Malicious PDF — malware analysis report

Static analysis result for SHA-256 2483a4ab32a48233…

MALICIOUS

PDF

49.1 KB Created: 2020-11-07 23:42:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 60d2141dd1900590c7eea3e21094d1c4 SHA-1: 38c32122a82d9dad733d787989b53263f66bccf2 SHA-256: 2483a4ab32a48233261cf26fb801554fd419f388a97fa7745418196128bbb31a
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafficel.ru/123?keyword=ultisols+soil+are+they+young PDF link annotation
    • https://zasiranel.weebly.com/uploads/1/3/4/5/134507270/ff276433a1d.pdfIn PDF document text
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/382f8cca1f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450040/normal_5fa646552fc49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369486/normal_5f9e62681b018.pdfIn PDF document text
    • https://wesujugureju.weebly.com/uploads/1/3/0/8/130874517/11e6f005f2d.pdfIn PDF document text
    • https://tedumuwoke.weebly.com/uploads/1/3/1/3/131397970/nijajobabola.pdfIn PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/xiluvelu.pdfIn PDF document text
    • https://bupiwuzisulim.weebly.com/uploads/1/3/0/8/130874125/7de9fe58.pdfIn PDF document text
    • https://sopoxovolofu.weebly.com/uploads/1/3/4/5/134509961/ravikawimizakijebili.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://likuzow.files.wordpress.com/2020/11/40264502684.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/dovulinorixurag.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/risibadujexokusoloxatek.pdfIn PDF document text
    • https://pupirod.files.wordpress.com/2020/11/sagob.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_off0000770b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x770B 4924 bytes
SHA-256: 45e6fc310a6bcba71dd4a376c7eb13f36b99a55b87aa0e7955381fa1fe32decf
font_01_sfnt_off000087be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87BE 9948 bytes
SHA-256: 8f17a6836269ef036b99b13228f409ce4495993dea86db7f0a3b5278cf439ee0
font_02_sfnt_off0000a9c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9C6 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71