Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc8b80e019eff150…

MALICIOUS

PDF

52.3 KB Created: 2020-10-16 11:29:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 48cb5979308296ff1b6bcf3eceb3ab29 SHA-1: 33305af66006dcdd1168bbb8b12b7dd53d03cbf4 SHA-256: fc8b80e019eff1508fc1242c61d5b4bcd391b445dd974a253d9cc6141902d26e
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://ggtraff.ru/pify?keyword=income+tax+act+1961+pdf+2020 In PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/2c41886a7012.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/vigirupiruwovilav.pdfIn PDF document text
    • https://pepuzategazeg.weebly.com/uploads/1/3/1/4/131453576/ronifovujaki-vexof-sepaloten-ledaxibojerumo.pdfIn PDF document text
    • https://lajojixuvoporor.weebly.com/uploads/1/3/0/7/130738555/rateradapes_zamobomulig.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/ruwizanemef_zoreserulili_satakovekamu.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/7440f7.pdfIn PDF document text
    • https://mamunazeve.weebly.com/uploads/1/3/0/8/130814121/xelegaradawode.pdfIn PDF document text
    • https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/9546664.pdfIn PDF document text
    • https://nikoxutaju.weebly.com/uploads/1/3/1/3/131378952/2503880.pdfIn PDF document text
    • https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/2625402.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/sijuwoxujupid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367947/normal_5f876367750a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366625/normal_5f875d79c0c71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366324/normal_5f87188721abe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365570/normal_5f87e55b35e2c.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/1bd2e4d6-45d9-4a94-a225-cafb2a58e42a/27548667798.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4539efbd-f8ea-48b9-97cd-9de833acba47/99878348123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/8956/3299/files/tuwopixolupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1832/8991/files/xejevufoxigale.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_off00008b44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B44 5636 bytes
SHA-256: 34d745bc9ae348150b218e7dd209cf4f5434aaac3648d5db10274698652b4080
font_01_sfnt_off00009e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E5D 10996 bytes
SHA-256: df6053456cd8f06ec074325f78bba031a80390266ca3a494db589f7117bb9b49

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