Malicious PDF — malware analysis report

Static analysis result for SHA-256 734f70699406ef95…

MALICIOUS

PDF

64.3 KB Created: 2021-02-14 09:41:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 69ef3e74ea54071403d20b7492c9ed4f SHA-1: 364cbee34d0bf7f9fb3fc52a9ac30f1dac5d19fc SHA-256: 734f70699406ef9500fdd273b38d683efd2b50eeaa1227a0743db2c46ebe9e1c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wb?keyword=darjeeling%20limited%20subtitles PDF link annotation
    • http://gallery-shop.site/nepanoxuruepuz4.pdfIn PDF document text
    • https://fejilezujew.weebly.com/uploads/1/3/4/3/134340931/8136ae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448984/normal_5ff6692960f58.pdfIn PDF document text
    • https://revugegan.weebly.com/uploads/1/3/4/6/134682990/timoxapikajunituru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455660/normal_5fd63255cf977.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418786/normal_60208b12998e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422637/normal_5fdecca7ad6a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494432/normal_5ff6c56b84ccd.pdfIn PDF document text
    • https://vexefanakaxaki.weebly.com/uploads/1/3/4/8/134871487/maduvudoku.pdfIn PDF document text
    • https://vibusipapomokij.weebly.com/uploads/1/3/2/6/132682711/vuper_desezoke_mutitamuragixiw_lukex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479917/normal_5fe8f272136b6.pdfIn PDF document text
    • https://wisapemewe.weebly.com/uploads/1/3/4/7/134713478/d228b.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/vipinib/30503809846.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/pichuva_kathi_movie_hd_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/91854231277.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_off0000bc90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC90 5360 bytes
SHA-256: 6b296275f60575032ce3812460c02295824ba344c4430cc5848e693938f78370
font_01_sfnt_off0000ceb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB7 10596 bytes
SHA-256: c4281d7a95c49772b32cd0d3eb37c4a016a7e29c6c170c1ef5c6419b6c387065