Malicious PDF — malware analysis report

Static analysis result for SHA-256 25d0d93ce338c35c…

MALICIOUS

PDF

72.0 KB Created: 2021-02-12 16:09:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 73c333de45bfd95b752efdf773911a02 SHA-1: 091e00ef098bc3be8a317f63351d168baedb8f40 SHA-256: 25d0d93ce338c35c8e274fedf736737d1e79ddf38eee3e1983e3f6bd2de0b56e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wb?keyword=new%20king%20james%20version%20bible%20apk PDF link annotation
    • http://merogerofame.66ghz.com/aloha_browser_pc.pdfIn PDF document text
    • https://zeraxoxuret.weebly.com/uploads/1/3/4/6/134642117/9076338.pdfIn PDF document text
    • https://ninisajata.weebly.com/uploads/1/3/4/8/134869212/ravadakibepir_lipimila_rivagarirumu_disarevape.pdfIn PDF document text
    • http://teragoronowaki.iblogger.org/south_movie_full_hd_song.pdfIn PDF document text
    • http://pinerapidsrr.com/cs_driving_school_hoursd5462.pdfIn PDF document text
    • https://gozezitigaja.weebly.com/uploads/1/3/4/3/134340412/372071.pdfIn PDF document text
    • https://firalikagux.weebly.com/uploads/1/3/2/7/132740609/xajanokaxeged.pdfIn PDF document text
    • https://xudidetopos.weebly.com/uploads/1/3/4/5/134579215/wujadodexu-siluxodadesowo-fotaretegi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447101/normal_6022175cec966.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446161/normal_5fe00cabd84de.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kovawasokagi.epizy.com/6844221985.pdfIn PDF document text
    • http://bavipilebevim.epizy.com/belly_ring_song_lyrics.pdfIn PDF document text
    • http://wiwafejopof.epizy.com/applied_houdini_rigids_v_free.pdfIn PDF document text
    • http://mibexumobanoko.rf.gd/77170601024.pdfIn PDF document text
    • http://tuwafexom.epizy.com/cbse_class_12_date_sheet_2019.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_off0000da42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA42 5540 bytes
SHA-256: 12ba6bd9649dbfaca75fe536d9d1b878b785a02d6135495cb406ccd0dacd2434
font_01_sfnt_off0000ed2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED2F 11088 bytes
SHA-256: df27445606940a70e1c67f4290b5c39cf90e2bb5f012b928ce9f2b557d39c8a9