Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a86d48d0098a0d5…

MALICIOUS

PDF

72.7 KB Created: 2021-03-03 06:28:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fba3b9fd749371d47c03118f6dda7ee4 SHA-1: e081601f1dd5ab6c08a276b489b39725aae99956 SHA-256: 6a86d48d0098a0d5cebc69dd7ace69822221ec0a6c9fd10fc72634d135e8f1b8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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://jottigo.ru/award?keyword=how+to+understand+someone+else%2527s+point+of+view PDF link annotation
    • http://jorowijedo.mywebcommunity.org/92571868461.pdfIn PDF document text
    • https://cdn.sqhk.co/rirakibugo/AgjRhh7/tic_tac_toe_emoji_game.pdfIn PDF document text
    • http://zizodoroluxonaf.sportsontheweb.net/96968287994.pdfIn PDF document text
    • https://vagobodowi.weebly.com/uploads/1/3/4/6/134600101/f2d106d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478123/normal_6007e1badedd3.pdfIn PDF document text
    • https://tawajuwu.weebly.com/uploads/1/3/4/8/134850210/3951739.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393362/normal_60249b320d68c.pdfIn PDF document text
    • http://dikegebe.mygamesonline.org/which_book_in_the_new_testament_was_written_first.pdfIn PDF document text
    • https://fufivivol.weebly.com/uploads/1/3/0/8/130873849/3f6267b6950.pdfIn PDF document text
    • http://nukowivoxom.iblogger.org/catering_assistant_resume_template.pdfIn PDF document text
    • http://kekemubitaf.iblogger.org/duxidimateze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zedotedifajo.epizy.com/vamepamuvodasexepibuzosu.pdfIn PDF document text
    • http://pilulozames.epizy.com/g._b._f_parents_guide.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_off0000e0af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AF 5332 bytes
SHA-256: 8a82eeb2f2d7c0c5a33a6b50cf08e498a16a11efdb33187c3e3509bb5a057c8f
font_01_sfnt_off0000f2db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DB 10240 bytes
SHA-256: 3024438a1e426a4832c0bcda2f43fa3cbbeefa369382e20575cc7be759c95f89