Malicious PDF — malware analysis report

Static analysis result for SHA-256 e47592c03366d38c…

MALICIOUS

PDF

54.8 KB Created: 2020-10-23 21:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ca6abdc4555c07dec82ee0824c51c918 SHA-1: 06f3f9526a9ae213171aa3fbf97bae0091194d60 SHA-256: e47592c03366d38c7cb472e47302c601a92fddea7cff9518a425aa5f8e78af15
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://ttraff.club/123?keyword=diablo+3+gear+guide+crusader In PDF document text
    • https://norumevi.weebly.com/uploads/1/3/0/9/130969469/f1fec3b16a0c.pdfIn PDF document text
    • https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/wuwivom-xesijogeda-luziwasow.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/ad84c.pdfIn PDF document text
    • https://dojudiwoju.weebly.com/uploads/1/3/1/4/131406456/79e28451018248f.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/caa64.pdfIn PDF document text
    • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/eea92587.pdfIn PDF document text
    • https://moguvikob.weebly.com/uploads/1/3/0/8/130874292/310218.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://cdn.shopify.com/s/files/1/0479/6150/5955/files/17589315986.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/buwilirofugabudok.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/asidosis_tubulus_renalis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49d5f1e0-0ea2-4c87-aee2-58b9970a1f68/economics_mcconnell_20th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f08e26d-7e9d-4d07-985a-57e9d1d7cb02/boeing_737_max_8.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_off00008972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8972 5108 bytes
SHA-256: 303fa043305e7ecc978912b53b6678796f3e9652208c5e7b331e4f69e1d61d23
font_01_sfnt_off00009ac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AC8 11068 bytes
SHA-256: 0d39e7bfeeede539e893d8a615f1726493c1e194e3a89fdd2efd5a38613de82b
font_02_sfnt_off0000c072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC072 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378