Malicious PDF — malware analysis report

Static analysis result for SHA-256 3468e23201733c13…

MALICIOUS

PDF

69.2 KB Created: 2021-02-26 17:42:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e169351e02249913b7ce2d5cacf8fb13 SHA-1: bc19f05c1e5061cad9c64f828a3535626ea1d70b SHA-256: 3468e23201733c13c91067837466c53b731388321cab9705761f2b0ad11450b5
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://dafemum.ru/award?keyword=samsung+tablet+ce0168+battery+removal In PDF document text
    • https://dukuvelawabuze.weebly.com/uploads/1/3/0/9/130969723/18ab8e6a376332.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413975/normal_5fca60837f0de.pdfIn PDF document text
    • https://dugaxopi.weebly.com/uploads/1/3/5/3/135305828/9f46e9446.pdfIn PDF document text
    • https://veledagovivavav.weebly.com/uploads/1/3/2/6/132681602/8940585.pdfIn PDF document text
    • http://manipiso.iblogger.org/how_to_trade_bitcoin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465142/normal_6018adb76407a.pdfIn PDF document text
    • https://cdn.sqhk.co/timafewa/aCifhgU/marathi_cartoon_video_songs_download_hd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487935/normal_602c41056da7f.pdfIn PDF document text
    • https://kozugirufeji.weebly.com/uploads/1/3/4/8/134884007/1131921.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gifimedirawi.epizy.com/new_odia_song_dj_2018.pdfIn PDF document text
    • http://raduniti.epizy.com/causes_and_effects_of_globalisation.pdfIn PDF document text
    • http://novosumagib.epizy.com/vocational_english_for_nursing.pdfIn PDF document text
    • http://modunatotuw.epizy.com/best_chess_app_for_android.pdfIn PDF document text
    • http://gisipusizen.rf.gd/backpacking_vietnam_guide.pdfIn PDF document text
    • http://boxulinizisa.epizy.com/86406860689.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_off0000d01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD01E 6068 bytes
SHA-256: 28e63282207a5089347df8017a9e67efc0f8bca5732be9b9a580c5b1d67e3e07
font_01_sfnt_off0000e4b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B5 10084 bytes
SHA-256: 5fed68ca5a9a91a45aa0abaae6a0ab9d688fc73396e6872544e60f2c75d4c136