxevomewon.pdf
    • https://cdn.sqhk.co/kifukuvitog/hjdDoWC/birthday_cake_theme_for_mom.pdf
    • https://cdn-cms.f-static.net/uploads/4488346/normal_6023d1e34c27c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gomakobez/54448074461.pdf
    • https://s3.amazonaws.com/widofafane/98649355092.pdf
    • https://s3.amazonaws.com/bejenosugede/62457138556.pdf
    • https://s3.amazonaws.com/gifojuxaxeva/sathuranga_vettai_2_movie_tamilrockers.pdf
    • https://s3.amazonaws.com/fixararololu/360_degree_leadership_book.pdf
    • https://s3.amazonaws.com/baxegezivumi/castle_of_glass_video_mp4.pdf
    • https://s3.amazonaws.com/perurulexi/leesville_lake_ohio_fishing_report_2019.pdf
    • https://s3.amazonaws.com/suzixegazunow/function_notation_worksheet_answers.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_off00010904.bin
317f5ae9088a8f743dbbae3346050987c712f804000526448e979b591145c6a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x10904 5444 bytes
font_01_sfnt_off00011b69.bin
d4d0f8284933fc937be31a79dabc24d12dfdb079f01cdf82e920c0d5702c8d69
pdf-font-stream PDF embedded font (sfnt) at offset 0x11B69 12020 bytes