Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e5f973c4994b14d…

MALICIOUS

PDF

73.0 KB Created: 2021-02-12 19:16:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3eafdbb0bbc0c0f79bbbbc1e7257aab9 SHA-1: ff8e90feaba79a0de38f1f569c7d56830928212f SHA-256: 6e5f973c4994b14d73cd6dd5cc1d0cdb1a26566ac724ef3c815d785159a5fed6
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://seumenha.ru/wix?keyword=android+oreo+apk+download PDF link annotation
    • https://sajozigita.weebly.com/uploads/1/3/0/8/130814351/vunuje_zojumoloto_lixukodupekige_fadotazo.pdfIn PDF document text
    • http://maewallace.com/79915471555g6ukb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445116/normal_601417b9aadff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414848/normal_5ff2b283271cf.pdfIn PDF document text
    • https://jasazifo.weebly.com/uploads/1/3/1/4/131437377/1200630.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365638/normal_5ff80fb594e24.pdfIn PDF document text
    • https://salabupomisopef.weebly.com/uploads/1/3/4/6/134631393/e3ff32.pdfIn PDF document text
    • http://deutschebank-meine.com/graphical_description_of_uniformly_accelerated_motionwof4s.pdfIn PDF document text
    • https://wakebanimoxebej.weebly.com/uploads/1/3/1/3/131383753/kixofuwe.pdfIn PDF document text
    • https://lazofakivew.weebly.com/uploads/1/3/1/4/131406449/6617164.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476302/normal_5fcbe2ce750b1.pdfIn PDF document text
    • https://bewotababuruga.weebly.com/uploads/1/3/1/1/131163836/nizelorujopalulaniw.pdfIn PDF document text
    • https://negowuvezesat.weebly.com/uploads/1/3/4/8/134859399/7958041.pdfIn PDF document text
    • https://tipozuroboga.weebly.com/uploads/1/3/4/2/134265922/7228861.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450151/normal_600794cd09a29.pdfIn PDF document text
    • http://teachersaid.fun/yowhatsapp_new_version_7._80ttq9q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463788/normal_601b0428667e1.pdfIn PDF document text
    • https://lepamume.weebly.com/uploads/1/3/4/8/134882258/a8eb75.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d08b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD08B 4628 bytes
SHA-256: 814648f99fbcbd8a69d5a21ca8bc99e268888a87dfad5be5230ffd6799e0f74a
font_01_sfnt_off0000e04e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE04E 14332 bytes
SHA-256: 9b471b892c5fad4958400ce9c852b69f35f65e8fa273f03a7706236c13d502fb
font_02_sfnt_off000108c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108C9 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71