Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9c6716d7355480c…

MALICIOUS

PDF

100.9 KB Created: 2021-02-25 00:22:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 49b38ebf0ca4dc2ac9d80bbf17b23eb6 SHA-1: 19a852b8fd201173551cd33a06c54853e25c53b0 SHA-256: d9c6716d7355480c2aa4697dc40471db9cc294cf771ba99a59b7b662dd43746a
154 Risk Score

Malware Insights

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

The PDF contains embedded links that point to known malicious redirectors, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, appears to be a lure related to a Broadway recording, suggesting a phishing or malware distribution attempt.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/award?keyword=little+shop+of+horrors+broadway+recording In PDF document text
    • http://lezigovedavide.getenjoyment.net/black_diamond_revolt_headlamp_user_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/gigifojorax/U3EJig6/crash_dive_2_game.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/the_logical_song_supertramp_tab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425909/normal_602a6fd6f2e01.pdfIn PDF document text
    • https://vujewixijul.weebly.com/uploads/1/3/1/4/131437312/vojunute_fuzisokaxesu_parugev_ritonetoro.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393181/normal_5fdde374627e2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472764/normal_5fee8b8e4fb4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459630/normal_600825c9da5ee.pdfIn PDF document text
    • https://kebetesoma.weebly.com/uploads/1/3/2/6/132695457/ranokeposupev_zuneri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478655/normal_60226d6333fc8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453730/normal_5fe2fca4aef13.pdfIn PDF document text
    • https://megojame.weebly.com/uploads/1/3/5/9/135992505/pawirutixo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gopifu/magidonozaluleli.pdfIn PDF document text
    • http://sazasewugekupej.onlinewebshop.net/54029625364.pdfIn PDF document text
    • http://jabodegodonirad.atwebpages.com/xokelowajebuw.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/4792487866.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/answer_the_question_jerk_gif.pdfIn PDF document text
    • https://s3.amazonaws.com/xirixepo/80214466720.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014aff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AFF 5692 bytes
SHA-256: fa3e427855c165ae26fd98ad271ed97f201fb99d30b8c3bae69405c257e88479
font_01_sfnt_off00015e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E70 12316 bytes
SHA-256: d396f2ec213711574abb8242508d8f8d9964fcac7d37afe10bead67fa0a0ccb0

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