Malicious PDF — malware analysis report

Static analysis result for SHA-256 56f07fd5ad7173cb…

MALICIOUS

PDF

40.3 KB Created: 2020-10-08 22:28:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 0c5e75623bf7e9fd9e1f2f4e60d0154c SHA-1: dd2245610b983f99020509bcf68d2cf7d0b7722b SHA-256: 56f07fd5ad7173cbad50ea3ae536777fd0e0a067104d6411eca16c41540ae669
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?keyword=oracal+651+glitter+color+chart In PDF document text
    • https://site-1036692.mozfiles.com/files/1036692/dadirugitegedexut.pdfIn PDF document text
    • https://site-1036730.mozfiles.com/files/1036730/tufimagosewiz.pdfIn PDF document text
    • https://site-1038975.mozfiles.com/files/1038975/xaxusasajotezawonani.pdfIn PDF document text
    • https://site-1038905.mozfiles.com/files/1038905/67391650287.pdfIn PDF document text
    • https://site-1038358.mozfiles.com/files/1038358/mitolelexenalimalutepuva.pdfIn PDF document text
    • http://jemalu.garykearneyart.com/uploads/1/3/0/8/130814855/2214525.pdfIn PDF document text
    • http://files.andasolholiday.com/uploads/1/3/1/4/131453674/2015141.pdfIn PDF document text
    • http://fugazo.vierihairsolutions.com/uploads/1/3/1/4/131438641/31773.pdfIn PDF document text
    • http://nejede.mossandginger.com/uploads/1/3/1/4/131454046/setefagumabobivave.pdfIn PDF document text
    • http://files.artisticimprintsapparel.com/uploads/1/3/1/6/131606690/xejoborafaji_falokifafitot_fizoxerilaxage.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/d463a161-816a-4373-af49-53f051f60adc/9121430790.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc9d8a88-1eb7-4e47-aba6-5fc153be8e9b/nipisaravojer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2289/5272/files/how_many_ounces_is_in_a_pint_of_liquor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/7971/3177/files/mtd_snowblower_8_26.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2164/2146/files/riu_riu_chiu_lyrics.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B88 5240 bytes
SHA-256: c90c001d18dc084d0e1bf4b10e3de1d1e672b8681bc71a52234c80e1fb34fe4f
font_01_sfnt_off00006d53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D53 11184 bytes
SHA-256: 754086b4a8e79253a735af7f4d3a3d8f87f43d9f0b24d7971fb11ac3cd341e61

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