Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d6f580b642b3883…

MALICIOUS

PDF

63.8 KB Created: 2020-11-07 20:31:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: bfb2bb61a65b05dacd626a88ec8a7ac8 SHA-1: 98cb12bd1969ca9b29d8f7ce68a30df6ea7c7581 SHA-256: 0d6f580b642b3883e3d71e6ba8469f76c7e13251333c2a44900725b729a5d400
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/123?keyword=arizona+model+a+chandler+az PDF link annotation
    • https://newewakezodem.weebly.com/uploads/1/3/4/6/134680802/kusaralidej.pdfIn PDF document text
    • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/1864496.pdfIn PDF document text
    • https://xujajogasugoni.weebly.com/uploads/1/3/4/5/134514057/zetawawenebonus.pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/8562847.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/c8f5cfb2-bb45-4738-8152-f69f7851e619/99649510732.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aed4b3f2-1106-4b8b-bb97-87041372c324/54969723286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59bca57a-3d93-43a6-807a-a40dad41c40d/ruwakesi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/563f8914-31f7-479a-accc-2d8972e4d22c/kakan.pdfIn PDF document text
    • https://s3.amazonaws.com/tipikaxe/wisizulesat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fff7c149-2253-49db-8c37-8ffe9b3157a2/vofipitipuvilodolasabowib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27293bc6-5dfa-4345-91ad-3cc5625b2518/jarikifebaf.pdfIn PDF document text
    • https://vojasajufuda.files.wordpress.com/2020/11/hekate_switch_guide.pdfIn PDF document text
    • https://gonugatak.files.wordpress.com/2020/11/60429395923.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/70274843902.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_off0000b947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB947 5040 bytes
SHA-256: 8a8b268f80e5e72ad145b870232c3879a8486ca3ce41e8c35b5e0cd434fec2b2
font_01_sfnt_off0000ca44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA44 11720 bytes
SHA-256: f5a891adb439dc22675b41b662b8f744b9712a53f7dab740b00825aec37501ec