Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e58b0fee9280719…

MALICIOUS

PDF

69.3 KB Created: 2021-02-26 19:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 55222d3d0f1c92e6f2692d1426b82246 SHA-1: 47d09f25713e07cc53d6dcb9281b8bdf72117359 SHA-256: 1e58b0fee92807196358a312f71935c46dc742543f55940e1df3770c44ba2ef4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wix?keyword=htc+sense+home+apk+for+lollipop PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4454055/normal_5fc8c3607b45f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489717/normal_5ff818bda5df4.pdfIn PDF document text
    • https://nimosawi.weebly.com/uploads/1/3/5/9/135982357/b4085bc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372682/normal_5fc8ecad80d3b.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxawexa/bhbeghA/vikuzanulo.pdfIn PDF document text
    • https://punekoba.weebly.com/uploads/1/3/4/6/134612552/4b45cbda0b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467561/normal_5fef85f38d544.pdfIn PDF document text
    • http://mybiol.site/92520171261idlzo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386330/normal_5fd60092078dc.pdfIn PDF document text
    • http://healsmall.space/busiwizimiw0g97j.pdfIn PDF document text
    • http://frut-tree.site/35838346907flqvc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479210/normal_5fe7764a916c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375083/normal_5ff2d065eaf51.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_off0000d3e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3E1 5280 bytes
SHA-256: c0718abea8e1fd5907cfb3362b10facbed0ef4695361aa1c98f8fd32bb9ec416
font_01_sfnt_off0000e5a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A9 10240 bytes
SHA-256: ae8751de7bbacc0dd93351317f455e38eb17c48defe0f5008d256c62ec016e97