Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5efaa08a750eb18…

MALICIOUS

PDF

73.3 KB Created: 2021-02-11 08:57:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d03ae1e7c767e4160159995402a43a22 SHA-1: 03b29707cfa1e006e31778a0b39a35625bd90058 SHA-256: e5efaa08a750eb18b67db9ce06dd40e0a0a3f18176eef4f85e41573dd1c38dca
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://maypoin.ru/aws?utm_term=asian+paints+products+information PDF link annotation
    • https://tigerabedudutid.weebly.com/uploads/1/3/5/3/135304069/xegufuje.pdfIn PDF document text
    • https://nojugebi.weebly.com/uploads/1/3/4/3/134321301/3895436.pdfIn PDF document text
    • http://frut-tree.site/bus_simulator_2020_pc_apk4lu6b.pdfIn PDF document text
    • https://lupakekurusope.weebly.com/uploads/1/3/4/6/134652685/9fe1f57137894b.pdfIn PDF document text
    • http://baltika-trans.com/lobby_roof_pop_designqq9vd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408711/normal_5fd664fe109f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390642/normal_601afee9272c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444874/normal_5fdc112eeb341.pdfIn PDF document text
    • https://gewipilozu.weebly.com/uploads/1/3/0/7/130775211/81abf3ff.pdfIn PDF document text
    • http://marketop.club/latapunekmtzpb.pdfIn PDF document text
    • https://sazeduxawi.weebly.com/uploads/1/3/2/6/132695343/6504af.pdfIn PDF document text
    • http://lumacy.site/the_story_of_an_hour_by_kate_chopins2ike.pdfIn PDF document text
    • http://yesnutural.space/21453530977v6wij.pdfIn PDF document text
    • http://fdvsefwfrw.space/65144778899njoc9.pdfIn PDF document text
    • https://cdn.sqhk.co/gasajolop/fHgihfq/subterfuge_synonyme_francais.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_off0000e1f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F6 5260 bytes
SHA-256: f4a499de1acb9631dded0e7c253139d0247d72e14d5cf0b6bf86780358d02310
font_01_sfnt_off0000f3c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3C7 10776 bytes
SHA-256: f97ff999efe469dc47cbfa6f37b036363995bb4417804084d30b25c0bf19e8ce