Malicious PDF — malware analysis report

Static analysis result for SHA-256 016e48f7baf7bdc8…

MALICIOUS

PDF

52.3 KB Created: 2020-10-14 19:34:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f67e115390285ed015d367259a779dea SHA-1: 6812c9b1d2ecb0b3dd5df9789ee7cd5bc2aa486a SHA-256: 016e48f7baf7bdc84a49c2d2941231386b0d74a3517e437c7fd84b13967fdf27
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.com/pify?keyword=android+tv+promotional+channels In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365660/normal_5f87052f35163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f87140bdc887.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366031/normal_5f870228e1489.pdfIn PDF document text
    • https://tajurasexir.weebly.com/uploads/1/3/1/6/131606020/forukoxofi_metizubaxanava_bezurese_lirekox.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/runemevurexuziwone.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/gevoderovepiru.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/f4cd92492c37.pdfIn PDF document text
    • https://site-1037212.mozfiles.com/files/1037212/suletate.pdfIn PDF document text
    • https://site-1036879.mozfiles.com/files/1036879/tivagolatepaluroketek.pdfIn PDF document text
    • https://site-1040780.mozfiles.com/files/1040780/34683918019.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/e644262a-49ec-44e4-96f9-ea6f30cd12ce/nemovewonomavogezujokozo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7225d55e-a644-4007-9bfe-4be110021a7d/90077552345.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de95d28d-f2eb-44ba-bff2-d241650d9d70/benimuneganis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc7c65ce-ca0a-4e32-98f1-40d2da977a9b/18777071798.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2443d14d-2be0-4c15-998c-219dcb0588b7/68593940081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef4cbf61-9b23-4dd3-a1aa-26dcf84ec19b/zorulonakogokesejimowedu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/747e6370-ac97-4cd1-b61c-dcaf7190151b/56332643925.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c29bae81-8c5b-406b-a59c-7d0538c69ea5/74828855895.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C3 5364 bytes
SHA-256: d48e3f56f828fc067e4e0c745fd95def9e6c3ae41137075bec88673c1f91bd1e
font_01_sfnt_off000087d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D1 12112 bytes
SHA-256: 39e78308632419de6ba70b5200a1a4b8addd06cbe98e84f77be5983bf09af8a5
font_02_sfnt_off0000ae77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE77 16132 bytes
SHA-256: 43e84046d57c5d8edad47de9228ce36feb53c5e515436c294a71041590f3a3a6