Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd5d2ae812e89dd3…

MALICIOUS

PDF

62.9 KB Created: 2020-10-03 02:57:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e98225acfd9638fef30deb9cf99c5613 SHA-1: ea0b35a3f56d83fcb104b582ff177667a586e529 SHA-256: fd5d2ae812e89dd3ab0e45a49c18ab6a217c39cdecf4eb4c70fae7c703f7e9bc
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://cctraff.ru/strik?keyword=warmane+boomkin+guide In PDF document text
    • https://site-1038522.mozfiles.com/files/1038522/jovade.pdfIn PDF document text
    • https://site-1041286.mozfiles.com/files/1041286/buvozigi.pdfIn PDF document text
    • https://site-1039672.mozfiles.com/files/1039672/tukiv.pdfIn PDF document text
    • https://site-1039793.mozfiles.com/files/1039793/miwetapelupip.pdfIn PDF document text
    • https://site-1036659.mozfiles.com/files/1036659/77027438732.pdfIn PDF document text
    • http://lozisom.nenibikinis.com/uploads/1/3/1/3/131380500/nogeredagar-gijegawuga-midif-toxomavuzigi.pdfIn PDF document text
    • http://files.embroideryretreat.com/uploads/1/3/0/9/130969580/da5967.pdfIn PDF document text
    • http://files.ashuler.com/uploads/1/3/1/6/131606212/0dcb773c25.pdfIn PDF document text
    • http://files.lovescallinginternational.org/uploads/1/3/0/7/130776714/1489803.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/5d36671b-1611-46e7-8d9a-69d924f534a2/bujikeketesonuvinuxinuno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1df54fb-fae1-47b8-bb18-de6d407c6955/32289498827.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5620ed9-b4d4-4ae3-8277-37b9f5c92d31/85030046938.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90fffff5-6498-4e97-90f0-68728555afa3/42151436641.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f90d9451-eaa4-403e-b730-d3f304b069a1/62275259448.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE9F 5152 bytes
SHA-256: c5749b920265fb78a88e95446830c3bddf74b46bab07890a8266e3159614904f
font_01_sfnt_off0000c01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC01E 15064 bytes
SHA-256: ae24c430ee860907b8d002076732ed7471836b36528459b53b8b35695dd579c1

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