Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cdd03a705013049…

MALICIOUS

PDF

38.8 KB Created: 2020-10-11 09:32:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e8e8631cd8b30fe0be5d3911390b5226 SHA-1: 5a00b666ceb1afa131cd4ac32cbc4cbe30162657 SHA-256: 7cdd03a705013049e21d9987e21bf6231e40088dac5e8177edbfe25034d8de12
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.link/pify?keyword=just+2+words+level+441 In PDF document text
    • https://site-1043434.mozfiles.com/files/1043434/4736359206.pdfIn PDF document text
    • https://site-1037829.mozfiles.com/files/1037829/fevupemaxukoso.pdfIn PDF document text
    • https://site-1040374.mozfiles.com/files/1040374/tozubigizewiz.pdfIn PDF document text
    • https://site-1037122.mozfiles.com/files/1037122/96914447406.pdfIn PDF document text
    • https://site-1038916.mozfiles.com/files/1038916/bedumopalotevelisilaxok.pdfIn PDF document text
    • https://site-1036713.mozfiles.com/files/1036713/fakesug.pdfIn PDF document text
    • https://site-1048245.mozfiles.com/files/1048245/duguxam.pdfIn PDF document text
    • https://site-1038581.mozfiles.com/files/1038581/bokazukaxulorabizo.pdfIn PDF document text
    • http://files.costaelectrics.com/uploads/1/3/1/1/131163969/nisamiti_lesode_parivux.pdfIn PDF document text
    • http://files.hawkknifedesigns.com/uploads/1/3/1/3/131379409/lezovow-dimax.pdfIn PDF document text
    • http://divok.bsajhmi.org/uploads/1/3/2/3/132303219/685796.pdfIn PDF document text
    • http://files.davidbf1.com/uploads/1/3/0/9/130969407/5688889.pdfIn PDF document text
    • http://jobure.karenmccannart.net/uploads/1/3/0/8/130873995/4429351.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/20ca416b-66fd-4bcb-98b2-7379c3217eaf/19502881325.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18f48f5b-c67e-4a96-94a3-073546f9f292/fakirapaneboxeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a62818d-78cb-430d-b33f-8f9b3f58e282/73072829631.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cc04110-9f6a-4bd8-9388-2282ffa78913/79607826793.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2613b501-5122-4a32-a2f3-002b5a2345d9/34328761223.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_off00005992.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5992 5020 bytes
SHA-256: 1640734ef45904aeed535b969d1f914e26c9215a9427229e4c7baa8004e57031
font_01_sfnt_off00006ae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE0 10344 bytes
SHA-256: 552353d2cd1a3ca010fbc767b0ccdc1167edd3cbcd7fe7b6c036c79a0a3c5e9f

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