Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4719fb41e8d590a…

MALICIOUS

PDF

43.2 KB Created: 2020-11-08 03:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: b0ece188960064b93c918e3c651731db SHA-1: 8d6aa710a079a6beb878012d4150d604c8700634 SHA-256: d4719fb41e8d590a32d953d18760a69852d4ffe57e5cb657f37dd267f134294c
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://traffset.ru/aws?keyword=charley+s+saginaw+mi PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369664/normal_5f968ed900df8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406168/normal_5f9690f39f7b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366055/normal_5f8c555888c7e.pdfIn PDF document text
    • https://nisutezobeta.weebly.com/uploads/1/3/4/4/134486685/9c0a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372682/normal_5f9543fb93cc8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365642/normal_5f894e9b565ad.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/nilafafakem/3383071070.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/tirujedufil.pdfIn PDF document text
    • https://rewuvitosil180903676.files.wordpress.com/2020/11/xegabaripupofirebinolizug.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/701171426.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2a0aec8-c7a1-4eeb-88c7-985781637d21/acnl_a_guide_to_village_life.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/83735897914.pdfIn PDF document text
    • https://mutozofe.files.wordpress.com/2020/11/67728004733.pdfIn PDF document text
    • https://pozeduribo.files.wordpress.com/2020/11/bilaporevezawijedegetimoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4938a45-68d8-400c-a0fd-b847cd9a8376/campbell_biology_9th_edition_study_g.pdfIn PDF document text
    • https://remetipokuv.files.wordpress.com/2020/11/47008163834.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4715 4912 bytes
SHA-256: 3461f0730557c0f4aae2fd4e9870da9c7aa46224131348399e2edeee086b9053
font_01_sfnt_off000057a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57A0 11212 bytes
SHA-256: 4189a5c87fb0452daa3870a698f7855fb9ef4db843a96260be49ed4446c52c24
font_02_sfnt_off00007c6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6F 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd
font_03_sfnt_off0000919c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x919C 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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