Malicious PDF — malware analysis report

Static analysis result for SHA-256 9639292c86abd677…

MALICIOUS

PDF

69.8 KB Created: 2021-02-15 08:10:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 96e273366e1c0f6d3abc281b776db093 SHA-1: 7a597f2e26c3daae48c8fff22297ad42422751b2 SHA-256: 9639292c86abd67701491ec18b4d72daeeed7d608eb20660b9ece956017316f7
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://jottigo.ru/wix?keyword=tufanos+vernon+park+tap+website PDF link annotation
    • https://nabovuguxobe.weebly.com/uploads/1/3/1/8/131871891/lefuwuz_gomowav_lovigovoxofonu_juzemonimomo.pdfIn PDF document text
    • http://lewoluxadet.iblogger.org/52048382827.pdfIn PDF document text
    • https://bowonalixatan.weebly.com/uploads/1/3/5/3/135347428/zulenoj_wejubafowewaz_sukomixa_sobap.pdfIn PDF document text
    • https://tumokisomagen.weebly.com/uploads/1/3/4/8/134897409/juzerevi.pdfIn PDF document text
    • https://xefanopebowemid.weebly.com/uploads/1/3/2/6/132681782/b895b85.pdfIn PDF document text
    • https://banafazag.weebly.com/uploads/1/3/4/3/134325205/tosoxixipubata-gefekamaxemo-zejoraxabuzimig-zavimobusonan.pdfIn PDF document text
    • https://minojesifivu.weebly.com/uploads/1/3/4/8/134860027/831782787c7.pdfIn PDF document text
    • https://rigawegafo.weebly.com/uploads/1/3/4/5/134587157/3596575.pdfIn PDF document text
    • https://dapavivilo.weebly.com/uploads/1/3/4/8/134895477/64a6539ec21.pdfIn PDF document text
    • https://pebabole.weebly.com/uploads/1/3/4/6/134698512/c98667.pdfIn PDF document text
    • https://pobufulali.weebly.com/uploads/1/3/4/4/134494274/8423144.pdfIn PDF document text
    • https://jazawimap.weebly.com/uploads/1/3/5/3/135346256/fexupifenolap_xekok_jikawa_domanajubu.pdfIn PDF document text
    • https://vajunepiw.weebly.com/uploads/1/3/2/6/132681590/napujopobosakejukak.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d5cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5CC 5168 bytes
SHA-256: a122a4a2cf14eeeb09ee07627870a37ceb7f23a9f99ae84a40f78c9cfa4e1a12
font_01_sfnt_off0000e78b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE78B 10320 bytes
SHA-256: 2210d87318dacac99cf4ecc3e0de1d718943e7c798cef6308ea2a77b13ceeebd