Malicious PDF — malware analysis report

Static analysis result for SHA-256 dafcec970659da40…

MALICIOUS

PDF

63.4 KB Created: 2021-02-23 16:21:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fc3a91bd461cff7ca8c9a98ea2d1f089 SHA-1: 725ee91b337b710bf87f960948b8f311feca3887 SHA-256: dafcec970659da40227ada09bf68a6de9d84159492295636e67ec240970cc6e7
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/wix?keyword=hoover+shampooer+manual PDF link annotation
    • http://krokoboko6.xyz/solinuriwamadiguzufipwqul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385617/normal_602b585dc0f2b.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/hfVqygg/magupawarazix.pdfIn PDF document text
    • https://cdn.sqhk.co/bagadogod/jjbghbl/71143871827.pdfIn PDF document text
    • http://calipshatngaccs1.xyz/63649451641w6rcv.pdfIn PDF document text
    • http://wssummer.space/bumajupumipaxonigumubkc1oh.pdfIn PDF document text
    • http://xsale.trade/sheikh_albani3fe5b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424982/normal_5fcf45b4a9f52.pdfIn PDF document text
    • https://cdn.sqhk.co/wufevinek/gf0gehi/87981541579.pdfIn PDF document text
    • https://puxizabub.weebly.com/uploads/1/3/1/4/131406372/4138228.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/bTmp7if/warzone_2_players_ps4.pdfIn PDF document text
    • http://verifiedbadge-lnstagram.com/wemigolavtdml.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/feborobegibew/46115248086.pdfIn PDF document text
    • https://s3.amazonaws.com/zowibatev/69586511426.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/66560512455.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_off0000bd2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD2E 5080 bytes
SHA-256: abca560e3db97a1f8302f206e26ef3ec97b189c7f7afa774389aa531a0668491
font_01_sfnt_off0000ce4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE4D 10240 bytes
SHA-256: 7cf6a9edf5049877d514356b5246b3efbffd27513c7a1f84157c189135371fd4