Malicious PDF — malware analysis report

Static analysis result for SHA-256 5702e16d19c3571c…

MALICIOUS

PDF

43.5 KB Created: 2020-10-07 21:56:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ead661dee8ea1f0b6d660c0fef2a84fe SHA-1: 202c4600caad42643c0edd76a722d23376c005c9 SHA-256: 5702e16d19c3571c10be6238dfcaa3c94436ace4563bd328651985223a6ce54e
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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.cc/pify?keyword=ac+unity+trophy+guide In PDF document text
    • https://site-1038375.mozfiles.com/files/1038375/sigazimunezebugodinipev.pdfIn PDF document text
    • https://site-1039427.mozfiles.com/files/1039427/48762061659.pdfIn PDF document text
    • https://site-1040509.mozfiles.com/files/1040509/fikugagugulenanabarediga.pdfIn PDF document text
    • https://site-1036730.mozfiles.com/files/1036730/wepovelen.pdfIn PDF document text
    • https://site-1038614.mozfiles.com/files/1038614/59601310664.pdfIn PDF document text
    • https://site-1036779.mozfiles.com/files/1036779/94875502876.pdfIn PDF document text
    • https://site-1038489.mozfiles.com/files/1038489/vomaronasubovowifuzomomax.pdfIn PDF document text
    • https://site-1037130.mozfiles.com/files/1037130/23568125766.pdfIn PDF document text
    • https://site-1036632.mozfiles.com/files/1036632/60439880947.pdfIn PDF document text
    • http://files.sensoreviews.com/uploads/1/3/0/8/130814308/nuwawis_leboluzimi_duxiwadaxegofuv_sejije.pdfIn PDF document text
    • http://bigezefo.pullmanchinesefood.com/uploads/1/3/0/8/130814471/wifizalekemew.pdfIn PDF document text
    • http://files.jtdentalgroup.shop/uploads/1/3/1/4/131453094/449d17e698cd954.pdfIn PDF document text
    • http://files.circleelmcommunications.com/uploads/1/3/1/4/131453124/3a3ee7c4.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/5727061f-a7c7-43ca-a3f2-d0012bcd2898/83940421754.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57d537ec-d4a2-40bc-a6be-d6f1ef1cad23/5522839535.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c6e4c41-c72d-41fe-bada-1baaf09b7842/26676969440.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2979b22c-140b-41e2-a37e-88cbe7c127d3/nejuduleziwukowa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32f32069-0b61-4167-8afa-4ada7b3d7c85/vafunal.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_off00006bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF6 5004 bytes
SHA-256: 7a85fe8e84f80d70c2f2250dcefa5fe7062e7a6b8178acf1dd61b9757dde5778
font_01_sfnt_off00007d02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D02 10704 bytes
SHA-256: 6008e4859694e9d2f94f625aec971f3063014313e5fac8dc8af7b4b16589d8ea