Malicious PDF — malware analysis report

Static analysis result for SHA-256 926e0b5ae9014cd4…

MALICIOUS

PDF

50.4 KB Created: 2020-10-09 05:51:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f419e7d338ffbfd2e42c3422e64f1596 SHA-1: a3d26b866fe7d142e726928348413dc700febc12 SHA-256: 926e0b5ae9014cd4c54f64ef864382aa44ada76553a699b8e821e4904b23a99f
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://ggtraff.ru/pify?keyword=level+ball+pokemon+white In PDF document text
    • http://jomowup.ollerheadcapital.com/uploads/1/3/1/3/131383548/bizasakisavere_namezifabudalun_fomunag.pdfIn PDF document text
    • http://danoxutem.covenantsuccession.com/uploads/1/3/0/7/130775403/d79777b9eb334a.pdfIn PDF document text
    • http://files.anclotedesign.com/uploads/1/3/0/9/130969141/917483e1b20a6f.pdfIn PDF document text
    • http://files.laurenenadler.com/uploads/1/3/1/3/131380733/vexumona_fomuzasodotu_lodav_nopuxaxarowugas.pdfIn PDF document text
    • http://zorumot.yrpm.ca/uploads/1/3/0/7/130775565/763de2.pdfIn PDF document text
    • http://fevozo.taxi-service.us/uploads/1/3/2/8/132814900/nozewum-xawilaritudu.pdfIn PDF document text
    • https://site-1039341.mozfiles.com/files/1039341/dogilu.pdfIn PDF document text
    • https://site-1036695.mozfiles.com/files/1036695/vitafaru.pdfIn PDF document text
    • https://site-1043357.mozfiles.com/files/1043357/31334034307.pdfIn PDF document text
    • https://site-1036851.mozfiles.com/files/1036851/mosusisotutowimisoreko.pdfIn PDF document text
    • https://site-1038798.mozfiles.com/files/1038798/49596473435.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off000088d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D7 5080 bytes
SHA-256: 4ffdbd3cca97a372a8322600ed728aa8e2b3879ab9adcdefe90b1ec54e16508c
font_01_sfnt_off00009a13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A13 10256 bytes
SHA-256: b4b18ab65bc7f43bda1aa38e7a1cd0f2da82cd3cb48a04348d175bef8128c2f7