Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fe0593b5cbb4d4f…

MALICIOUS

PDF

83.9 KB Created: 2021-02-18 12:48:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 570d89c2f804d159aeaf044ffdfef8af SHA-1: bc7b0695e1f1a122ca9a98e5f1250dc16d5ecaf8 SHA-256: 2fe0593b5cbb4d4f9075540f731e12996772d2a461f628527398978261d962b1
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely the primary lure. While no scripts were explicitly extracted, the PDF structure and the presence of a malicious URI suggest an attempt to redirect the user to a malicious website for phishing or further payload delivery.

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
  • 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/wb?keyword=arris%20dcx3520e-m%20remote%20control PDF link annotation
    • https://cdn.sqhk.co/remimidotomi/Djcjhia/kejadovafolojafokugiwife.pdfIn PDF document text
    • http://tupakewufitid.iblogger.org/professional_cv_template_uk_2018.pdfIn PDF document text
    • http://smilex.club/pefubolisomazororifduec.pdfIn PDF document text
    • http://tinizorejit.22web.org/kakakunejamibije.pdfIn PDF document text
    • http://arendagg.xyz/database_management_system_mcq_questions_with_answerspm8qj.pdfIn PDF document text
    • https://cdn.sqhk.co/wanaxowuwot/bjjVjjd/pokemon_go_shiny_rarity_list_august_2019.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/boxujetanonikuv/15367664539.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/bed_sheet_size_guide_uk.pdfIn PDF document text
    • http://faxunarin.epizy.com/96442117446.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/32041891274.pdfIn PDF document text
    • http://litaxuroba.rf.gd/akkad_bakkad_bambe_bo_full_song.pdfIn PDF document text
    • http://vekamujibatebig.rf.gd/bts_love_yourself_answer_ver_s.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/knack_2_platinum_trophy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/93243062474.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/kejavanesimosapevefata.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_off000108c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108C4 5528 bytes
SHA-256: 71974eac3cc0c1aaea7361fb9b282616ba8c726cceaa381865e015c3eeb4b698
font_01_sfnt_off00011b8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B8F 11456 bytes
SHA-256: 9388af6991b8f770b5b9fabe992a1087de02741da02075930033843c5a9708d4

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