Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2422c65d6b04f6…

MALICIOUS

PDF

40.9 KB Created: 2020-11-05 17:56:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 75bce1695314b6acbc0d670ceecdfe7a SHA-1: 93414bb0591ae4a4536527d97e2391d6b7cab6f6 SHA-256: fb2422c65d6b04f656f30379625ff2d7a1a2266fcca82795c902cafff14ebe5c
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://trafftec.ru/123?keyword=cubefield+unblocked+games+66 PDF link annotation
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/pupatopadexi.pdfIn PDF document text
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/21ab799c1be.pdfIn PDF document text
    • https://tiposowa.weebly.com/uploads/1/3/1/1/131164246/9477668.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387939/normal_5f9a7237ea6f0.pdfIn PDF document text
    • https://rifuxegu.weebly.com/uploads/1/3/4/5/134525143/sadabixezad.pdfIn PDF document text
    • https://jezaxegare.weebly.com/uploads/1/3/1/3/131380636/sotivugijabosasawivu.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/494efc11-c375-4a04-af59-5885e6851598/25172766987.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/8820429500.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/beginner_s_guide_to_digital_painting_in_photoshop_characters_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b7821b1-3fb7-4f4b-8f3b-24335087da0e/sisefifilozojuvovosiwukot.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/mikanopusagokatazoxu.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/my_big_toe_hurts_when_i_put_pressure_on_it.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36b02f3c-f3e1-4fa5-8f78-12d6b60d15d3/kawaliwokajowevoma.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_off00005ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECF 5508 bytes
SHA-256: 7615d2961e144e4c888cf64854edff7204386b7f40a10f94661e585f8a99b18c
font_01_sfnt_off0000717b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x717B 10488 bytes
SHA-256: 3f48f4342e41ae884cd9ce75336fd4052cbd2dafcc79605e54440e8557a837b9