Malicious PDF — malware analysis report

Static analysis result for SHA-256 f776a03bcd0d0f2f…

MALICIOUS

PDF

42.9 KB Created: 2020-11-08 18:04:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 1c75442e265edba5283d067ac490419f SHA-1: d0af926e1e0db0c2809567425960e0cece5e709f SHA-256: f776a03bcd0d0f2f127a35dc02394a3b5d42c4ad23bb5fc67b0b1253d7fefdd6
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=avengers+endgame+free+hd+stream+online PDF link annotation
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/2358473.pdfIn PDF document text
    • https://ranenowubugipo.weebly.com/uploads/1/3/4/0/134040983/7148387.pdfIn PDF document text
    • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/nokekul-feboji.pdfIn PDF document text
    • https://dajifavetesa.weebly.com/uploads/1/3/4/2/134234726/mipebabuxikilulo.pdfIn PDF document text
    • https://kutebebi.weebly.com/uploads/1/3/4/5/134528954/zedoja.pdfIn PDF document text
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/6426361.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368251/normal_5f89d4e4b2c3c.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/00592fb1-7cbf-4ca2-8f19-cf86d0683606/bitenavud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55f4ac5a-c39b-494b-80f3-5d6093b46649/pupeler.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f80e00c-1efb-46fe-bf25-a28931174e2c/13992335127.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b75eb8e-8062-40a1-9571-cced4c884558/for_sale_by_owner_real_estate_contract_nevada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e645cba-5c51-43ea-bec8-2341fcdaeb23/the_dirt_confessions_of_the_worlds_most_notorious_rock_band_audiobook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fbcdc10-455b-4601-84b1-b4c9ed591fde/je_suis_une_mauvaise_personne.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_off0000658e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658E 5372 bytes
SHA-256: 17a2f8e4fc3b29e82c26e50bceb5da9d276dc1ad43f54551f5ccc25a77e5738e
font_01_sfnt_off000077b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B2 11556 bytes
SHA-256: f85b96b866ee815243931375386f092395f4a4d3a3ec3131940c752f705335ec