Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eb999e63c611f7f…

MALICIOUS

PDF

46.9 KB Created: 2020-10-30 23:44:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: bc7a5c32fd4cda445555c4c639873009 SHA-1: 69f4987905fe14047d1329217c355d1b7624d6f5 SHA-256: 6eb999e63c611f7fc22131ccab619e5997a41a736554d6888ae58387789118b6
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.ru/123?keyword=word+that+start+with+r In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375077/normal_5f98d6f2c3de0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416660/normal_5f9827f03d5c5.pdfIn PDF document text
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/4532469.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366041/normal_5f875c0ef15e4.pdfIn PDF document text
    • https://gasipepimajut.weebly.com/uploads/1/3/4/3/134367512/xoperivoser.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/xududev-ledavodu-jatulivarolaxe-bixebenal.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/jegaka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426260/normal_5f9967ee94af2.pdfIn PDF document text
    • https://pituluwo.weebly.com/uploads/1/3/1/4/131437949/0aec8c20a.pdfIn PDF document text
    • https://vefozifus.weebly.com/uploads/1/3/4/3/134382693/kupiwukefimipig.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
    • https://s3.amazonaws.com/zabevog/ropufikotodefotubazirazit.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/guitar_super_system.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C82 4552 bytes
SHA-256: fef80880c244f3da3c97f6c72f2ea9fd12c82615635eb96f05bd0db2d3394b66
font_01_sfnt_off00007c1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1A 10764 bytes
SHA-256: 997a93d91e4a24f11af89418acdf8ea45d161a90baa90a6866f52f731d4cde8d
font_02_sfnt_off0000a0b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0B0 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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