Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7d5c771ff20455…

MALICIOUS

PDF

42.8 KB Created: 2020-11-07 05:16:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 98c7fc82a469d2d2383b4ca41fdfa277 SHA-1: 56e083444d3dce2f70225db79d20c2ed6b22ec17 SHA-256: ee7d5c771ff204552df181e8fe4ac75f36efaeee7e59480641bfeb39ffd4a2d5
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://trafffi.ru/aws?keyword=southeast+states+and+capitals+quiz+printable PDF link annotation
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/filubelede-wapefoliremided-tomona-remexilobawot.pdfIn PDF document text
    • https://lesofetu.weebly.com/uploads/1/3/1/3/131378838/b3f15256.pdfIn PDF document text
    • https://xibogunef.weebly.com/uploads/1/3/1/3/131398295/xotanitararalagadut.pdfIn PDF document text
    • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/rasava-tevoga.pdfIn PDF document text
    • https://pakedarisibibo.weebly.com/uploads/1/3/4/5/134501134/21ec9787e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0f60291-b933-43db-a0ae-88721a7213de/xeguvofe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5bdfda4-f401-477a-955b-54e6aed9c48f/31098383335.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/clark_cougar_football_2019.pdfIn PDF document text
    • https://gonugatak.files.wordpress.com/2020/11/kontrol_sistemleri.pdfIn PDF document text
    • https://naxatovipu.files.wordpress.com/2020/11/marejenibegoxove.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/948b8e48-e707-4305-9f40-a7bbced5ea91/kitimatu.pdfIn PDF document text
    • https://woremuses.files.wordpress.com/2020/11/vibel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1fbd98d-9495-4501-81f0-2fc75266b2da/13005423480.pdfIn PDF document text
    • https://dowuwiridewe.files.wordpress.com/2020/11/bajorakiguvoxabedesez.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/journal_article_format_example.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_off00006571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6571 5580 bytes
SHA-256: f9ae521681d5912fc078176da1425cecb792bbb5f5baba8259f6c5c88f988f49
font_01_sfnt_off0000785e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x785E 11328 bytes
SHA-256: 7c6cd59811e19ca347404deb17c5201db387e3cada857e4f8cb5aac7cdac5b03