Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b0480e78c7c39ff…

MALICIOUS

PDF

44.3 KB Created: 2020-11-05 22:48:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: f2aee4eff4319d4622d9a067c282dd05 SHA-1: 3494db5de7f68240d7373f64036d718c852c9390 SHA-256: 5b0480e78c7c39ff5a0d25f941f6f641260026fc02605a3e2231a20f7a056097
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://trafficel.ru/aws?keyword=transparency+scanning+service PDF link annotation
    • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/busubamolujoxuduwaxe.pdfIn PDF document text
    • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/konire_piparedapasekab_gegaludalitudov.pdfIn PDF document text
    • https://zatuduxe.weebly.com/uploads/1/3/4/5/134595584/semibawodiperinomun.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/fe9f3f43fa3.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/2105481.pdfIn PDF document text
    • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/kuwekewugi.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/bb4052d6-7cac-4f58-bcd1-5d1ceefe047f/31385786438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/xexubozelukojamivaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec91023e-ef22-4c7d-9680-026dec6952ce/81335301957.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/740571ea-61b5-45a5-9ad7-09bb6eb35e1c/sceptre_tv_40_inch_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/south_belcher_animal_clinic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0fcff37-1495-430e-837a-90447ab83fff/59974561506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0826/1276/files/nikon_slughunter_3x9x40.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc603560-9cf9-40dc-9856-0f5f1a0e06e6/23926122222.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/xeliforojenikigipifuwop.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_off00006e97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E97 5180 bytes
SHA-256: 57b9c56ff0ae865ebff765194adc15cb1d7114d369eba3a4de9e65456eba87a6
font_01_sfnt_off00008056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8056 10612 bytes
SHA-256: bd56c2ddbc043e953f99a408c6e471b0e661a567a58ee1fc3a1507d0d85d0731