Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e56b444e80ebab…

MALICIOUS

PDF

43.4 KB Created: 2020-11-07 22:54:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: ba038d83686bce126d6066d9cb62e794 SHA-1: 7f93fde18942c149a769c151079d8bff2ea3e927 SHA-256: d1e56b444e80ebabb35bfcda20dfa926c26bd34f807af06e7df8e49ead92a0d2
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://traffmen.ru/123?keyword=balloon+tower+defense+3+hacked+game In PDF document text
    • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/gunatizudexokexalu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387571/normal_5fa10487a76ec.pdfIn PDF document text
    • https://nofexozodaxo.weebly.com/uploads/1/3/4/5/134522082/9702005.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367622/normal_5f9befd3e24e6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://batuvowu.files.wordpress.com/2020/11/ponowepizaku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db034d0e-f20f-4c63-bd9d-1564b1887943/239657706.pdfIn PDF document text
    • https://jejazeg.files.wordpress.com/2020/11/82876003229.pdfIn PDF document text
    • https://mogefemo.files.wordpress.com/2020/11/nukefexevefa.pdfIn PDF document text
    • https://fizafadolozu.files.wordpress.com/2020/11/31713389540.pdfIn PDF document text
    • https://lowanisiluwo.files.wordpress.com/2020/11/770137014.pdfIn PDF document text
    • https://xixijositif.files.wordpress.com/2020/11/fnaf_ultimate_custom_night_download_free_unblocked.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_off0000692a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x692A 5804 bytes
SHA-256: 47eb091f06a88e177b7a269484f281c4a09759b2e89ce2238d89ba8b6354e33d
font_01_sfnt_off00007cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDA 10576 bytes
SHA-256: dd01db1609e3a0823f8fd872bb844e1a6081d6e52fcbb348c24da7d68d719e1b