Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e6a2c8febd83a13…

MALICIOUS

PDF

51.8 KB Created: 2020-11-07 07:29:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 435b2404c9a714c582ea1c3d1a9264b6 SHA-1: fc7b030059b9b3eddd35ab957d05ffd5c86fafc9 SHA-256: 8e6a2c8febd83a13059d1cd71188ed3c8b1488c53cab824f6b8a69ca5873dec7
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://trafffi.ru/123?keyword=i+pilot+link+for+minn+kota+powerdrive+v2 PDF link annotation
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/228d9bcd8.pdfIn PDF document text
    • https://nopiroradonumiw.weebly.com/uploads/1/3/4/4/134401961/bf5969319c6.pdfIn PDF document text
    • https://wijimoki.weebly.com/uploads/1/3/4/4/134485243/ae5a9ed43247.pdfIn PDF document text
    • https://debemalimuwu.weebly.com/uploads/1/3/4/3/134385929/zogegelorewux.pdfIn PDF document text
    • https://kutowovazamil.weebly.com/uploads/1/3/4/3/134362820/0fbd08de6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://tobaluli.files.wordpress.com/2020/11/9883016763.pdfIn PDF document text
    • https://fidunonip.files.wordpress.com/2020/11/8625666511.pdfIn PDF document text
    • https://sebuwisawos.files.wordpress.com/2020/11/fipupojuretis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b85f20d-6163-45eb-9b39-0162112f296f/88864656718.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15bcc11c-0726-45ae-9ca8-24397e8fa65e/controle_sur_les_valeurs_principes_et_symboles_de_la_republique.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/sasigafulaxuvo.pdfIn PDF document text
    • https://varuziwal.files.wordpress.com/2020/11/nitilurukus.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/16083901985.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_off00008bd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BD1 5292 bytes
SHA-256: 4d0cb61204fa9fb9dd04d6bc853b01455f744f592ed4ef2a37997d7e130c42a6
font_01_sfnt_off00009dd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DD8 10556 bytes
SHA-256: cfdda22c6c50bc6dceac8364bf82d552a7cff82525ea06faf75ed0bbeb73083e

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