Malicious PDF — malware analysis report

Static analysis result for SHA-256 00214f9282a1e395…

MALICIOUS

PDF

68.9 KB Created: 2020-10-10 17:57:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 19a16278ba79d72ade44c5346e0353d1 SHA-1: adcb5d217e8638ab961b13d50903392e545b1e56 SHA-256: 00214f9282a1e395e3dd705c6774b011eddb69df5fca50ea88b127969da47b18
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/pify?keyword=formal+reports+are+used+to+assist+in+the+process In PDF document text
    • http://dexov.writerial.com/uploads/1/3/1/0/131070420/c836c3.pdfIn PDF document text
    • http://mukewex.theleveledstore.com/uploads/1/3/2/6/132681887/6043281.pdfIn PDF document text
    • http://zomuj.heritagefloristcortland.com/uploads/1/3/1/4/131453870/d039f3f5c6d.pdfIn PDF document text
    • http://files.gcvaa.org/uploads/1/3/1/3/131378988/felezeji_gejupuluram.pdfIn PDF document text
    • http://files.voiceofgodrevivalsministrie.org/uploads/1/3/1/3/131384169/getapozidi.pdfIn PDF document text
    • https://site-1039180.mozfiles.com/files/1039180/47736380008.pdfIn PDF document text
    • https://site-1042788.mozfiles.com/files/1042788/43378929043.pdfIn PDF document text
    • https://site-1039621.mozfiles.com/files/1039621/bixesobuliwowokirin.pdfIn PDF document text
    • https://site-1036644.mozfiles.com/files/1036644/xaful.pdfIn PDF document text
    • https://site-1037069.mozfiles.com/files/1037069/29457635565.pdfIn PDF document text
    • https://site-1036785.mozfiles.com/files/1036785/14281652572.pdfIn PDF document text
    • https://site-1042822.mozfiles.com/files/1042822/78612739295.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/ccef4dee-9ded-439b-b32d-244606ddce1b/27147106249.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/187c9dee-d461-41c3-a8f2-ef52a4f168a6/julezuviwaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/152e070f-cd3c-4888-9d1f-c7d0db65844f/dukugakezalozevetolixejar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b5a5c08-2db2-47b6-b4d3-393bed66f2c6/66521872315.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_off0000cf82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF82 5268 bytes
SHA-256: 06c3676beb54320e5fc7bf7d6c37d27f32106f86a921accd3af15b339dbef1be
font_01_sfnt_off0000e134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE134 10748 bytes
SHA-256: eecc7599e9c0370dd086bc11a5255efafccc51e2f284dfa43a68668b59683d29

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