Malicious PDF — malware analysis report

Static analysis result for SHA-256 2617e5fada79b0ce…

MALICIOUS

PDF

70.8 KB Created: 2021-02-07 12:42:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9d8e43caf1f1c17ed1b986e326efaa9f SHA-1: e450e2bf4b729c143f88c9e5babb1e5a0ef7e2ae SHA-256: 2617e5fada79b0ce019c83dcca2ea1a325882ebff4106e909223399011fe5ea2
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://jacksth.ru/123?utm_term=tik+tok+fans+generator+without+verification PDF link annotation
    • https://cdn.sqhk.co/pulijidapis/eXie0P2/ralikasawibazupevoxuta.pdfIn PDF document text
    • https://tanatomunedasov.weebly.com/uploads/1/3/5/3/135325499/7912413.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452845/normal_601ca727de78a.pdfIn PDF document text
    • https://zubikazosiz.weebly.com/uploads/1/3/4/7/134761183/xokuvop.pdfIn PDF document text
    • https://lugumeduzox.weebly.com/uploads/1/3/0/7/130740149/8055097.pdfIn PDF document text
    • https://xoduwotef.weebly.com/uploads/1/3/5/3/135328954/tosavum_jurasusutek_wonazinobatevi_vudezu.pdfIn PDF document text
    • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/kaloxi.pdfIn PDF document text
    • https://cdn.sqhk.co/rusobotakox/ihwhEhj/8919561511.pdfIn PDF document text
    • https://varepanuror.weebly.com/uploads/1/3/5/3/135394497/3370637.pdfIn PDF document text
    • https://suxozunepewax.weebly.com/uploads/1/3/2/8/132814427/cedf2728a6e0b4.pdfIn PDF document text
    • https://kofudisefases.weebly.com/uploads/1/3/4/0/134018526/dedolavexijib.pdfIn PDF document text
    • https://fugikoji.weebly.com/uploads/1/3/4/6/134611078/vuferepikegubi_damada_pokojilavusulo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498882/normal_5fc58150952df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484632/normal_5fd36c5d375b1.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/takebemanijewok/nexamudoridefavegepa.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_off0000d78a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD78A 5276 bytes
SHA-256: 8f534f6bfd504ffd61fe886e3cdc791303684529ab79917b0682538fb2be1c8e
font_01_sfnt_off0000e999.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE999 10796 bytes
SHA-256: 777c98d0b4878613844124b9ae717533da5fd80300515690e3d3fecdbdb67b96