Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0013e95181ea45b…

MALICIOUS

PDF

71.4 KB Created: 2021-02-05 21:59:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fbcbc52f0953fe88ed205ba5e2d2e3a2 SHA-1: b338966c79b4d11436e884c6061a0d76d5d112c0 SHA-256: e0013e95181ea45bed8885107965c7837589f3fcb52b853e686d4c4cd0ebda50
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wb?keyword=understanding%20statistical%20process%20control%203rd%20edition%20pdf PDF link annotation
    • https://gukapubukon.weebly.com/uploads/1/3/4/1/134108909/650596.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410459/normal_600390263bf36.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481821/normal_6004867f139c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446394/normal_600e69c93887a.pdfIn PDF document text
    • https://gepobuxew.weebly.com/uploads/1/3/1/0/131070920/lubureke.pdfIn PDF document text
    • https://cdn.sqhk.co/memenewo/aG2ge3t/bubble_tea_recipe_taro.pdfIn PDF document text
    • http://mademupo.22web.org/risamovoxabuferorobovom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472775/normal_60183450e653b.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/fdifmod/42346857044.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368266/normal_5ffded3f42561.pdfIn PDF document text
    • https://cdn.sqhk.co/midipijikami/8Nr9Mii/96134232952.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461766/normal_5fe0ff6bb175a.pdfIn PDF document text
    • https://norasavunoga.weebly.com/uploads/1/3/0/8/130874384/6970053.pdfIn PDF document text
    • https://cdn.sqhk.co/jidelugob/ehaghhd/vofogavisovipifip.pdfIn PDF document text
    • https://cdn.sqhk.co/zujomawa/iciggfb/half_heart_half_star_symbol_meaning.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dowinoxerirud.epizy.com/pekapevekuwir.pdfIn PDF document text
    • http://vutakeba.epizy.com/microsoft_word_cover_letter_and_resume_templates.pdfIn PDF document text
    • http://xafegewoweli.epizy.com/guzom.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_off0000d6e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6E3 5480 bytes
SHA-256: 8af37edbd8a074680251933a354fb4abc4d21150ab14ca9612679b5713e2dfb8
font_01_sfnt_off0000e9a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9A0 11276 bytes
SHA-256: b4456038d44de1d62f15b0ed5cadb0059d5619422d11407214d221b245ca1808