Malicious PDF — malware analysis report

Static analysis result for SHA-256 075a092e2e9c750c…

MALICIOUS

PDF

40.7 KB Created: 2020-11-07 04:51:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 1122aa9aa2a5565a5c738c237d110a6a SHA-1: 22a7429a575d0b0b03d18b6c77d10b1a064957c9 SHA-256: 075a092e2e9c750c615546447ad1c1e93817cb0bfffa38fc699293ff9f430b0a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafficel.ru/123?keyword=apk+mods+apps PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389582/normal_5f948210bfa22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419827/normal_5f9faf51e2319.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/c90ceef2-f016-4617-b37a-19fd918aed0b/98071877052.pdfIn PDF document text
    • https://durilam.files.wordpress.com/2020/11/exempel_p_allelopati.pdfIn PDF document text
    • https://fidunonip.files.wordpress.com/2020/11/madelizopididam.pdfIn PDF document text
    • https://juvibix.files.wordpress.com/2020/11/wazasusegupaxusijip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be93a3b0-276f-41d0-a3df-7bb5b027179b/gevemosefetex.pdfIn PDF document text
    • https://gexevoj.files.wordpress.com/2020/11/curriculum_vitae_formato_europeo_da_compilare_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e59dd242-fe8c-4533-a887-4695774ff8ab/25713730578.pdfIn PDF document text
    • https://dilopipo.files.wordpress.com/2020/11/demetivudaxakoleze.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/23970785775.pdfIn PDF document text
    • https://juvibix.files.wordpress.com/2020/11/gabizagamumarokidatanum.pdfIn PDF document text
    • https://pifakimep.files.wordpress.com/2020/11/fododuxuxinoni.pdfIn PDF document text
    • https://gonugatak.files.wordpress.com/2020/11/kontrol_sistemleri.pdfIn PDF document text
    • https://kinuvazuruka.files.wordpress.com/2020/11/free_download_acunetix_web_vulnerability_scanner_8_crack.pdfIn PDF document text
    • https://wixipozi.files.wordpress.com/2020/11/chappelles_show_torrent.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_off00005f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F32 5032 bytes
SHA-256: 5014c33b34eec5fbed40b407b7dc29a95fe6ad29875953a7b3fc708b231b1a29
font_01_sfnt_off0000703e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x703E 11360 bytes
SHA-256: ec6ce45dddbc0768c941537cdd91fc5d66a5f0a845bf21e3e5ea014b7d13b3d4