Malicious PDF — malware analysis report

Static analysis result for SHA-256 d113f0caa24c7f0c…

MALICIOUS

PDF

77.0 KB Created: 2021-02-27 13:53:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 7dd90cf1134429c359a29610f17a0bf0 SHA-1: 00f28b561f93daea5473fe003b9a6056abe09d44 SHA-256: d113f0caa24c7f0c9410a697a4f1ac549c49cb21ff98aa7dcb36eda290ba646a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://xajibur.ru/wix?keyword=vocabulary+workshop+level+e+answers+unit+4 PDF link annotation
    • http://natorg.fun/bozokemlu8z.pdfIn PDF document text
    • http://dakisemakegag.sportsontheweb.net/78706459114.pdfIn PDF document text
    • https://cdn.sqhk.co/sinewuvemomi/5LwlrxH/jolteon_plush_toy.pdfIn PDF document text
    • https://gekibevuzoz.weebly.com/uploads/1/3/4/5/134503907/beparobu.pdfIn PDF document text
    • https://cdn.sqhk.co/ribobujir/che9hjz/fedudagawelika.pdfIn PDF document text
    • https://cdn.sqhk.co/pezolaje/gjjgfhc/15705108874.pdfIn PDF document text
    • http://taforojujutusig.mygamesonline.org/descargar_musica_anthony_santo_en_vivo.pdfIn PDF document text
    • http://manamuposa.getenjoyment.net/67905922241.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/tripura_rahasya_hindi.pdfIn PDF document text
    • http://milansit.space/45599473398nste7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427103/normal_6011d67431923.pdfIn PDF document text
    • https://xikigojajutu.weebly.com/uploads/1/3/4/3/134385057/puliguwapedolader.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453891/normal_60187fee9a106.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373755/normal_6014d009e85f4.pdfIn PDF document text
    • https://jufikaparilo.weebly.com/uploads/1/3/4/5/134592165/xidatopepuwokawobi.pdfIn PDF document text
    • http://prosale.company/6.5_creedmoor_load_data_hodgdon_superformance27t6o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449781/normal_5fe8e416357e3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nivuzujanux.myartsonline.com/folepidawawadoneg.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_off0000f0ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0ED 5532 bytes
SHA-256: a59e3f84097f950e3bae7b804b001334845d6d438e64d7dff355ca1f7d812b5f
font_01_sfnt_off000103d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103D9 10196 bytes
SHA-256: 7b65ea8b8032ca770bd90791f87a43cbd8b0a76cf3aa80f28d86d5f93360d920