Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0cebd8f8e89b94b…

MALICIOUS

PDF

88.2 KB Created: 2021-03-22 14:12:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: c993d72ac1f4eefd9506484146e4e511 SHA-1: 53ddf68d759c59e8550fa30535dc3ea2aa3d59be SHA-256: d0cebd8f8e89b94b6aae2687aa29fa981564d6193a340716aa72a4c2184ec9b6
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a malicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL is likely intended to redirect the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://bologen.ru/wix?keyword=home+sheep+home+lost+underground+unblocked PDF link annotation
    • http://zugasanuko.getenjoyment.net/zumatadere.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387412/normal_5fd0de1549c97.pdfIn PDF document text
    • http://fexevewuli.mypressonline.com/17850453765.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427506/normal_60149cb875822.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465392/normal_5fde6ee943f8f.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/how_to_clear_table_data_in_excel_vba.pdfIn PDF document text
    • https://cdn.sqhk.co/fudikeraz/5NLcgfx/mujenazokepi.pdfIn PDF document text
    • http://serururepus.scienceontheweb.net/40397405218.pdfIn PDF document text
    • https://cdn.sqhk.co/fugutexifi/hfFxAid/52047205738.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489593/normal_604cdaf79cfca.pdfIn PDF document text
    • https://cdn.sqhk.co/javufikari/Z4KljcF/piano_tiles_anime_music_apk.pdfIn PDF document text
    • http://vuwiwetidajin.mywebcommunity.org/88859835831.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/bitajemisajoz/51147052.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb2ef49c-6034-4dc6-bed2-580186cc90df/16816146530.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/tapin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/227b11c5-aad8-4f60-9739-35c22b30a52f/is_there_an_it_chapter_2_book.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/zoped.pdfIn PDF document text
    • http://xirozaza.onlinewebshop.net/american_english_phonetic_alphabet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0feddd6-fd55-462e-a783-0090dda2bc9d/tujigavowezajefoxegewaniz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/686e788e-5549-4839-a294-cae3b2161225/i_iv_v_chord_progression_song_list.pdfIn PDF document text
    • http://vakogez.myartsonline.com/sedazipikekevi.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/adventist_hymnal_app_android.pdfIn PDF document text
    • http://refusunono.onlinewebshop.net/bomojofolixiwozeset.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_off000118dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118DC 5440 bytes
SHA-256: bf3688716bd53db71335b846d32114d94cc663cb6754e23c72451ccd51fa0957
font_01_sfnt_off00012b2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B2F 12400 bytes
SHA-256: c0185937210e88345377dfda895c934c7f99fd15641f47930b76c9d68f5ea81d

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