Malicious PDF — malware analysis report

Static analysis result for SHA-256 df85a200fbc5f364…

MALICIOUS

PDF

40.2 KB Created: 2020-11-07 20:37:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: b8a739a979ed8e5b7d9fcf0b04cc08f3 SHA-1: be1e0b35eef36634c9abbc65679d0f0bc6786707 SHA-256: df85a200fbc5f3643918a18337637cfc0cf8ac7fe75a977d6de0591ff3daf69a
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/aws?keyword=go+kart+hero+medford+oregon PDF link annotation
    • https://genamimiwovem.weebly.com/uploads/1/3/1/6/131636881/5bdcd1cad0874d.pdfIn PDF document text
    • https://zopofaxomape.weebly.com/uploads/1/3/4/3/134372760/b3c994aa8e9a.pdfIn PDF document text
    • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/xujewonagamaxu.pdfIn PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/vitelipaxora_lupowevarokiwel_kinimokuda.pdfIn PDF document text
    • https://xogedanubukojoj.weebly.com/uploads/1/3/4/4/134491538/7489589.pdfIn PDF document text
    • https://nesavelo.weebly.com/uploads/1/3/2/3/132303009/6750790.pdfIn PDF document text
    • https://jokonufukitis.weebly.com/uploads/1/3/4/3/134399540/fogidosezusi_fabasuv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/f9284ac8-bd7d-4ce7-8fbe-b30e7fd88bd0/vobetitafabikexobajekiri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/242c44b2-f92b-4c04-9efd-96696822f582/86554003295.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a223bf1a-a65e-4182-832e-33c3c79754c2/wafeda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba726495-1ae5-41cf-8b02-3342d6ac59e4/xoxisadekixopula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7274782b-df43-4282-83c9-d3a739af9b94/jubovut.pdfIn PDF document text
    • https://napabilurer.files.wordpress.com/2020/11/19156447687.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/122e05de-19eb-48f2-843b-e1c984e20b62/67715673261.pdfIn PDF document text
    • https://niragadofob.files.wordpress.com/2020/11/91976350662.pdfIn PDF document text
    • https://ruvopesej.files.wordpress.com/2020/11/400_years_unblocked_games.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000517b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x517B 4944 bytes
SHA-256: 66328bfb2eef7d7ff914eca014305251474ad8aa33c3b92bf37f83e2107d5177
font_01_sfnt_off0000622a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622A 9976 bytes
SHA-256: bfc4df07a4af074a651349821d91b86f21ba5736a1aa3d7d33dd0f2fda21e7c9
font_02_sfnt_off00008428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8428 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

Open this report in the interactive analyzer, or submit your own file for analysis.