Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8039d277aaa2f39…

MALICIOUS

PDF

79.2 KB Created: 2021-03-20 02:55:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2f8583039f36d397a5f578824577ce0 SHA-1: 7bd7b68df5c76ba5ed3c68721bc52d12b004ed0d SHA-256: e8039d277aaa2f3998a3120473ee3df7fa7abe1bd8b8390fa045289ee52ecb3d
104 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL associated with game mods, suggesting a lure to download potentially unwanted or malicious software. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI are indicative of a phishing or social engineering attack, likely delivered as an attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jumiwimov.ru/wix?keyword=bleach+brave+souls+apk+mod+unlimited+orbs
    • https://static.s123-cdn-static.com/uploads/4426261/normal_5ff29e8f5a733.pdf
    • https://static.s123-cdn-static.com/uploads/4390057/normal_5fdcb74d44a53.pdf
    • https://cdn-cms.f-static.net/uploads/4428341/normal_604421d0c2c64.pdf
    • https://cdn-cms.f-static.net/uploads/4488135/normal_60311f2d30382.pdf
    • http://mimawusavap.iblogger.org/bozusegijasamejuguxo.pdf
    • https://cdn-cms.f-static.net/uploads/4445726/normal_602b7f48a8290.pdf
    • http://kozijadeji.22web.org/77585133844.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/37d882bf-1535-4c50-9da4-67637e6e1d9b/what_is_the_4th_industrial_revolution_all_about.pdf
    • https://s3.amazonaws.com/borokegujuzero/17514503162.pdf
    • http://vabizofolimise.epizy.com/huduma_number_form.pdf
    • http://nuxizutize.rf.gd/cursive_writing_worksheets_free.pdf
    • http://dujexewemabak.rf.gd/agatha_christie_poirot.pdf
    • http://bosovuwid.epizy.com/lesadebifezirojifujiwet.pdf
    • https://89f68ddc-9f98-4e60-8afa-3e0ca6603e9e.filesusr.com/ugd/4725f1_e89126c42cb349d1b7878c63f5111eb0.pdf?index=true
    • https://d451e762-8e00-4155-9971-9512d28d2528.filesusr.com/ugd/b52961_0d41ed280e8d46ea8161b122acfdec73.pdf?index=true
    • https://s3.amazonaws.com/wavunot/pewelumozevizumomole.pdf
    • https://uploads.strikinglycdn.com/files/191ffcb8-77ec-47cc-9827-0b55ed93a449/free_video_games_to_play_online_without_downloading.pdf
    • https://s3.amazonaws.com/lizuseguwix/zanopu.pdf
    • http://vemibus.epizy.com/elementary_english_teacher_interview_questions.pdf
    • http://savopabefiw.epizy.com/noxitedovijojusowawibuj.pdf
    • https://19e6fc83-c281-4d06-93fd-e8b16a02b90a.filesusr.com/ugd/ce5d00_138aa37c6a2a4fe5a56c452978d825aa.pdf?index=true
    • http://bujazux.rf.gd/febafaluzufigumeluwugu.pdf
    • https://b6e49935-6d58-4bde-831f-6e0b746776d3.filesusr.com/ugd/7d321f_c9c9173d1f344009b4af467f6f7e9930.pdf?index=true
    • https://f8bd9030-4518-40b4-9047-d478e6ffc17b.filesusr.com/ugd/608fe2_440f5ccd16dc49a19ef8513b41927d36.pdf?index=true
    • https://s3.amazonaws.com/zugutixe/descendants_2_movie_720p.pdf
    • http://tunakaxawonisov.epizy.com/82651773530.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_off0000f5b9.bin
58bd1dd0daf41f55c020099b0a2dacee49fe93a09b34dd6077b7519443916b36		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B9 5628 bytes
font_01_sfnt_off000108b1.bin
6c5b669a95fa5337707daa00224595f84f267cf55ef9800c7662bc92fae592bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x108B1 11236 bytes

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